Post by: RobsFieros on August 19, 2008, 07:03:28 pm
Post by: Fierofool on October 31, 2012, 06:11:31 pm
What car's bolt pattern is 5x100?
Best Answer. These are the wheels that present no issues.
BUICK SKYLARK 1989-ON 5x100
CHEVY CAVALIER, CORSICA / BERETTA 1989-ON 5x100
CHRYSLER SEBRING, CIRRUS 1996-ON 5x100
DODGE STRATUS, SHADOW, DAYTONA, GLH, SPIRIT, CARAVAN, NEON 1994-ON 5x100
OLDS SKYHAWK, ACHIEVA 1989-ON 5x100
PLYMOUTH NEON, SUNDANCE, BREEZE, ACCLAIM, VOYAGER 1994-ON 5x100
PONTIAC SUNFIRE, SUNBIRD, GRAND AM 1989-ON 5x100
SUBARU LEGACY, IMPREZA, OUTBACK WAGON, FORESTER 1990-ON 5x100
TOYOTA CELICA-ALL, CAMRY, NEW CELICA GT & GTS 1986-ON 5x100
VOLKSWAGEN GOLF 3, JETTA 3, PASSAT GLX, CORRADO, JETTA 4, GOLF 4, BEETLE 1992-ON 5x100
Scion tC 05-08
Potential Matches-These wheels may need wheel-centric rings or may need the wheel center opened up to fit the Fiero hub. Clearance of the suspension or body may also be of issue on some wheels, depending upon tire size and model Fiero.
5x4.00 / 5x100
2000-2006 Audi TT (4 cyl.)
2000-2006 Audi TT (4 cyl.) Quattro
2000-2006 Audi TT (V6)
1980-1998 Buick Skylark
1989-1996 Chevrolet Beretta
1982-2005 Chevrolet Cavalier
1989-1996 Chevrolet Corsica
1995-2001 Chrysler Cirrus
1988-1993 Chrysler Fifth Avenue (FWD)
1988-1993 Chrysler New Yorker
2001-2010 Chrysler PT Cruiser
1996-2006 Chrysler Sebring Convertible
2001-2006 Chrysler Sebring Sedan
1986-2000 Dodge Caravan
1990-1995 Dodge Caravan (AWD)
1984-1993 Dodge Daytona
1988-1993 Dodge Dynasty
1996-2000 Dodge Grand Caravan
1994-2006 Dodge Neon
2003-2006 Dodge Neon SRT 4
1980-1994 Dodge Omni GLH
1980-1994 Dodge Shadow
1980-1994 Dodge Spirit
1995-2007 Dodge Stratus Sedan
2001-2007 Dodge Stratus R/T Sedan
1990-1991 Lexus ES 250
1992-1997 Oldsmobile Achieva
1992-1997 Oldsmobile Achieva S
1992-1997 Oldsmobile Achieva SC
1992-1997 Oldsmobile Achieva SL
1982-1991 Oldsmobile Calais
1982-1991 Oldsmobile Ciera
1982-1991 Oldsmobile Cutlass
1982-1988 Oldsmobile Firenza
1980-1985 Oldsmobile Omega
1984-1988 Pontiac Fiero
1984-1988 Pontiac Fiero GT
1986-1998 Pontiac Grand Am
1985-1994 Pontiac Sunbird
1995-2005 Pontiac Sunfire
2003-2008 Pontiac Vibe
2009 Pontiac Vibe 1.8
2005-2006 Saab 9-2X
2005-2010 Scion TC
2008-2011 Scion XD
2008-2009 Scion XD TRD
1997-2011 Subaru Forester
1993-2009 Subaru Impreza
2002-2009 Subaru Impreza WRX
2003-2004 Subaru Impreza STI
2010-2011 Subaru Impreza 2.5
2010 Subaru Impreza WRX
1990-2011 Subaru Legacy
2000-2009 Subaru Legacy GT
1995-2007 Subaru Outback Wagon
2005-2011 Subaru Outback
1986-1991 Toyota Camry
1986-2005 Toyota Celica GT
1990-1993 Toyota Celica All-Trac
1990-2005 Toyota Celica GTS
1992-1999 Toyota Celica ST
2003-2010 Toyota Corolla
2002-2009 Toyota Matrix
2009 Toyota Matrix S
2010 Toyota Matrix Base
2004-2011 Toyota Prius
2006-2009 Toyota Prius Touring
1998-2010 Volkswagen Beetle
1998-2009 Volkswagen Beetle turbo
1993 Volkswagen Corrado SLC (V6)
1993-1998 Volkswagen Golf III GTI
1993-1998 Volkswagen Golf III VR6
1993-1998 Volkswagen Golf VR6
1999-2005 Volkswagen Golf IV
1999-2005 Volkswagen Golf TDI
2004 Volkswagen Golf R32
1999-2005 Volkswagen GTI 1.8T
1999-2005 Volkswagen GTI VR6
1993-1998 Volkswagen Jetta III GLX
1995-1998 Volkswagen Jetta III VR6
1999-2005 Volkswagen Jetta IV (4 cyl.)
1999-2005 Volkswagen Jetta IV VR6
1992-1997 Volkswagen Passat VR6
Post by: Raydar on November 05, 2012, 10:40:03 pm
That's assuming there is enough clearance to suit the offsets, and nothing interferes on the back side.
Subaru wheels have a 56.1 mm centerbore. They will have to be bored to 57.1 to fit our cars.
Toyota and Scion wheels will have to be bored even more, but lots of people have done it.
For the "ideal" fit, just about anything that will fit on a Volkswagen "New Beetle" will work just fine on a Fiero - within reason. Their offsets are quite similar. (~35mm)
The lone exception is the front of an 88, with its goofy offset. For that, anything that will work on a ~2005 Subaru Impreza will look best on the front of an 88. (~40-48mm) Just be careful of the "Subaru-specific" wheels that will have to be bored out.
Most aftermarket wheels have a centerbore of 70-something mm, and use hub-centric rings to fit the appropriate hub.
Post by: GTRS Fiero on December 24, 2018, 06:06:18 pm
Sometimes it is necessary to consult the list of "option codes" on your Fiero to determine which specific parts it contained as-built by the factory. For example, it is difficult to know the capacity of an alternator by looking at it. The list of option codes (also called RPO or Regular Production Option codes) provides this information. The option codes are printed on a sticker called the "Service Parts Identification Label" located on the left front fender well next to the spare tire. (This label is often referred to as the "RPO Tag" or "RPO Label".) Here is what the codes mean:
AAA Additional Standard Equipment
AD3 Window, hinged roof (sunroof)
AF9 Seat, front, bucket, driver, passenger, reclining ('84-87)
AF9 Lumbar seat, adjustable, driver, passenger ('88)
AR9 Seat, front bucket, driver, passenger, manual reclining
AU3 Power door locks
AV3 Fastener, cargo tie down
A01 Window, deep tinted all, Soft Ray
A31 Window, electric control
A90 Deck lid release, remote control, electric
BC8 Front door pocket RH and LH (available only w/A31)
BW1 Ornamentation, extra, rear BW8 Ornamentation, extra, rear
BX1 Ornamentation, exterior, front end (special)
BY1 Ornamentation, extra, rear
B20 Interior, luxury (w/trim codes 662,822)
B34 Floor mats, front, carpeted
B48 Deluxe trunk trim
B57 Trim, extra, Deluxe
B6V Delete AU3 (in package order) (1987)
B6W Delete A31 (in package order) (1987)
B97 Molding, extra lower accent
CD4 Wiper system, pulse
CJB T-Tops ('88 only)
C41 Heater, with fan and defroster ('84-87)
C41 Heater, base (non AC) ('88)
C49 Defogger, rear window, electric
C60 Air conditioner, front, manual controls
DB4 Sunshade, windshield, with pockets
DC9 Sensor, vehicle speed
DG7 Mirror, RH and LH remote control, electric
D4P VSS Gear, 30 tooth, blue
D4T Gear, Speedometer Driven
D4Q Gear, Speedometer Driven (31 teeth)
D7V Gear, Speedometer Driven
D9C Sensor, Vehicle Speed (35 teeth) (25007335)
D9D Sensor, Vehicle Speed
D34 Mirror, visor vanity
D35 Mirror, outside, rearview (painted)
D42 Engine Compartment Screen ('84)
D60 Color and trim incompatibly override ('84-87)
D74 Mirror, inside, RH visor vanity, illuminated
D80 Extension, rear end panel (spoiler)
D96 Stripe, body side upper
E5Z Speedometer Gears Less Adapter
E9Y Vehicle Speed Sensor
E9Z Speedo Gears Less Keys
E94 Beauville/Rally STX equipment
FW5 Transaxle, final drive, 4.10 ratio
FX8 Transaxle, final drive, 3.61 ratio
F41 Suspension, heavy duty, front and rear (special)
GX3 Transaxle, final drive, 3.33 ratio
GY5 Transaxle, final drive, 3.65 ratio
KO5 Heater, engine block
K22 Generator, 94 ampere
K34 Cruise control, electric
K60 Generator, 100 ampere
K81 Generator, 66 ampere
K99 Generator, 85 ampere
LR8 Engine, 2.5L L4
L44 Engine, 2.8L V6 (High Output)
MD9 3-speed automatic transmission (THM125C)
MG2 Transmission, manual, 5-speed (Muncie) 3.61 ratio
MG3 Transmission, manual, 5-speed (Muncie)
MM4 Transmission, manual, 4-speed, provisions
MM5 Transmission, manual, 5-speed, provisions
MT2 5-speed manual transmission (Isuzu) 3.35 ratio
MV9 3 speed automatic transmission (THM200C)
MX1 3 speed automatic transmission
MY7 4-speed manual transmission (Isuzu)
MY8 4-speed manual transmission (Muncie) 3.32 ratio
M17 4-speed manual transmission (Muncie) 3.65 ratio
M19 4-speed manual transmission (Muncie) 4.10 ratio
NA5 Emission system, federal requirements
NB2 Emission system, Calif. requirements
NK3 Steering wheel, Formula, 3-spoke ('84-85)
NK4 Steering wheel, leather wrapped, 4-spoke ('86-87)
NN7 Fuel filler door, delete lock
NP5 Steering wheel, leather wrapped, 3-spoke
NX1 Wheel, 13 x 5.5
N24 Wheels, turbo finned, aluminum (same as PX1) ('84-85)
N33 Steering column, tilt type
N36 Steering wheel, sport
N41 Power Steering (power steering was eliminated from all production Fieros)
N46 Steering wheel, four-spoke, vinyl
N73 Wheel, Custom Sport, Variation 4
N78 Wheel, 14x7 cast aluminum
N90 Wheel, 15x7 cast aluminum
PB4 Lock kit, aluminum wheel
PHO Wheel, 15x6 front, 15x7 rear, diamond honeycomb
PON Pontiac Assembly Plant
PXT Wheels, 13 inch turbo-finned, aluminum
PX1 Wheels, 13 x 5.5 turbo finned aluminum (same as N24)
PO2 Wheel covers, tri-tech 13 inch (color Coordinated)
PO6 Wheel trim rings
QAB P195/70R14 blackwall, steel-belted (1988)
QDX P195/70R14 blackwall, steel-belted ('85-87)
QDY P195/70R14 white-lettered, steel-belted ('85-87)
QFE P185/75R14 blackwall, steel-belted ('86-88)
QFG P185/75R14 white-lettered, steel-belted ('86-87)
QHS P185/80R13 blackwall, steel-belted ('84-85)
QHU P185/80R13 white-lettered, steel-belted ('84-85)
QPU P215/60R14 blackwall, steel-belted ('84-87)
QPV P215/60R14 white-lettered, steel-belted ('84-85)
QPV P215/60R15 blackwall, steel-belted (front); P215/60R15 blackwall, steel-belted (rear) ('86-87)
QRF P185/70R14 blackwall QZN P185/80R13 blackwall
QZT P205/60R15 blackwall, steel-belted (front); P215/60R15 blackwall, steel-belted (rear)
TR9 Lamp group, courtesy consists of:
U25 Rear compartment lamp
U29 Instrument panel, courtesy
UA1 Heavy duty battery
UL1 ETR AM/FM stereo w/clock
UL5 Radio delete (all)
UL6 AM w/clock (1984)
UM4 ETR AM/FM stereo w/seek & scan, auto reverse, clock
UM6 ETR AM/FM stereo w/clock, cassette, auto rev cassette, seek & scan ('85-88)
UM7 ETR AM/FM stereo w/clock, seek & scan ('86-87)
UQ6 Speaker, sub woofer ('86-88)
UT4 ETR AM stereo/FM stereo w/clock, auto reverse, seek & scan, equalizer & touch control ('85-87)
UU6 ETR AM/FM stereo w/clock, cassette, equalizer, seek & scan
UU7 ETR AM/FM stereo w/clock, cassette (1984)
UU9 ETR AM/FM stereo (1984)
UW5 Radio, provisions for stereo installation
UX1 ETR AM/FM stereo w/clock, cassette, auto rev, search, replay, seek & scan, equalizer, clock ('85-88)
U25 Rear compartment lamp
U29 Instrument panel, courtesy
U63 AM monaural radio, without clock
U66 Speaker system, 4, dual front dash Mounted, dual extended range, package shelf/quarter
VC8 Substitution or deletion authorized ('84-87)
VK3 License plate, front mounting package
VO8 Heavy duty cooling
V53 Luggage Carrier, delete (1984)
V56 Luggage carrier, deck lid
V58 Luggage carrier, deck lid
V73 Bumper Component (or see next item)
V73 Vehicle Identification US WS1 Option picks (group) ('85-87)
WS3 Option picks (group) (1986)
WS6 Performance package, special
WS8 Priced order acknowledged
WS9 High mileage coupe ('84)
WU2 Fiero GT
WV1 Protective equipment, Canada [probably undercoating]
WV9 Package, value leader, ('84-86)
WV9 Package, value leader, ('87) (PM37 + WV9 = PE37)
WV9 Package, value leader, ('88) (2PM37 + WV9 = WPE37)
WO2 Sport appearance package ('88)
W61 Option group #1 (1987)
W63 Option group #2 (1987)
W66 Formula option ('88)
W69 SE option "Special Edition" XEM Tires, Goodyear Eagle GT+4 P205/60R15 BSW STL (front)
YT1 Built-up, custom door and quarter
YT9 Fisher furnished parts
Y82 Indy Pace Car ltd. edition (Includes AD3, B34, DG7, D80, NP5, UU6 & V53) (1984)
Y99 Special Rally suspension package (special shocks, 14" Hi-Tech wheels, P195/70R14 SB Tires, 1985-86)
YLM P215/60 R15 BSW STL (front) W/P215/60 R15 BSW STL (rear)
YLM P205/60R15 BSW STL w/P215/60R15 BSW STL (front and rear)
YT9 Fisher Furnished Parts
Z35 Advance price sheet
ZV1 Manufacturer's statement of origin
1SA Option group #1 (1988)
1SB Option group #2 (1988)
1SC Option group #3 (1988)
13B Genor cloth ('84) Pallex cloth ('85) Light Slate Gray
13C Placid/Pallex cloth, Light Slate Gray ('84-85) (2 tone)
13D Indy 500/Sierra leather/Pallex cloth, Light Slate Gray
13I Interior Color, Light Slate Gray
14 Light Gray Metallic ('84-85)
14U Light Gray Metallic (upper of two tone)
16 Silver Metallic ('86-88)
18 Medium Gray Metallic
18L Medium Gray Metallic (lower of two tone)
19P Wheel Color, Black
21 Bright Blue Metallic
40 White ('84-86, 88)
40U White (upper of two tone)
41 Black
41L Black accent
41U Black (upper of two tone)
53 Bright Yellow (1988)
56 Light Gold Metallic ('86-87)
60P 15" diamond spoke wheels, gold ('88 GT)
62B Ripple cloth, Light Saddle
62D Pallex cloth, Light Saddle
62I Interior Trim, Light Saddle
622 Suede leather/Pallex cloth, Light Saddle
64B Genor cloth ('84), Pallex cloth ('85) Medium Doeskin
64C Placid/Pallex cloth, Medium Doeskin (2 tone)
64D Pallex cloth, Medium Doeskin (2 tone)
643 Fleece/Suede, Medium Doeskin (2 tone)
66B Pallex cloth, Medium Beechwood
66D Matrix cloth, Medium Beechwood
64I Interior Color, Medium Doeskin
649 Seat Belt Module, Medium Doeskin
71 Red
71L Paint, Red (Lower Accent)
71U Paint, Red (upper of two tone)
77 Ruby Red ('87-88)
81 Bright Red
81U Bright Red (upper of two tone)
82B Ripple cloth, Dark Gray
82D Pallex cloth, Dark Gray D (trim level) Deluxe
82I Interior Color, Medium Dark Gray
139 Seat Belt Module, Light Slate Gray
629 Seatbelt Color, Light Saddle
822 Suede leather/Pallex Cloth ('86-88), Ventura Leather/Pallex cloth ('88),
Dark Gray ('86-87), Medium Dark Gray ('88)
829 Seat Belt Module, Medium Dark Gray
6XX, 7XX, 8XX and 9XX codes (the "X" can be any letter)
6 code = left front spring code
7 code = right front spring code
8 code = left rear spring code
9 code = right rear spring code
6HY Spring, Left Front, 10034095 (1985-87)
7HZ Spring, Right Front, 10034096 (1985-87)
8WY Spring, Left Rear, 10029092 (1984-87)
9WY Spring, Right Rear, 10029092 (1984-87)
WA-NNNN (N = any number) code on the bottom of the RPO tag is the Fisher Body "WA" paint number. (Fisher Body is the division of GM that produced and painted the car body.) Use this number when buying equivalent paint from any paint supplier. Touch-up paint suppliers such as PlastiKote and Dupli-Color also use this number as a cross-reference. Use the cross-reference manual found by the paint display in your auto parts store to obtain the correct spray can or bottle for your car.
Note that the two digit numbers in the above list (14, 18, 40, 81, etc.) are also paint codes. Some GM cross-references use this number also. If you see something like "81U/16L" it means the upper portion of the Fiero is "81" or Bright Red and the lower portion of the car (ground effects) is "16", Silver Metallic.
Post by: GTRS Fiero on December 24, 2018, 06:09:18 pm
In this section we list the Technical Service Bulletins (TSBs) that have been issued by GM which are deemed to apply to the Fiero. GM issues lots of TSBs. TSBs are recommended repair or maintenance procedures specifically addressed to GM mechanics and service personnel. Do not confuse a TSB with a recall. A recall has government-mandated provisions that relate to safety which must be observed for specific vehicles. GM and the US government make recall information freely available to the public, but GM is under no obligation to share TSBs. In fact TSBs are copyrighted and cannot be freely published. Thus we do not have specific wording from TSBs on this web site. All we have is the general description of the TSB as provided by AllData (http://www.alldatadiy.com/TSB/48/88481211.html).
If you are interested in reading a specific TSB, you can purchase it on-line via AllData, you can get it from your friendly local GM dealer (maybe), or in some cases, you can get it via your local library.
Any specific TSB on the list may apply to many GM cars besides the Fiero. Some of the TSBs will not apply to the Fiero and we do not know why AllData (the source of our information) included them. (I.e. - "Power Antenna Will Not Retract".) Nevertheless, we have maintained the list in its entirety.
Below is the alphabetic listing of 336 TSBs published as of April 2010. We find many of them intriguing and wish we had specific information that we could share.
TITLE TSB # ISSUED
A/C - CFC Reduction & Refrigerant Recovery/Recycling 89115 Aug 89
A/C - Charging Capacities Chart 90111 Apr 90
A/C - Compressor, New Sealing Washers 9211A Nov 91
A/C - Delayed Cooling After Engine Start Up 8813 Nov 87
A/C - Leak Test 9217 Jun 92
A/C - Missing Block Fitting Sealing Washers From Kits 9213 Feb 92
A/C - O-Ring Identification Chart 8817 Feb 88
A/C - Odor 88114 May 88
A/C - Odors On Hot/Humid Start Up 9113 Oct 90
A/C - PureGuard 2 Operating Alert 73-12-13 Nov 97
A/C - R-134A Refrigerant Information 331209R Jun 93
A/C - R12 or R134a Service Recommendations 631209 May 96
A/C - Refrigerant Loss Prevention 9119 Mar 91
A/C - Retrofitting R-12 to R-134a 431207E Jan 97
A/C - Retrofitting R-12 Vehicles to R-134A 331226 Jan 94
A/C - System Description & Diagnostic Procedure 8912 Oct 88
A/C - Systems With R12 Or R134a Service Issue 731204 Feb 97
A/C - Tool And Equipment Maintenance 631208A Apr 97
A/C - Use of Alternate Refrigerants to R-12 9312 Sep 92
A/C Compressor Oval O-Ring - Seal 9012 Sep 89
A/C Compressor Seal Washer - Reference Chart 631215 Nov 96
A/C Refrigerant - Contamination 431223 Sep 94
Auto & Manual Trans - AC Delco Remanufactured Transmissions 72-05-02 Aug 97
Auto Trans - 3T40, 125/125C New Spring Dowel Case Cover Pins ATRASIL8923 Jun 89
Auto Trans - 3T40/125C New Roller Clutch 91725 Feb 91
Auto Trans - 3T40/3T40-A Replacement Transmission Update 9173A Aug 90
Auto Trans - 3T40/THM 125C Forward Drum Design Changes ATRASIL896 Feb 89
Auto Trans - 3T40/THM 125C Intermittent or No TCC Apply ATRASIL8924 Jun 89
Auto Trans - 4T60/3T40 Grinding/Growling On Incline 91717 Nov 90
Auto Trans - 125, 200C/200 4R, 700 R4 Hidden Residue Build Up ATRATB8623 May 86
Auto Trans - 125/440 T4 Sprocket and Final Drive ID ATRATB120 Jul 92
Auto Trans - 125C Uncontrolled Lock-Up, Kills Engine At Stop ATRATB048 May 91
Auto Trans - 125C, 440T4 No Upshift ATRATB8730 May 87
Auto Trans - AXOD/E 44T4's and 125's Chain Stretch ATRATB099 Feb 92
Auto Trans - Checking Pressure Switches For Leaks ATRATB887 Feb 88
Auto Trans - Choosing the Right ATF ATRATB9002006 Feb 90
Auto Trans - Converter Clutch Shudder ATRATB8612 Mar 86
Auto Trans - Core Return Product Feedback Form 01-07-30-029 Oct 01
Auto Trans - Cracked Flex Plate ATRASIL8822 May 88
Auto Trans - Delayed Neutral to Drive Engagement 88722 Mar 88
Auto Trans - Dexron® III Fluid Introduction 570201 Mar 95
Auto Trans - Dexron®(R) VI Fluid Availability 04-07-30-037B Jun 06
Auto Trans - Dexron®(R)-VI Fluid Information 04-07-30-037D Nov 07
Auto Trans - Diagnosing Converter Lock-Up Problems ATRATB046 Apr 91
Auto Trans - Drive Axle and Wheel Lug Nut Torque Specs ATRATB294 Jan 95
Auto Trans - Engine Vacuum Testing ATRATB028 Oct 90
Auto Trans - Evaluating Peened Spacer Plates 91737 Aug 91
Auto Trans - Final Drive Ratio 89726 Apr 89
Auto Trans - Fluid Oil Cooler Flush 02-07-30-052F Sep 09
Auto Trans - Fluid Usage (Cold Weather Shiftability) 88731 May 88
Auto Trans - Front Bushing Wear ATRATB8754 Sep 87
Auto Trans - Governor Pressure Switches ATRATB869 Feb 86
Auto Trans - Harsh Forward Engagement ATRATB339 Jan 96
Auto Trans - How To Use A Pressure Gauge ATRATB078 Nov 91
Auto Trans - Manual Update, Checking ATF Color, Odor & Level 89743 Aug 89
Auto Trans - Math Formulas Part I ATRATB8923 Aug 89
Auto Trans - Math Part II ATRATB8930 Oct 89
Auto Trans - Methods to Check for Restricted Exhaust ATRATB8736 Jun 87
Auto Trans - New Transaxle Fluid 9272 Oct 91
Auto Trans - No Converter Clutch Apply When Unit Is Hot ATRATB8524 Jan 85
Auto Trans - No Movement in Drive or 3rd Gear 08-07-30-027 Jun 08
Auto Trans - No Reverse or Slips In Low/Reverse 92718 Jun 92
Auto Trans - No Second Gear 8979 Nov 88
Auto Trans - No Upshift/Governor Contamination ATRATB8816 Mar 88
Auto Trans - Procedure If ATF is Antifreeze Contaminated 377123 Jun 93
Auto Trans - Proper Fluid Level Checking Procedure 8871 Jul 87
Auto Trans - Rapid Converter Pump Bushing Wear ATRATB861 Jan 86
Auto Trans - Revised Drive Link Wear Specification 90714A Mar 90
Auto Trans - Slipping or No-Shift/Metal Sealing Rings ATRATB8748 Aug 87
Auto Trans - Slips In 1st or No 1st Gear 89749 Nov 89
Auto Trans - Sprag Rotation ATRATB8834 Jul 88
Auto Trans - THM 125C Model Codes ATRATB036 Jan 91
Auto Trans - THM 125C Sticking TCC Solenoids ATRASIL8838 Nov 88
Auto Trans - THM Late or No Upshifts ATRATB179 Jul 93
Auto Trans - THM Steel Clutch Piston Inspection ATRATB8832 Jul 88
Auto Trans - Torque Converter Identification ATRATB010 Sep 90
Auto Trans - Twenty Steps To Successful Repairs ATRATB8927 Sep 89
Auto Trans - Updated Input Carrier Thrust Washers 88718 Mar 88
Auto Trans - Valve Body Cover or Oil Pan Leaks 88710 Jan 88
Accessories (Aftermarket) - Installation Guidelines 9182 Aug 90
ACDelco(R) Remanufactured Transmissions - Program Update 00-07-30-011 Jun 00
Air Bag (SIR) On-Off Switch Kits, New Parts and Service 99-09-41-004 Jan 00
Air Bags - Frontal (SIR) ON-Off Switch Kits, Parts/Procs 73-90-23 Jan 98
Alignment - Camber/Caster Adjustment Tool 88310 Jan 88
Alignment - Revised Specifications 88311 Jan 88
Alignment - Specifications/Requirements/Recommendations 05-03-07-009B Jun 08
Alignment - The Importance of Four Wheel Alignment 8931 Sep 88
Aluminum Wheel - Coated Wheel Weights 9131 Aug 90
Aluminum Wheels - Clear Coat Scuffed and Scratched 93101 Oct 92
Aluminum Wheels - Cosmetic Damage During Balancing 93313 May 93
Anti-Lock Brake - Aftermarket Products Usage Precaution 435001 Feb 94
Audio - Radio Frequency Interference (RFI) Diagnosis/ID 349212R Jul 93
Audio System - Noise When Using Portable Playback Unit 06-08-44-015B May 09
Audio System - Refurbishing Radio Faceplates/Knobs 08-08-44-026 Aug 08
Battery - Diagnosis and Charging 89358 Nov 88
Battery - High Charger Setting to Recharge 89624 Feb 89
Battery - Insulator Replacement & Caution 99-06-03-002 Mar 99
Battery - Revised Parasitic Drain Ampmeter Connection 90628 Mar 90
Battery - Storage/Testing/Diagnostics/Charging 8884 Nov 87
Battery/Charging System - No Start Condition 91646 Jun 91
Body - Diagnosis and Correction for Wind Noise 911034 Aug 91
Body - Hem Flange Rust Repair Information 02-08-98-002C Feb 09
Body - Maintaining Exterior Weatherstrip Appearance 99-08-64-016C Jul 09
Body - Marks/Stains on Windshield When Wet 09-08-48-002A Mar 09
Body - Metal Body Panel Corrosion Protection 03-00-89-008D Nov 07
Body - Metal Panel Adhesive Bonding Information 02-08-98-001C Oct 06
Body - Paint Code Information 881010 Jan 88
Body - Polypropylene Energy Absorber Replacement 07-08-63-001 Apr 07
Body - Sealer Tape For Collision Repairs 731049 Feb 97
Body - Side Window Chipping Information 06-08-64-001B Oct 09
Body - Stain/Film On Windshield Glass Perimeter 09-08-48-006 Sep 09
Body - TPO Fascia Cleaning Prior to Painting 08-08-51-002 Mar 08
Body - Urethane Adhesives for Glass Applications 02-08-48-001B Mar 06
Body - Vehicle Glass Distortion Information 00-08-48-005C Feb 08
Brake Fluid - Level & Filling Recommendations 00-05-22-004 May 00
Brakes - Drag Condition, Adjustment of Brake Switch 8959 Apr 89
Brakes - Guidelines Concerning Noise 88513 Sep 88
Brakes - On-Car Rotor Turning Tool 89SM5 Jan 89
Brakes - Pulsation & On Car Rotor Turning 8955 Jan 89
Brakes - Recommended Service Procedures 9154 Dec 90
Brakes - Restricted Brake Fluid Passage Diagnosis 8951 Oct 88
Brakes - Rotor & Hub Flange Cleaning Tool Revision 73-50-37 Jan 98
Brakes - Rotor Lateral Runout Correction Information 01-05-23-001B Jan 08
Brakes, Front - Pulsation Diagnosis, Correction, Repair 435009 Dec 94
Campaign - Product Bulletin Numbering System 410103 Sep 94
Carpet - Loose on Side Wall Trim Pads 90108 Nov 89
Cellular - Telephone Service Program 9294 Aug 91
Child Restraint - Auxiliary Seat Belt 99-09-40-008 Jan 00
Compact Disc Players - CD Changer Loading Procedures 649601 Jan 97
A/C - Contaminated R12 Refrigerant - Testing & Handling 531205 May 95
Coolant - Information on Propylene Glycol Usage 436201B Apr 95
Cooling - Radiator Repair/Replacement Guidelines 99-06-02-017 Oct 99
Cooling System - Coolant Recycling Information 00-06-02-006D Aug 06
Cooling System - Leak Diagnostic Procedure 89610 Oct 88
Cooling System - Reconstituted Anti-Freeze 90SM1 Sep 89
Cooling System - Water Pump Leaks 88651 Jun 88
Cooling System, A/C - Aluminum Heater Cores/Radiators 05-06-02-001A Jul 08
Cruise Control - (W/Electro Stepper Mtr.) Diagnostics 83-90-08 Jun 98
Cruise Control - Drop Out/Fail to Set or Resume 92919 Jan 93
Cruise Control - Incorrect Resume Operation 8999 Jul 89
Daytime Running Lamp - Retrofit Kits 538209 Oct 95
Door Lock Cylinders - Binds, Sticks, Hard to Insert Keys 931020 Mar 93
Drivetrain - New Seal Protector for Drive Axle R&R 89720 Feb 89
Post by: GTRS Fiero on December 24, 2018, 06:09:32 pm
ECM - Packard 32-Way Connector Identification 9064 Sep 89
ECM/PCM - Circuit Board Damage Prevention 91640 May 91
ECM/PCM - Damaged and/or Mis-Diagnosed 91648 Aug 91
EGR System - Parts Information 88676 Oct 88
Electrical - Aftermarket Fuse Warning 07-08-45-002 Sep 07
Electrical - Detecting Intermittent Problems 9282 Sep 91
Electrical - Instrument Panel & General Wiring Repair 06-08-45-004 May 06
Electrical - New Nickel Tape Shields Harnesses 149301 Jul 94
Electrical Systems - Isolation Diode Replacement 93815 May 93
Emission - Enhanced Inspection Maintenance Programs 436505 Apr 94
Emission Systems - State Testing Information 9101 Aug 90
Engine - AC Delco Remanufactured Engines 99-00-01-001 Sep 99
Engine - Crankcase Flushing Information 04-06-01-029B Feb 08
Engine - Drive Belt Misalignment Diagnostics 08-06-01-008A Jul 09
Engine - Hard Start/Stalls at Idle 88662 Jul 88
Engine - Head Bolt Torque Clarified/Updated 89658 Jul 89
Engine - Installation of 75 mm Oil Filter 89647A Mar 90
Engine - Miss, Hesitation, or Roughness 93356D Oct 92
Engine - Miss, Hesitation, or Roughness 9368 Oct 92
Engine - Noise/Damage Oil Filter Application Importance 07-06-01-016B Jul 09
Engine - Noise/Push Rod Guide Plate Wear 88658 Jun 88
Engine - Oil Economy Information 9264 Aug 91
Engine - Oil Leaks From Front Crankshaft Seal 07-06-01-023 Dec 07
Engine - Oil Leaks from Crankshaft Rear Main Seal 05-06-01-019F Oct 07
Engine - Roughness (Pierced Secondary Ignition) 88621 Feb 88
Engine - Sealant Usage/Procedures 05-06-01-010B Sep 07
Engine - Stalls While Engaging Auto Trans In Reverse or Drive 88712 Jan 88
Engine - Surface Conditioning Discs Precautions 87-61-24 Apr 98
Engine - Updated Oil Pressure Sensor Service Procedure 88822 Aug 88
Engine - Use of 'Surface Conditioning Disks' 00-06-01-012C Apr 08
Engine Controls - Damage to Electrical Terminals 8886 Dec 87
Engine Controls - ECM May Contain Wrong PROM 8861 Sep 87
Engine Controls - Intermittent Connection to the ECM 88813 Jun 88
Engine Controls - MAP Chart, DTC's 33, 34 ,63 ,64 90627 Apr 90
Engine Controls - Static Electrical Damage Precaution 8961 Sep 88
Engine Controls - TPS Closed Throttle Specifications 8864 Oct 87
Engine Controls - Updated Rough/Unstable Idle Chart 88653 Jun 88
Auto Trans - Shift/Driveability Concerns/MIL ON 04-07-30-013B Feb 07
Engine/Fuel System - Oil/Fuel Additive Information 05-00-89-072B Jun 08
Engines - ACDelco Remanufactured 72-05-07 Dec 97
Enhanced Emission Inspection Maintenance - Program Update 536507 Dec 95
Enhanced Emission Inspection Maintenance - Equipment 636532 May 96
Enhanced IM240 Program - Implementation Plan 436507 Dec 94
EVAP System - Service of Connectors 00-06-04-021 May 00
Exhaust - Importance of Heat Shields 88628 Mar 88
Exhaust - Manifold Replacement 88679 Nov 88
Fuel - Feed/Return Pipe Repair Precautions 89615 Nov 88
Fuel - How Fuel Economy Is Determined 306502 Oct 93
Fuel - Normal Pump Run-On 876GAS63 Sep 87
Fuel - Pump Replacement Caution, Strainer 89619 Jan 89
Fuel - Reformulated/Oxygenated Gasolines 570102 Jun 95
Fuel - Use of MTBE At 15% or Less In Gasolines 8906 Oct 89
Fuel System - 'TOP TIER' Detergent Gasoline Information 04-06-04-047I Aug 09
Fuel System - E85 Fuel Usage Precaution 06-06-04-035A Feb 08
Fuel System - Fuel Injector Maintenance Cleaning 04-06-04-051B Jan 06
Fuel System - GM Fuel System Treatment PLUS(R) Info. 05-00-89-078B Feb 08
Fuel System - TOP TIER Detergent Gasoline (Canada) 05-06-04-022E Aug 08
Glass - Adhesive Caulking Kit Revisions 431048 Nov 94
GM Campaign Identification Label 510103 May 95
Headlamp Lens - Distortion Caused by Aiming Equipment 638111 Apr 96
Headlamps - Moisture Found In Housing 8889A Feb 88
I/M 240 Program - Equipment Purchase 436510 Jan 95
I/M 240 Repairs - Obtaining Technical Assistance 436506 Oct 94
I/M Emissions Diagnostic Manual - Program 516502 Feb 95
Ignition - Precautions On Use of Spark Tester 92657 Aug 92
Ignition System - Misdiagnosis of the DIS System 8865 Oct 87
Instrument - Cluster/Controller Exchange/Repair Program 8888A Apr 88
Instrument Panel - Surface Cleaning 911021 Apr 91
Instrument Panel - Upper Surface Reflection 99-08-49-006 Apr 99
Instruments - Bat. Light Flickers During Wiper Operation 88828 Sep 90
Instruments - Reduced PRNDL Display Visibility 02-08-42-004A Mar 07
Instruments - Resetting Trip Odometer 88810 Feb 88
Intake Manifold - Inspect/Replace After Engine Damage 00-06-01-026B Jun 07
Interior - Elimination Of Unwanted Odors 00-00-89-027E Sep 08
Interior - Seat Cover Wrinkle/Crease/Burn Info 04-08-50-006C Aug 09
IP Dimmer Control - Proper Setting 99-08-42-009 Nov 99
Key Code - Information 610111 Nov 96
Key/Key Number/Security Chip - Replacement 01-00-89-009 May 01
Labor - Revised Operation Z1241/Personal Property Damage 62-05-02A Nov 97
Lap/Shoulder Belts - Dealer Installed Rear Kits 99-09-40-006 Jan 00
Leather Seat Covers - Cleaning Procedure 431606 Oct 94
Locks - Key Code Security Rules And Information 06-00-89-051C Feb 09
Manual Trans - Cable Routing and Replacement 88726 Mar 88
Manual Trans - Completion of Exchange Program 88SM3 Sep 87
Manual Trans - Fluid Leak From the Level Indicator Assy Bore 8874 Oct 87
Manual Trans - Hard or No Shift (Loose Shift Lever Nut) 88732 May 88
Manual Trans - High Clutch & Shift Effort or Gear Clash 89752 Feb 90
Manual Trans - Hydraulic Clutch Bleeding Procedure Improvement 01-07-31-002B Nov 06
Manual Trans - Neutral/Drive Gear Rattle 88740 Oct 88
Manual Trans - Operating Characteristics 03-07-29-004F Jul 09
Manual Trans - Proper Service Fluid 88717 Feb 88
Manual Trans - Shift Lever Cable Routing 88714 Feb 88
Multec Fuel Injectors - Cleaning Information 91626 Feb 91
No MIL Diagnostic Chart A-1 Revision 416532 Jan 95
Odometer/Speedometer - ACDelco Service Center Locations 668304A Sep 96
Oxygen Sensor Test - Revised Tech 1 Mass Storage CD 516547 Jan 96
Oxygen Sensors - Silica Contamination 81I37 Feb 81
P/S - Proper Fluid Usage, Not ATF 89315 Apr 89
P/S - Reduced Assist When Cold 033206 Mar 94
Paint - Alternative Stripping Procedures 90SM4 May 90
Paint - Assembly Plant Identification 88109 Jan 88
Paint - Diagnosis & Repair For Chipping 891022 Jun 89
Paint - HVLP Application Information 911028 Jun 91
Paint - Minor Paint Imperfection 881013 Jan 88
Paint - Polishing Basecoat Clearcoat Exterior Finishes 88108 Dec 87
Paint - Protective Exterior Barrier Coating 88SM7 Jun 88
Parts - Expediting Procedures 480502 Aug 94
Parts Expediting - Reimbursement Policy 48-05-02B Dec 97
Pocket Guide - Technicians Driveability Diagnostics 90636 Jul 90
Policy - Assembly Plant Information Requests DPTV 89SM1 Sep 88
Power Steering - Reduced Assist At Low Temperatures 91312 Feb 91
PROM/MEMCAL - Identification Marks 446501 Oct 94
Radio - Power Antenna Will Not Retract 8893 May 88
Restraints - Seat Belt Warning Lamp On/Buckling Issues 09-09-40-001 Feb 09
Restraints - Usage of Used/Salvaged/Imitation Components 08-09-41-003 Feb 08
Seat Belts - New Restraint System Service Information 92103 Aug 91
Seat Belts - Seat Belt Extender Availability 99-09-40-005E Jan 08
SIR - Operating Vehicle with Warning Light On 83-81-34 Mar 99
SIR Sensor - Revised Replacement Information 9398 May 93
Steering - Power Rack & Pinion Gear Service Information 89318 May 89
Steering - System Bleed Procedures 383001 Dec 93
Suspension - Chassis Lubrication Importance 00-00-90-001 Nov 00
Suspension - Front End Rattle 8839 Jan 88
Suspension - Shock Absorber/Strut Leakage Information 05-03-08-002C Oct 09
Suspension - Shock Absorber/Strut Replacement Guidlines 72-05-12 Jan 98
Tire - Use Of Nitrogen Gas In Tires 05-03-10-020B Jan 09
Tires - Correct Inflation Pressure Information 00-00-90-002J Jan 09
Tires - Dealer Responsibilities 8834 Nov 87
Tires - Effects of Pressure 8838 Jan 88
Tires - Speed Rated Information 433502 Jul 94
Tires/Wheels - Wheel Weight Usage Precautions 06-03-10-004 Mar 06
Tools - A/C Leak Detector Maintenance Kit Availability 431218A Mar 95
Tools - Introduction Of The Fuel Injector Tester 316501R Jun 93
Tools - Released for CS Generator Diagnosis 83-64-09 Mar 98
Tools - Revised Injector Tester 93631 Mar 93
Tools - Use of Non OE Brake Lathe Cutting Tips 90511 Jun 90
Updated Battery Replacement Catalog Numbers 636401 Feb 96
Vehicle - AC Delco Locator Service, Electronics Exchange 588302A Jul 95
Vehicle - Past Model Warranty Claims Processing 87WA12 Jun 87
Vehicle - Use of a Diagnostic Worksheet 580101 Jun 95
VIN Plate - Replacement Policy and Procedure 83-01-14 Mar 98
Warranty - 6/60 Powertrain Coverage Transfers 88WA16 Dec 88
Warranty - Claim Deductible On Special Policies 88WA2 Oct 87
Warranty - Claim Processing 310503C Dec 96
Warranty - Claims Processing 310503A Jan 95
Warranty - Claims Processing Tips 88WA3 Dec 87
Warranty - Claims Submission 06-00-89-054 Nov 06
Warranty - Corporate Parts Return Program 400501 Jul 94
Warranty - Crediting End of Month Accounting 88WA5A Feb 88
Warranty - Damage Notations On Carrier Delivery Receipts 88WA14 Aug 88
Warranty - Engine Coolant Substitute Caution 89SM3 Dec 88
Warranty - Enhanced Sublet Repair Policy 72-05-14 Jan 98
Warranty - GM Dealer Empowerment Program 72-05-09 Feb 98
Warranty - GM Dealer Parts Procurement 99-00-84-021B Apr 00
Warranty - Goodwrench® Service Lifetime Service Guarantee 68-05-03 Jun 96
Warranty - New Vehicle/Replacement Battery 82-05-01 Feb 98
Warranty - Notice of Delayed Start Process 86-05-02 Dec 98
Warranty - OE Chrome Plated Aluminum Wheel ID 99-03-10-102 Jun 99
Warranty - Overlap of Predelivery Operation Z7000 88WA4 Dec 87
Warranty - Owner Reimbursement Processing 88WA6A Aug 88
Warranty - Owner Reimbursements 88WA6 Mar 88
Warranty - Parts Warranty Special Claims B and C 80-05-03 Aug 98
Warranty - Proper Diagnostics and Part Replacement 88SM8 Aug 88
Warranty - Rail Dust Removal & Chemical Spotting Labor 72-05-11 Dec 97
Warranty - Recycled Engine Coolant Policy 310504 Feb 94
Warranty - Repair and Claims Procedures 600503 Jan 97
Warranty - Repair/Replace Policies & Procedures 72-05-13 Jan 98
Warranty - Request for Wholesale Authorization 82-05-02 May 98
Warranty - Required Claim Submission Procedures 620504 Apr 97
Warranty - Tire Company Warranty Assistance Programs 9234 Jan 92
Warranty Information Network System - Stage 2 570502 Jun 95
Warranty Inquiry System 82-05-05 May 98
Webasto Sunroof System - Information Hotline 431018A May 94
Wheels (Aluminum) - Coated Balance Weight Usage 92313 Mar 92
Wheels (Steel) - Proper Changing Procedure 92316 Jun 92
Wheels - Aluminum Wheel Refinishing Recommendations 99-08-51-007C Jun 06
Wheels - Cast Aluminum Wheel Porosity Repairs 8937 Jan 89
Wheels - Changing Procedures/Precautions 06-03-10-010 Sep 06
Wheels - Chrome Wheel Brake Dust Accumulation/Pitting 04-03-10-012B Feb 08
Wheels - Coated Weights For Aluminum Wheels 88317 Mar 88
Wheels - Installation of Aftermarket Styled Wheels 88SM6 Jun 88
Wheels - Sealing Leaking Cast Aluminum 393504 Jul 93
Wheels Chrome Wheel Chemical Staining/Pitting/Corrosion 00-03-10-002D Aug 06
Wheels/Tires - Accessory Wheel & Tire Information 08-03-10-004A Jul 09
Wheels/Tires - Chrome/Steel Valve Stem Cap Precautions 08-03-10-005A Mar 09
Wheels/Tires - Low Tire Pressure 05-03-10-003D May 09
Wheels/Tires - OE Tire/Wheel Characteristics 03-03-10-007E Aug 09
Wheels/Tires - Tire Puncture Repair Procedures 04-03-10-001E Mar 09
Wheels/Tires - Upsized Wheel/Tire Characteristics 05-03-10-005D Sep 08
Windshield - Two-Part Urethane Adhesive For Installation 73-10-54 May 97
Wiper Blades - Chatter on Windshield 91108 Nov 90
Wipers - Performance/Cleaning Instructions/Maintenance 06-08-43-003A Jun 07
Post by: GTRS Fiero on December 24, 2018, 06:10:12 pm
All Fieros use the same A/C condenser. No other cars used an identical condenser. Aftermarket replacements are available from conventional parts suppliers such as The Fiero Store, NAPA, AC-direct.com, and Rock Auto (rockauto.com). The OEM part number is 3050988 and the AC Delco part number is 15-6509. Depending on where you shop, the price is $140 to $270, so look around.
Post by: GTRS Fiero on December 24, 2018, 06:11:06 pm
A/C compressors can be rebuilt, exchanged for equivalent re-manufactured units, or purchased new. While new is more expensive than used, we recommend new since it is difficult to determine the quality of a used compressor by simple inspection. Installing a used compressor only to find it is defective is not a pleasant exercise.
In a nutshell, the compressors which came stock with the Fiero are as follows:
'84-85 2.5L ---- DA6 or HR6HE
'86 2.5L ---- V5
'87-88 2.5L ---- V5
'85-87 2.8L ---- DA6
'88 2.8L ---- HR6
When purchasing a replacement compressor you will find that parts stores may not provide the exact unit that originally came with the Fiero because technology has improved, some parts are no longer available, and because of the government mandate to use R134-a refrigerant. Part numbers for replacement compressors are as follows:
'84-85 2.5L ---- GM 1136465 or AC Delco 15-20241
'86 2.5L ---- GM 1135192 or AC Delco 15-20084
'87-88 2.5L ---- GM 1135191 or AC Delco 15-20085
'85-88 2.8L ---- GM 1136478 or AC Delco 15-20248
Note that '84-85 Fieros were fitted with two different compressors in their lifetime, the DA6 with a 5.125" pulley and the HR6HE with a 5.75" pulley. The DA6 is obsolete. If you are replacing an old DA6, use the HR6 which is the part number shown above.
A good writeup with information on the compressor high/low pressure switches can be found at this link: http://www.fiero.nl/forum/Forum2/HTML/117640.html
'84-85 2.5L w/5.75" Pulley: The compressor for this Fiero is the HR6HE (Harrison Redesigned High Efficiency 6 cylinder). It is 9.3" long, 4.6" diameter and weighs 12.6 pounds. The vehicles listed below had the HR6HE as well as other compressor options, so finding a used compressor may not be as simple as finding a potential donor vehicle. In general, an exact replacement may not be necessary to achieve adequate cooling. If a compressor will fit it may be worth trying.
Pontiac Astro '85-86 2.5L
Chevy Blazer S10/Jimmy S15 '85-86 2.5L
Camaro '83-85 2.5L
Firebird '83-85 2.5L
Chevy S10/S15/Sonoma '85-86 2.5L
GM Safari '85-86 2.5L
'84-85 w/5.125" Pulley: This compressor is the DA6, unique to the '84-85 Fiero. It came with either one or two switches. If replacement is necessary the AC Delco unit listed above is suggested. In general, an exact replacement may not be necessary to achieve adequate cooling. If a compressor will fit it may be worth trying.
'86 2.5L: This A/C compressor is the GM V5 and is unique to the '86 2.5L Fiero. The uniqueness is in the combination of built-in switches and pulley. The switch on the rear of the compressor is plugged and it has a 4.93" pulley. (Some sources say the pulley is 5.125".) If replacement is necessary the AC Delco unit listed above is suggested. In general, an exact replacement may not be necessary to achieve adequate cooling. If a compressor will fit it may be worth trying.
'87-88 2.5L: This compressor is the GM V5 and is unique to the '87-88 2.5L Fiero. It has a 4.29" pulley (some sources say 4.33") and one switch in the rear of the compressor. The following compressors may be worth trying in the '87-88 2.5L Fiero by changing the pulley, clutch, and switches as necessary. Some of the donor compressors may have a plug in place of one switch. In general, an exact replacement may not be necessary to achieve adequate cooling. If a compressor will fit it may be worth trying.
If you want to convert the V5 compressor to R134a, note that it has a control valve on the side which should be changed to suit the new refrigerant. The valve can be obtained from a number of sources, notable from A/Ction Air (action-ac.com), their part number 31-55302.
Chevy Beretta '87-89 2.0L
Chevy Beretta '90-91 2.2L
Chevy Cavalier '87-89 2.0L
Chevy Cavalier '90-91 2.2L O-ring on suction port
Buick Century '93 2.2L
Olds Ciera '93 2.2L
Chevy Corsica '87-89 2.0L
Olds Firenza '87 2.0L w/ OHC
Olds Firenza '88 w/o OHC
Buick Skyhawk '87-88 w/o OHC
Pontiac Tempest '87-89 2.0L
Pontiac Tempest '90-91 2.2L
'85-87 2.8L: There is some confusion on our part about the compressor for these Fieros. The Hollander manuals say the compressor is the HR6HE (Harrison Redesigned High Efficiency 6 cylinder). The Pontiac "22P" manual refers to the compressor as the Harrison "DA6" (Downsized Axial 6 cylinder) and we believe the latter to be correct for the factory-installed unit. Our research indicates the exterior of the two compressors is identical. Our belief is the HR6HE is a recommended upgrade. The DA6 compressor has two electrical connections on the back end. Note that the DA6 is not considered a good candidate for conversion to R134-a refrigerant, probably because of the higher pressures encountered.
The vehicles listed below are from Hollander and are in reference to the HR6HE compressor. While the compressors originally in the cars below were probably not the HR6HE, odds are they had the same original compressor as the Fiero. Finding a compressor may not be as simple as finding a potential donor vehicle. In general, an exact replacement may not be necessary to achieve adequate cooling. If a compressor will fit it may be worth trying. Compressors from other Fieros are good candidates for swaps, but brackets my have to be transferred along with the compressor.
Pontiac Astro '85-86 2.5L
Chevy Blazer S10/Jimmy S15 '85-86 2.5L
Camaro '83-85 2.5L
Firebird '83-85 2.5L
GMC S10/S15/Sonoma '85-86 2.5L
GMC Safari '85-86 2.5L
'88 2.8L: The compressor for this Fiero is the Harrison HR6 (Harrison Redesigned internally DA6) with a 5.4" pulley. It is physically identical to the DA6 with two electrical connections. It is a good candidate for conversion to R134-a refrigerant. The AC Delco part number for the current replacement compressor is shown above. Cars which had the same original compressor are:
Pontiac Grand Am '87-89 2.0L
Buick Skyhawk '86 1.8L VIN "J" (8th digit)
Buick Skyhawk '87 OHC, turbocharged
Pontiac Sunbird '86-89 turbocharged
A/C Dryer (Accumulator), '84: We have no GM part number for the '84 dryer but have been advised by Fiero owner Bill Strickland that AutoZone and Parts America carry a replacement. It is Ready-Aire 4370N. The '84 dryer is the same size and appearance as later years. However the inlet and outlet lines are 180 degrees apart and the low pressure cutout port is in the location of the main inlet for dryers used in '85-88. The dryer is available at AutoZone for $12 as of August 2008.
A/C Dryer (Accumulator), '85-88: The original GM part number for the '85-88 dryer is 3059313 but this has been superceded by part number 2724666. An aftermarket version is Factory Air/Four Seasons part number 33181 typically available at Pep Boys and similar parts stores. AC Delco part numbers which also work are 15-1392 and 15-1670. AutoZone and Parts America have a replacement under their part number 4392N by Ready-Aire. Old dryers should not be re-used since their ability to remove moisture is depleted.
Post by: GTRS Fiero on December 24, 2018, 06:11:26 pm
If you do not know which alternator came with your Fiero, check the Option Codes sticker on the left front fender well next to the spare tire. Then look up your alternator type on the Option Codes page of this web site.
We do not recommend installing an unknown used alternator except as a matter of expediency. With today's improved electronics we suggest you get the alternator rebuilt by a professional rebuilder using an upgraded diode set. (Remanufactured alternators from parts suppliers are typically built to minimize cost, not optimize quality.) We have had 145 amp diode sets installed in two Fiero alternators at a cost of $75 each. Results have been very satisfactory.
Repairing an alternator can be done at home if you are handy. "How To" procedures are prolific on the Web; a Google search will reveal dozens of good tutorials and we have a good article on alternators in the Tech Articles section of this site. The most frequent alternator failure is the "diode trio". Rockauto.com Sells the diode trio for under $4. The part is #D11, Standard brand.
'84-87 66 Amp: This alternator was used in both 2.5L and 2.8L engines. The cars listed below had other alternator choices besides the 66 amp, so an exact match is not guaranteed. Alternators of higher capacity can be used in place of the 66 amp if they fit.
Pontiac 2000 '83-84 1.8L
Pontiac Pontiac 6000 '83 2.5L
Pontiac 6000 '83 2.8L VIN "X" (8th digit)
Pontiac 6000 '83 4.3L
Pontiac 6000 '84 2.5L
Pontiac 6000 '84 2.8L VIN "X" (8th digit)
Pontiac 6000 '85 2.5L
Pontiac 6000 '85 2.8L
Pontiac 6000 '85 4.3L Diesel
Pontiac 6000 '86 2.5L
Pontiac 6000 '86 2.8L
Chevy Blazer S10/GM Jimmy S15 '86 2.0L
Chevy Blazer S10/GM Jimmy S15 '86 2.8L
Blazer/GM Jimmy (full size) '83-86
Buick '83
Camaro '83-86
Cavalier '85-86 2.5L
Chevy Celebrity '83-86
Buick Century '83-86
Chevy Forward Control '83
Chevy Forward Control '84 Gasoline or Diesel
Chevy Forward Control '85 Diesel
Chevy Forward Control '85-86 Gasoline
Chevy Forward Control '87-90 Gasoline
Chevy Passenger '83
Chevy Passenger '84-85 Gasoline
Chevy Pickup Truck '83
Chevy Pickup Truck '84 Diesel
Chevy Pickup Truck '84-86 Gasoline
Chevy Pickup Truck '87-88 Gasoline
Chevy Van '83
Chevy Van '84 Gasoline or Diesel
Chevy Van '85 Diesel
Chevy Van '85-86 Gasoline
Chevy Van '87-90 Gasoline
Olds Ciera '83-85
Olds Ciera '86 2.5L
Olds Ciera '86 2.8L
Chevy Citation '83-85
Olds Cutlass '83 Diesel, 8 cyl. w/o tach
Olds Cutlass '83 Gasoline
Firebird '83-86
Olds Firenza '83-86 1.8L
Olds Firenza '85-86 2.8L
GMC Forward Control '83
GMC Forward Control '84 Gasoline or Diesel
GMC Forward Control '85 Diesel
GMC Forward Control '85-86 Gasoline
GMC Forward Control '87-90 Gasoline
GMC Pickup Truck '83
GMC Pickup Truck '84 Diesel
GMC Pickup Truck '84-86 Gasoline
GMC Pickup Truck '87-88 Gasoline
GMC Van '83
GMC Van '84 Gasoline or Diesel
GMC Van '85 Diesel
GMC Van '85-86 Gasoline
GMC Van '87-90 Gasoline
Pontiac Grand Prix '83
Chevy Malibu '83 5.7L Diesel
Chevy Malibu '85-87
Chevy Monte Carlo '83 5.7L Diesel
Chevy Monte Carlo '85-87
Olds '83
Olds '84 3.8L
Olds Omega '83-84
Pontiac Phoenix '83-84
Pontiac '83
Pontiac '84-85
Pontiac '86
Olds Regal '83 Except 6 cyl. diesel
Olds Regal '86-87 5.0L
S10/S15/GM Sonoma '83-84 2.0L
S10/S15/GM Sonoma '83-85 2.8L
S10/S15/GM Sonoma '84 2.2L Diesel
S10/S15/GM Sonoma '83 2.0L Diesel w/o tach
Buick Skyhawk '83-86 1.8L
Chevy Sprint (GMC) '83
Chevy Sprint (GMC) '85-87
Chevy Suburban '83
Chevy Suburban '84 Diesel
Chevy Suburban '84-86 Gasoline
Chevy Suburban '87-88 Gasoline
Pontiac Sunbird '85-88 1.8L
'84-87 94 Amp: This alternator was used in both 2.5L and 2.8L engines. The cars listed below had other alternator choices besides the 94 amp, so an exact match is not guaranteed. Alternators of higher capacity can be used in place of the 94 amp if they fit.
Pontiac 2000 '84 1.8L
Pontiac 6000 '84 2.5L
Pontiac 6000 '84 2.8L VIN "X" (8th digit)
Pontiac 6000 '84 4.3L Except California
Pontiac 6000 '85 2.5L
Pontiac 6000 '85 2.8L VIN "X" (8th digit)
Pontiac 6000 '85 2.5L
Pontiac 6000 '85 2.8L
Pontiac 6000 '85 4.3L Diesel w/o tach
Pontiac 6000 '86 2.5L
Pontiac 6000 '86 2.8L
Pontiac Astro '85
Chevy Blazer S10/GM Jimmy S15 '84 1.9L
Blazer/GM Jimmy (full size) '87-88 Gasoline
Buick '84-85 3.8L
Buick '84 5.0L w/o Air Conditioner
Olds Calais '85
Camaro '83-86
Cavalier '85-86
Chevy Celebrity '83-86 Gasoline
Buick Century '84 Diesel, except California
Buick Century '84-86 Gasoline
Chevy Forward Control '86 Gasoline
Chevy Forward Control '87-90
Chevy Passenger '85-88 Gasoline
Chevy Pickup Truck '85-90 Gasoline
Chevy Van '87-90
Olds Ciera '84 Except California
Olds Ciera '85 Gasoline
Olds Ciera '86 2.8L
Cadillac Cimarron '85-86
Chevy Citation '85
Olds Cutlass '87 5.0L
Firebird '83-86
Olds Firenza '85-86 2.8L
GMC Forward Control '86 Gasoline
GMC Forward Control '87-90
GMC Passenger '85-88 Gasoline
GMC Pickup Truck '85-90 Gasoline
GMC Van '87-90
Pontiac Grand Am '85
Pontiac Grand Prix '84-87
Chevy Malibu '85-87
Chevy Monte Carlo '85-88
Pontiac Phoenix '84
Pontiac '84-85 Gasoline
Pontiac '86
Olds Regal '84-85 Gasoline
Olds Regal '86-87 5.0L
Olds Riviera '84-85 6 cylinder
S10/S15/GM Sonoma '84-85 1.9L
Pontiac Safari (GMC) '85
Buick Skyhawk '84-86 1.8L
Buick Skylark '84-85
Buick Somerset '85
Chevy Sprint (GMC) '85-87
Chevy Suburban '85 Gasoline
Chevy Suburban '87-90
Pontiac Sunbird '85-86 1.8L
'87 85 Amp: This alternator was used in both 2.5L and 2.8L engines in 1987 but is unique to the Fiero. If the alternator needs to be replaced, use the 94 amp (above), get the original rebuilt, or obtain one from a donor Fiero. The 85 amp and 100 amp alternators from the '88 Fiero will fit the '87.
'88 2.5L 85 Amp: This alternator is unique to the Fiero. If the alternator needs to be replaced, use the 94 amp (above), get the original rebuilt, or obtain one from a donor '87-88 Fiero. The 100 amp alternator from the '88 Fiero will fit.
'88 2.5L 100 Amp: This alternator is unique to the '88 2.5L Fiero. If the alternator needs to be replaced, rebuild the original or get one from a donor '88 2.5L Fiero.
'88 2.8L 85 Amp: This alternator is unique to the '88 2.8L Fiero. If the alternator needs to be replaced, rebuild the original or get one from a donor '88 2.8L Fiero. The 100 amp alternator from the '88 2.8L will fit.
'88 2.8L 100 Amp: This alternator is unique to the '88 2.8L Fiero. If the alternator needs to be replaced, rebuild the original or get one from a donor '88 2.8L Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:11:46 pm
The Fiero antenna is a fixed-mount wire that is common to many GM vehicles of the same vintage. The antenna base is threaded making it simple to remove/install. Replacement antennas for all years can be found at auto parts stores under the "Champ" brand, part number 9-1518. Used antennas are readily available in salvage yards.
Electric antennas can be mounted to the Fiero with a little work. An example is at www.fierosails.com/ElectricAntenna.html
Post by: GTRS Fiero on December 24, 2018, 06:12:10 pm
Axle shafts from donor cars can be used in a Fiero only if transmissions are similar. That is, axles from a manual transmission cannot be used in an automatic transmission and vice-versa.
'84 Manual Transmission: The axles in the '84 Fiero were unique and not used in any other car. Replacements available only from donor Fieros or specialty shops. Left and right sides will not swap.
'84 Automatic Transmission: Same as '84 manual transmission.
'85-88 Manual Transmission, Right Axle:
Pontiac 6000 '87 100 mm B.C., 5-spd, right
Pontiac 6000 '88 100 mm B.C., 5-spd, right, early models
Chevy Celebrity '87 100 mm B.C., 5-spd, right
Chevy Celebrity '88 100 mm B.C., 5-spd, right, early models
'85-88 Manual Transmission, Left Axle:
Pontiac 6000 '87 100 mm B.C., 5-spd, left
Pontiac 6000 '88 100 mm B.C., 5-spd, left, early models
Chevy Beretta '87 2.8L left, outer assembly
Chevy Beretta '88 2.8L left, outer assembly, early models
Chevy Cavalier '85-86 2.8L manual trans, left
Chevy Cavalier '87 2.8L manual trans, left, outer assembly
Chevy Cavalier '88 2.8L man.trans, Y-shaped tri-pot, left, outer assembly
Chevy Celebrity '87 100 mm B.C., 5-spd, left
Chevy Celebrity '88 100 mm B.C., 5-spd, left, early models
Cadillac Cimmaron '85-86 4-spd, left
Cadillac Cimmaron '87 5-spd, left, outer assembly
Cadillac Cimmaron '88 5-spd, left, outer assembly, early models
Chevy Corsica '87 2.8L manual trans, left, outer assembly
Chevy Corsica '88 2.8L manual trans, left, outer assembly, early models
Olds Firenza '85 4-spd, left
Olds Firenza '86 2.8L 4-spd, left
'85-88 Automatic Transmission, Right Axle:
Pontiac 6000 '85 2.8L 100 mm B.C., 3-spd, right
Pontiac 6000 '85 4.3L 100 mm B.C., 3-spd, diesel, right
Pontiac 6000 '86-87 2.8L 100 mm B.C., 3-spd, right
Pontiac 6000 '89 2.5L 100 mm B.C., without overdrive, right
Chevy Celebrity '85 2.8L 100 mm B.C., 3-spd, right
Chevy Celebrity '85 4.3L 100 mm B.C., 3-spd, diesel, right
Chevy Celebrity '86-87 2.8L 100 mm B.C., 3-spd, right
Chevy Celebrity '89 2.5L 100 mm B.C., without overdrive, right
Buick Century '87 2.8L 100 mm B.C., 3-spd, right
Buick Century '89 2.5L 100 mm B.C., 3-spd, right
Olds Cutlass Ciera '87 2.8L 100 mm B.C., 3-spd, right
Olds Cutlass Ciera '89 2.5L 100 mm B.C., 3-spd, right
Chevy Citation '85 2.8L right
Buick Skylark '85 6-cylinder, right, late models
'85-88 Automatic Transmission, Left Axle:
Pontiac 6000 '85-87 100 mm B.C., 3-spd, left
Pontiac 6000 '86-87 2.8L 100 mm B.C., 3-spd, left
Pontiac 6000 '88 2.5L 100 mm B.C., 3-spd, left
Pontiac 6000 '89 2.5L 100 mm B.C., without overdrive, left
Olds Calais '85-88 left
Olds Calais '89-90 left, without 16" wheels
Chevy Celebrity '85-87 100 mm B.C., 3-spd, left
Chevy Celebrity '88 2.5L 100 mm B.C., 3-spd, left
Chevy Celebrity '89 2.5L 100 mm B.C., without overdrive, left
Buick Century '85-86 100 mm B.C., left
Buick Century '87 100 mm B.C., 3-spd, left
Buick Century '88-89 2.5L 100 mm B.C., 3-spd, left
Olds Cutlass Ciera '89 2.5L 100 mm B.C., 3-spd, left
Olds Cutlass Ciera '85 100 mm B.C., 3-spd, left
Olds Cutlass Ciera '86 100 mm B.C., left
Olds Cutlass Ciera '87 100 mm B.C., 3-spd, left
Olds Cutlass Ciera '88-89 2.5L 100 mm B.C., 3-spd, left
Chevy Citation '85 left
Pontiac Grand Am '85-88 left
Pontiac Grand Am '89-90 left, without 16" wheels
Buick Skylark '85 4-cyl, left
Buick Skylark '86-90 left
Buick Somerset '85-87 left
CV BOOTS: We have no cross-vehicle information for the Fiero CV boots but it is reasonable to assume that if vehicles have the same axles (see above) they will have the same CV boots. Since we cannot confirm this suspicion we have listed part numbers for aftermarket CV boots below:
'84 early auto trans, inner Dorman 614-004
'84 early auto trans, outer Dorman 614-001
'84 early manual trans, inner Dorman 614-004
'84 early manual trans, outer Dorman 614-003
'84 late auto trans, inner Dorman 614-002
'84 late auto trans, outer Dorman 614-001
'84 late manual trans, inner Dorman 614-004
'84 late manual trans, outer Dorman 614-003
'85-88 auto trans, inner Dorman 614-002
'85-88 auto trans, outer Dorman 614-001
'85-88 manual trans, inner Dorman 614-004
'85-88 manual trans, outer Dorman 614-003
Post by: GTRS Fiero on December 24, 2018, 06:13:12 pm
For a long time we wanted an electric antenna on our '88 GT to make it easier to use a car cover. However we were told many times that an electric antenna would not fit. When we found a good electric antenna in a salvage yard we decided to try installing it despite the warnings. To our surprise the antenna fit rather easily. Pictures below show the installation.
Antenna fairing with tip of antenna showing.
There are a few points worth noting about the installation:
(1) The electric antenna is from a 1996 Mazda 626. There is nothing special about this antenna but its bottom mounting feature is convenient. As far as we can determine no separate antenna relay is required. We could not find a relay on the donor car and our antenna works fine without one. We belive the antenna motor is turned on/off at its lower/upper limits via solid-state current sensing, much like the headlight motors in the '87-88 Fiero.
If you want to try an electric antenna and can't find a Mazda 626, a very similar antenna was seen in a '94 Nissan Altima. It looks identical to the Mazda except for the antenna cable attachment. It also appears other '90s Japanese cars use similar antennas but we have not pulled them to compare. The antenna from a '96 Olds Cutlass Supreme seems to be an even better choice. It looks smaller but has the same bottom mounting bosses. It also does not require an antenna relay. A nice unit; wish we had seen it first!
(2) In addition to the coaxial cable to receive signals, there are three wires from the antenna assembly which must be connected: a ground, +12 volts (available at all times), and +12 volts from the radio. This latter +12 volts turns on and off with the radio. Most factory radios have this voltage available specifically for electric antennas. When the radio is turned on, the antenna raises. When the radio is off, the antenna lowers. If you have a radio without the switched voltage it would be simple to find switched +12 volts somewhere in the car wiring. That would mean the antenna would be up whenever the ignition is on as opposed to just when the radio is on.
(3) The telescoping antenna collapses inside a metal tube attached to the antenna motor housing. The tube has a short length of coaxial antenna cable with a female plug-in connector on the end which feeds a signal to the radio. This requires a mating male connector on the coaxial cable from the Fiero radio. We found the male connector on a Mazda but also saw it in the salvage yard on Hondas and Toyotas.
(4) The bracket for mounting the antenna is home-made from 1/8" thick aluminum because that's what we had on hand. The bracket is held in place by one of the door bolt hinges; no drilling into the car body is required. There is a dimensioned drawing of the bracket in the last photo.
(5) The fairing where the antenna exits the fender is from an Olds Cutlass Ciera. The fairing is found on the '86-88 Olds Cutlass Ciera and Ciera station wagon, and on the '86-'93 Buick Century. The fairing is three pieces, a chromed metal bezel, a gasket which installs between the bezel and fender, and a plastic tube that inserts vertically in the bezel. (We painted all parts red.) The fairing assembly must be fastened to the car body or it will fall out. Instead of making a hole in the slanted portion of the Fiero body to mount the fairing, we attached a scrap of 1/8" thick aluminum to the body. Then we mounted everything and drilled a hole in the aluminum to fix the fairing in exactly the right spot.
Other antenna fairings should also work. We saw possibilities on an '88 Cadillac Cimarron, an Audi, and some Japanese cars. It is also possible to use a fairing that extends above the fender like the chimmney on a roof.
(6) The antenna system fits under the fender perfectly but there is no wiggle room. The length of the antenna tube was shortened 0.5" to avoid interference between the top of the tube and the inside of the fender. Some protrusions were ground off the antenna tube to avoid interference with the inner surface of the fender. The antenna retaining nut (it screws to the top of the antenna tube) was ground flat on one side for the same reason.
(7) Wiring enters the car interior via a weatherproof rubber grommet which is from an '86 Olds Cutlass Ciera. It has passages for the antenna cable and three control wires. It is likely that any car with an electric antenna on the front fender will have a similar grommet; finding one in a salvage yard should be easy. The antenna cable through-hole in the Fiero had to be enlarged for the new grommet.
We will happily answer questions at the e-mail address below.
Paul McKibben
Norcross, Georgia
pmckibben@yahoo.com
Copyright December, 2004, 2009
Antenna mounted in place.
Antenna just clears the fender well & door.
Antenna mounting bracket, top.
Antenna mounting bracket, bottom.
A plumb bob was used to locate where to cut the hole in the fender. First the antenna was installed in its final location with the fender removed. A plumb bob was located precisely over the antenna and the wheels were blocked to insure the car did not move at all.
The antenna was removed WITHOUT moving the plumb bob, the fender installed, and the plumb bob used to locate the template for cutting the hole. This worked perfectly.
This is the through-hole grommet in the car body.
This is the tag on the antenna:
Post by: GTRS Fiero on December 24, 2018, 06:25:48 pm
BLOWER MOTOR: All Fieros used the same blower motor for the heating and air conditioning system. This motor is found in GM cars listed below and is readily available aftermarket.
Buick Electra '85
Buick Park Avenue '85
Buick Skyhawk '77 integral A/C, late in model year
Buick Skyhawk '78-80 integral A/C
Cadillac Coupe deVille '85 front wheel drive
Cadillac Sedan deVille '85 front wheel drive
Chevy Monza '77 integral A/C, late in model year
Chevy Monza '78-80 integral A/C
Olds Ninety-Eight '85
Olds Starfire '77 integral A/C, late in model year
Olds Starfire '78-80 integral A/C
Pontiac Astre '77 integral A/C, late in model year
Pontiac Sunbird '77 integral A/C, late in model year
Pontiac Sunbird '78-80 integral A/C
Post by: GTRS Fiero on December 24, 2018, 06:26:05 pm
The body panels are unique to the Fiero and were not used on any other cars. Outer '84 door panels attach differently and do not interchange with other year Fieros. All other body panels will swap, although the deck lid in '84 is a different style from other years.
Front and rear fascias vary with models. The '86-88 GT and all other '88s had round trim on the "belt line" and other years had ribbed trim. The trim piece is molded into the front and rear fascias. Use of a round-trim fascia on a ribbed-trim car is feasible but may look odd.
The '84 has an entirely different door skin (cannot be added to later doors) and dew wipe (not available).
Door skin compatibility is the same '85-'88.
Rocker panels interchange among all years although some vary depending on model. For example, one style rocker panel was used on 1984 Indy, 1985 GT/SE, 1987 SE, and the 1986-88 GT. Different rocker panels were used on the Coupes and Formula.
The "aero molding" or "ground effects" panels were used on the Indy, GTs, and '87 SE models. These panels swap among all years and may be installed on cars which were not so equipped from the factory. Mounting holes are required in the body panels to accommodate the ground effects panels.
The wing or spoiler on the Fiero is blow-molded Bexley resin made in two pieces and glued together. Spoiler cracks or breaks should be repaired with flexible epoxies such as those used for RIM or R-RIM (see below). Punctures or gouges should be repaired with epoxy fiberglass resin and glass cloth.
GM called the Fiero body panels "Enduraflex". There is no material known as "Enduraflex". This is a marketing term. Four different types of reinforced composite plastic are used in Fiero body panels:
SMC Sheet Molded Compound was used for the hood, roof, rear upper quarter, and rear decklid.
RRIM Reinforced Reaction Injection Molded urethane was used for fenders, door panels, and lower rear quarters. The rear lowers were later changed to injection molded nylon.
RIM Reaction Injected Molded urethane was used for front and rear fascias.
TPO Thermoplastic Olefin was used for rocker panels.
Bexley Resin Blow-Molded by DuPont This material (not fiberglass) was used for the spoiler or "wing" on all Fieros as far as we know. The supports are made of TPO.
Conventional "Bondo" (polyester resin) should not be used to repair any Fiero body panel. Repair products should specifically state they are compatible with the body panel material. I.e.: "Suitable for SMC repairs."
Any competent body shop can handle repairs to the Fiero body panels. Shops which specialize in body repair for Saturns would be particularly capable since the Saturn uses similar body materials.
Since new body panels rarely turn up on the market, the best source for them is a donor vehicle. Check the "Parts Sources" page for suppliers.
Engine Vents: The deck lid vents on the '84 Fiero were made of magnesium and were spectacular when they caught fire! Subsequent years used aluminum.
For those interested, the body panels of the Fiero were made in the following locations:
Front Fascia - RRIM supplied by GM Canada
Hood - SMC supplied by General Tire and Rubber
Headlamp Doors - SMC supplied by GTR
Front Fenders - RRIM supplied by Oldsmobile
Roof - SMC supplied by Premix
Door Panel - RRIM supplied by Oldsmobile
Rocker Panels - TPO supplied by G.P. Plastics
Panel, front of Rear Wheel - R. RIM supplied by Oldsmobile
Rear Quarter - SMC supplied by BUDD
Rear Deck Lid - SMC supplied by BUDD
Rear Fascia - RRIM supplied by Guide Division
Wing - Bexley Resin blow-molded by DuPont
Post by: GTRS Fiero on December 24, 2018, 06:26:22 pm
BRAKE ROTORS, FRONT
'84-87 The front brake rotors are unique to the '84-87 Fiero and were not used in other cars. OEM and aftermarket replacements are readily available.
'88 The front brake rotors are unique to the '88 Fiero and were not used in other cars. GM and aftermarket rotors are available but tend to be expensive. It may be cost effective to move '88 rear rotors to the front. See Brake Rotors, Rear, '88.
BRAKE ROTORS, REAR
'84-87 The rear brake rotors are unique to the '84-87 Fiero and were not used in other cars. OEM and aftermarket replacements are readily available.
If you have an '84-87 Fiero, you can use the front rotor and caliper from a late '80s Grand Am. If you do that you have no parking brake. You can use the rear caliper from an '80-85 Seville with the Grand Am rotor and have a parking brake, but you must fabricate a mount for it.
'88 The rear brake rotors are unique to the '88 Fiero and were not used in other cars. OEM and aftermarket rotors are available but can be hard to find and expensive. Rear '88 rotors can be replaced by rotors from a '93 Cavalier with 2.2 SFI engine at a cost of under $20 per rotor. The Cavalier rotors are slightly thicker than Fiero rotors and may require the brake pads to be reduced in thickness. The Cavalier rotors will not fit the front hub in the '88 Fiero, only the rear.
We have read but cannot confirm that brake rotors for the 1988 Corvette will fit the rear of the '88 Fiero.
HUB, FRONT
'88 The front hub in the '88 Fiero contains the front wheel bearing and is made as a sealed assembly which is not serviceable. This hub is no longer available from GM but new units can be obtained from fierostore.com or rodneydickman.com.
HUB, REAR
'84-88 The rear hub identification number is 513-011K. The following vehicles had the same hubs, but note they are front hubs:
Pontiac 6000 '82 front
Pontiac 6000 '83-89 front, 100 mm B.C.
Chevy Celebrity '82 front
Chevy Celebrity '83-89 front, 100 mm B.C.
Buick Century '82 front
Buick Century '83-89 front, 100 mm B.C.
Olds Ciera '82 front
Olds Ciera '83-88 front, 100 mm B.C.
Olds Ciera '89 front, 100 mm B.C., Coupe & Sedan
Chevy Citation '80-85 front
Olds Omega '80-84 front
Pontiac Phoenix '80-84 front
Buick Skylark '80-85 front
CALIPERS, FRONT
'84 The front calipers in the '84 Fiero are unique and not used in other cars. While not identical, front calipers from '85-87 Fieros will fit. Rebuild kits are available.
'85-87 The front calipers in the '85-87 Fiero are unique and not used in other cars. While not identical, front calipers from the '84 Fiero will fit. Rebuild kits are available.
'88 The front calipers in the '88 Fiero are unique and not used in other cars. Rebuild kits are available.
NOTE: Cars with same front caliper pistons (that's pistons only, not calipers) as '88 Fiero:
'88-93 Pontiac Pontiac LeMans, Pontiac Tempest, and GTO
'88-98 Toyota Tercel except ABS equipped
'88-90 Toyota Tercel
'82-89 Toyota Tercel except Aisin caliper from 8/82
'96-98 Toyota Paseo except ABS equipped
'86-90 Nissan Pulsar twin cam diesel, front brakes
Nissan Sentra, Nissan NX 1600, and Nissan 2000 Coupe have same front caliper pistons as '88 Fiero as follows:
'91-94 2.0L engine
'86-90 S/W
'86-88 Sedan, diesel
Calipers can be rebuilt by calipersonline.com
CALIPERS, REAR
'84-87 The rear calipers in the '84-87 Fiero are unique and not used in other cars. Rebuild kits are available.
'88 The rear calipers in the '88 Fiero were used only on one other car, the '88-90 Pontiac 6000 AWD. Rebuild kits are available. AC Delco part number for rear calipers is 18R767 right rear and 18R768 left
Calipers can be rebuilt by calipersonline.com
NOTE: Car with same rear caliper pistons (that's pistons only, not calipers) as '85-87 Fiero: '84-89 Pontiac STE with rear disc brakes.
DUST CAPS, FRONT WHEEL
'84-88 The dust caps cover the nut which retains the front wheel to the axle. Replacements are 1-9/16" diameter and fit not only GM cars but Ford, Chrysler, Toyota and VW. Aftermarket caps are made by Motormite, part number 13976
MASTER CYLINDER
'84-87 The brake master cylinder in the '84-87 Fiero is unique and not used in other cars. Rebuild kits are available.
'88 The brake master cylinder in the '88 Fiero is unique and not used in other cars. Rebuild kits are available.
MASTER CYLINDER CAP & GASKET
'84-88 Master Cylinder Cap - Help! 42041
'84-88 Master Cylinder Cap Gasket - Help! 42079
BRAKE BOOSTER
'84-86 The brake booster in the '84-86 Fiero is unique and not used in other cars.
'87 The brake booster in the '87 Fiero is unique and not used in other cars.
'88 The brake booster in the '88 Fiero is unique and not used in other cars.
BRAKE HOSES
As far as we can determine, no other cars used the same flexible brake hoses (the ones that attach to the calipers) as the Fiero. This does not seem right to us. We suspect that there are indeed other brake hoses that will fit but just have not found them. In fact Aaron Trent found that the left rear brake hose on his '86 GT can be replaced by a left front brake hose from a '92 Honda Accord. Arron had to re-use his old copper washer and banjo bolt, but it worked fine. Thanks, Aaron, for this tip. Note that the '86-88 Fieros used the same left rear brake hose, so the hose from the Honda Accord would fit these three years, not just the '86.
Some of the brake hoses in the Fiero were used more than one year. Using the GM part numbers as a basis, the following Fiero years will swap:
'84 Right front brake hose is unique
'84 Left front brake hose is unique
'84-87 Right rear brake hose is the same
'84-85 Left rear brake hose is the same
'85-88 Right front brake hose is the same
'85-87 Left front brake hose is the same
'86-88 Left rear brake hose is the same
'88 Right rear brake hose is unique
'88 Left front brake hose is unique
For the '88 Fiero (sorry we don't have info on other years), the following part numbers apply to the brake hoses:
HOSE AC DELCO # GM # WAGNER # RAYBESTOS # AUTO SPECIALTY #
Front, Left 18J668 18032379 F116843 BH38654 HB-80266
Front, Right 18J669 18032378 F116844 BH38653 HB-80267
Rear, Left 18J652 18032363 F120873 BH38638 HB-82346
Rear, Right 18J653 18032364 F120874 BH38639 HB-82347
While the above numbers are for '88, note that the '85-88 right front is the same, and '86-88 left rear is the same.
MISCELLANEOUS BRAKE PARTS
'84-88 Brake Banjo Bolt, front & rear (holds brake line to caliper) - Help! 13940
'84-88 Brake Hose Washer, front & rear - Help! 66223
'84-88 Brake Bleeder Screw, front & rear - Help! 13908
'84-87 Brake Caliper Bolts, front & rear - Help! 13892
'84-87 Brake Caliper Piston, front - Tru-Torque P7637S
'85-87 Brake Caliper Piston, left rear - Tru-Torque P7558
'85-87 Brake Caliper Piston, right rear - Tru-Torque P7559
'88 Brake Caliper Piston, front - Tru-Torque P7567S
BRAKE PEDAL
'84-88 Brake Pedal, auto trans - Pedal Up! 20713
'84-88 Brake Pedal, manual trans - Pedal Up! 20733
Post by: GTRS Fiero on December 24, 2018, 06:26:43 pm
Approximately eight bulb types cover all lamps used in the Fiero. Alternatives exist for many of the bulbs which are improvements over the originals. LED (light emitting diode) replacements are becoming popular for tail lights and turn signals but we are unaware of any that are approved by the DOT (US Department of Transportation). We have seen relacement LEDs that fit a few bulbs of cars other than the Fiero and with time we expect to see some that will fit the Fiero, too.
One location which is suitable for LED replacements is the third brake light in '85-88 Fieros. We are unaware of any aftermarket replacements at this time.
Use of LED lights for turn signals usually requires special flasher units; they are not plug & play.
Bulb Part Number
High & Low Beam Headlamp H6054 (see Note 1)
H6054ST
H6054CB, high performance halogen
H6054XV, blue halogen
X6054, halogen, extra bright, long life
H6054LL, high intensity, long life
Front Turn Signal 2057 or 2057LL (long life)
Parking Light 2057 or 2057LL
Rear Turn Signal 2057 or 2057LL
Stop Light 2057 or 2057LL
Tail Light 2057 or 2057LL
Backup Light 1156 or 1156LL
Automatic Trans Indicator 194 or 194LL (see Note 2)
Brake Warning 194 or 194LL ( " " ")
Directional Signal Indicator 194 or 194LL ( " " ")
Front Side Marker 194 or 194LL ( " " ")
High-Beam Indicator 194 or 194LL ( " " ")
License Plate 194 or 194LL ( " " ")
Rear Side Marker 194 or 194LL ( " " ")
Seat Belt Indicator 194 or 194LL ( " " ")
"Pontiac" Rear Lights (GT only) 194 or 194LL ( " " ")
Ash Tray 70
Dome Light 906
High Mount Stop Light 889 or 906
Instrument Panel - General 168, 37, 194 or 194LL (see Note 3)
Courtesy Light (foot well area) 168
Spare Tire area light 168
Trunk/Cargo Light 168 or 561
Note 1: We understand that Levine Auto Parts (http://www.levineautoparts.com/27009headlamp.html) makes a high-brightness headlamp replacement that works well on the Fiero. It is a bit pricey but reputedly is of high quality.
Note 2: We understand that #194 bulbs (2 candle power) can be replaced with #168 bulbs (3 candle power) for a little more brightness. We have not verified this swap.
Note 3: We understand that #194PC (1/2" size) are the #194 bulb with "twist-in" socket which fit the instrument panel behind the speedometer, tach, "check engine", and other warning lights.
Note 4: We understand that Xenon bulb 9732 is a direct fit for the 168 and 194 bulbs. It is a 5 watt bulb and not suitable for all Fiero applications due to heat, but it makes a suitable replacement for the side marker lights, "Pontiac" rear lights, courtesy lights, and cargo area lignt. Due to their extra heat, make sure the bulbs are not too close to anything that would be easily affected. Bulbs are available at lighting stores as well as on-line at seagulllighting.com.
Post by: GTRS Fiero on December 24, 2018, 06:27:02 pm
Since GM used both the 2.5L and 2.8L engines in many cars other than the Fiero, it is to be expected that the camshaft is also common to many cars. When replacing a camshaft we suggest new rather than used except in cases of expediency. Camshafts, including "hot" versions, are readily available from GM and aftermarket companies such as Crane and CompCams.
'84 2.5L Early: The early design camshaft has Z8F, Z8C, Z8H, Z8J, or Z8K located on the timing pointer. This cam does not use roller lifters.
Pontiac 6000 '84 2.5L
Camaro '84 2.5L
Chevy Celebrity '84 2.5L
Buick Century '84 2.5L
Olds Ciera '84 2.5L
Chevy Citation '84 2.5L
Firebird '84 2.5L
Olds Omega '84 2.5L
Pontiac Phoenix '84 2.5L
Buick Skylark '84 2.5L
'84 2.5L Late and '85-88 2.5L: The late design has XJC located on the bell housing face of the cylinder block. The cam uses roller lifters.
Pontiac 6000 '85-89 2.5L
Pontiac Astro '85-90 2.5L
Chevy Blazer S10/GM Jimmy S15 '85-88 2.5L
Camaro '85-88 2.5L
Chevy Celebrity '85-89 2.5L
Buick Century '85-89 2.5L
Olds Ciera '85-89 2.5L
Chevy Citation '85 2.5L
Firebird '85-86 2.5L
S10/S15/GM Sonoma '85-90 2.5L
S10/S15/GM Sonoma '91 2.5L VIN "E" (8th digit)
Pontiac Safari (GMC) '85-90 2.5L
Buick Skylark '85 2.5L
'85-88 2.8L: The camshaft in the '88 Fiero is equipped with a fuel pump eccentric which is not used since the car has an electric fuel pump. The list below is for camshafts with the fuel pump eccentric. See the next list for camshafts without the eccentric.
Pontiac 6000 '83-86 2.8L H.O. VIN "Z"
Pontiac 6000 '85-86 2.8L EFI
Pontiac 6000 '87-89 2.8L
Chevrolet Beretta '87-89 2.8L
Chevy Blazer S10/GM Jimmy S15 '86-89 2.8L
Camaro '85-89 2.8L
Cavalier '85-89 2.8L
Chevy Celebrity '84 2.8L H.O. VIN "Z"
Chevy Celebrity '85-86 2.8L EFI
Chevy Celebrity '87-89 2.8L
Buick Century '84 2.8L H.O. VIN "Z"
Buick Century '85 2.8L EFI
Buick Century '87-89 2.8L
Olds Ciera '86 2.8L EFI
Olds Ciera '87-89 2.8L
Cadillac Cimarron '85-88 2.8L
Chevy Citation '81-84 2.8L H.O. VIN "Z"
Chevy Citation '85 2.8L EFI
Chevy Corsica '87-89 2.8L
Olds Cutlass '88-89 2.8L
Olds Cutlass '89 3.1L
Firebird '83-84 2.8L H.O. VIN "L"
Firebird '85-89 2.8L
Olds Firenza '85-87 2.8L
Pontiac Grand Prix '88-89 2.8L
Olds Omega '82-84 2.8L H.O. VIN "Z"
Pontiac Phoenix '82-84 2.8L H.O. VIN "Z"
Olds Regal '88-89 2.8L
S10/S15/GM Sonoma '86-89 2.8L
Buick Skylark '82-84 2.8L H.O. VIN "Z"
Buick Skylark '85 2.8L EFI
Pontiac Tempest '87-89 2.8L
Isuzu Trooper '89 2.8L
'85-88 2.8L: The camshaft in the '88 Fiero is equipped with a fuel pump eccentric which is not used since the car has an electric fuel pump. Camshafts without the eccentric work fine in the '88 Fiero. The list below includes camshafts without the eccentric.
Pontiac 6000 '90-91 3.1L
Chevrolet Beretta '90-93 3.1L
Camaro '90-92 3.1L
Camaro '93-95 3.4L
Cavalier '90-94 3.1L
Chevy Celebrity '90 3.1L
Chevy Corsica '90-93 3.1L
Olds Cutlass '90-92 3.1L
Olds Cutlass '93 3.1L VIN "T" (8th digit)
Firebird '90-92 3.1L
Firebird '93-95 3.4L
Pontiac Grand Prix '90-93 3.1L
Chevy Lumina Car '90-94 3.1L
Olds Regal '90-93 3.1L
S10/S15/GM Sonoma '90-93 2.8L
Pontiac Sunbird '91-94 3.1L
Pontiac Tempest '90-93 3.1L
Isuzu Trooper '90-91 2.8L
Post by: GTRS Fiero on December 24, 2018, 06:27:19 pm
The Fiero cigarette lighter is common to so many GM vehicles that we make no attempt to list them. If non-factory lighter elements are desired they are available from almost any auto parts store. Here are a few available options for aftermarket lighters:
Cigarette Lighter, all years
Element Help! 56466
Short knob w/element Help! 56462
Long knob w/element Help! 56464
Post by: GTRS Fiero on December 24, 2018, 06:27:38 pm
We don't have a great deal of information on Fiero clutch systems but offer what we have. There are two different clutch sizes used in Fieros. The 1984 Fiero and all V6 Fieros came with a 9.125" clutch. The 1985-88 4-cylinder Fieros came with a 8.5" clutch. The clutch parts are interchangeable so if you're replacing the 8.5" clutch it is feasible to use the larger clutch disc and pressure plate. This should provide a bit longer clutch life.
Note that the throwout bearings are specific to each transaxle, not the engine or model year, so be sure to get the correct one when replacing.
Fieros with the Muncie 4-speed transaxle (see "Transmission, Manual") have a pilot bearing but the 5-speed transaxles do not use a pilot bearing.
CLUTCH DISK
'84-88 2.5L: These Fieros used a clutch disc which is unique to these cars. Aftermarket replacements are available from auto parts suppliers.
'85-86 2.8L 4 speed: Same as '84-88 2.5L
'86-88 2.8L 5 speed
Pontiac 6000 '87-88 2.8L
Chevrolet Beretta '87-89 2.8L
Chevrolet Beretta '90-92 3.1L
Cavalier '87 2.8L five speed
Cavalier '88-89 2.8L
Cavalier '90-92 3.1L
Chevy Celebrity '87-88 2.8L
Cadillac Cimarron '87
Chevy Corsica '87-89 2.8L
Chevy Corsica '90-92 3.1L
Olds Cutlass '88-89 2.8L
Olds Firenza '87 2.8L
Pontiac Grand Prix '88-89
Pontiac Sunbird '91-92 3.1L
Pontiac Tempest '87-89 2.8L
Pontiac Tempest '90-92 3.1L
CLUTCH FORK and PILOT BEARING We have no information on the Fiero clutch fork and pilot bearing being used in other vehicles. Part numbers for aftermarket clutch forks are shown below.
Clutch Fork
'84-87 four speed Clutch-In! 14561
'86-87 five speed Clutch-In! 14720
'88 trans code 8ZL Clutch-In! 14720
'88 except trans code 8ZL Clutch-In! 14741
Clutch Pilot Bearing, 2.5L, '84-88 Clutch-In! 14646
CLUTCH PEDAL
The aluminum clutch pedal in '84-86 Fieros is prone to bending. Symptoms of a bent pedal are difficult shifting and/or clutch not fully disengaging. Pedals in '87-88 Fieros and all replacement pedals are steel. The GM part number for the steel pedal is 10066423 but it is generally unavailable. New steel pedals can be found at the Fiero Store (fierostore.com). With a new GM pedal in the '84-86 Fiero the clutch pedal spring is eliminated and a new master cylinder push rod and retainer clip must be installed. We are not sure if this is required with the Fiero Store pedal. The part numbers for the master cylinder push rod are 10126424 for '84-85 and 10126423 for '86. The retainer clip is part number 10040797. A new bushing for the pedal pin is also recommended. It is part number 14094900.
A replacement for the rubber clutch pedal surface for all years is Pedal Up! 20733.
Post by: GTRS Fiero on December 24, 2018, 06:28:08 pm
Cold Start Injector Switch, V-6: The injector switch is available from GM (14084318) but is the same as Bosch part number 0280 130 229 which may be less expensive from a parts store. Note this switch is not the same as the cold start injector itself.
Post by: GTRS Fiero on December 24, 2018, 06:28:29 pm
As in many basic components, GM used the same crankshaft in many cars besides the Fiero. In some cases the Fiero crankshaft is the same as those used in American Motors and Isuzu vehicles!
'84-85 2.5L:
Pontiac Pontiac 6000 '82-85 2.5L
Pontiac Pontiac 6000 '86 2.5L Standard
Pontiac Pontiac 6000 '86 2.5L Undersize, fits by including bearings
Pontiac Pontiac 6000 '87-91 2.5L
Pontiac Astro '85 2.5L
Pontiac Astro '86 2.5L Standard
Pontiac Astro '86 2.5L Undersize, fits by including bearings
Pontiac Astro '87-90 2.5L
Blazer S10/GM Jimmy S15 '85 2.5L
Blazer S10/GM Jimmy S15 '86 2.5L Standard
Blazer S10/GM Jimmy S15 '86 2.5L Undersize, fits by including bearings
Blazer S10/GM Jimmy S15 '87-88 2.5L
Camaro '82-85 2.5L
Camaro '86 2.5L Standard
Camaro '86 2.5L Undersize, fits by including bearings
Chevy Celebrity '82-85 2.5L
Chevy Celebrity '86 2.5L Standard
Chevy Celebrity '86 2.5L Undersize, fits by including bearings
Chevy Celebrity '87-90 2.5L
Buick Century '82-85 2.5L
Buick Century '86 2.5L Standard
Buick Century '86 2.5L Undersize, fits by including bearings
Buick Century '87-92 2.5L
Olds Ciera '82-85 2.5L
Olds Ciera '86 2.5L Standard
Olds Ciera '86 2.5L Undersize, fits by including bearings
Olds Ciera '87-92 2.5L
Chevy Citation '80-85 2.5L
Jeep CJ Series '80-82 2.5L
Jeep CJ Series '83 2.5L VIN "B"
American Motors Concord '80-82 2.5L
Jeep Eagle '81-82 2.5L
Jeep Eagle '83 2.5L Two-barrel carb (American Motors)
Firebird '82-85 2.5L
Firebird '86 2.5L Standard
Firebird '86 2.5L Undersize, fits by including bearings
Chevy Lumina Car '90-92 2.5L
Chevy Monza '79 2.5L VIN "9" (5th digit)
Chevy Monza '79 2.5L VIN "V" (5th digit)
Chevy Monza '80 2.5L
Olds Omega '80-84 2.5L
Pontiac Phoenix '80-84 2.5L
S10/S15/GM Sonoma '85 2.5L
S10/S15/GM Sonoma '86 2.5L Standard
S10/S15/GM Sonoma '86 2.5L Undersize, fits by including bearings
S10/S15/GM Sonoma '87-'93 2.5L
Pontiac Safari (GMC) '85 2.5L
Pontiac Safari (GMC) '86 2.5L Standard
Pontiac Safari (GMC) '86 2.5L Undersize, fits by including bearings
Pontiac Safari (GMC) '87-'90 2.5L
Buick Skylark '80-85 2.5L
American Motors Spirit '80-82 2.5L
Olds Starfire '79 2.5L VIN "9" (5th digit)
Olds Starfire '79 2.5L VIN "V" (5th digit)
Olds Starfire '80 2.5L
Pontiac Sunbird '79 2.5L VIN "9" (5th digit)
Pontiac Sunbird '79 2.5L VIN "V" (5th digit)
Pontiac Sunbird '80 2.5L
'86 2.5L
Pontiac 6000 '86 2.5L Standard
Pontiac 6000 '86 2.5L Undersize, fits by including bearings
Pontiac 6000 '87-91 2.5L Fits by including bearings
Pontiac Astro '86 2.5L Standard
Pontiac Astro '86 2.5L Undersize, fits by including bearings
Pontiac Astro '87-90 2.5L Fits by including bearings
Blazer S10/GM Jimmy S15 '86 2.5L Standard
Blazer S10/GM Jimmy S15 '86 2.5L Undersize, fits by including bearings
Blazer S10/GM Jimmy S15 '87-88 2.5L Fits by including bearings
Camaro '86 2.5L Standard
Camaro '86 2.5L Undersize, fits by including bearings
Chevy Celebrity '86 2.5L Standard
Chevy Celebrity '86 2.5L Undersize, fits by including bearings
Chevy Celebrity '87-90 2.5L Fits by including bearings
Buick Century '86 2.5L Standard
Buick Century '86 2.5L Undersize, fits by including bearings
Buick Century '87-92 2.5L Fits by including bearings
Olds Ciera '86 2.5L Standard
Olds Ciera '86 2.5L Undersize, fits by including bearings
Olds Ciera '87-92 2.5L Fits by including bearings
Firebird '86 2.5L Standard
Firebird '86 2.5L Undersize, fits by including bearings
Chevy Lumina Car '87-92 2.5L Fits by including bearings
S10/S15/GM Sonoma '86 2.5L Standard
S10/S15/GM Sonoma '86 2.5L Undersize, fits by including bearings
S10/S15/GM Sonoma '87-93 2.5L Fits by including bearings
Pontiac Safari (GMC) '86 2.5L Standard
Pontiac Safari (GMC) '86 2.5L Undersize, fits by including bearings
Pontiac Safari (GMC) '87-90 2.5L Fits by including bearings
'87-88 2.5L
Pontiac Pontiac 6000 '87-91 2.5L
Pontiac Astro '87-90 2.5L
Blazer S10/GM Jimmy S15 '87-88 2.5L
Celebrity '87-90 2.5L
Buick Century '87-92 2.5L
Olds Ciera '87-92 2.5L
Chevy Lumina Car '87-92 2.5L
S10/S15/GM Sonoma '87-93 2.5L
Pontiac Safari (GMC) '87-90 2.5L
'85-86 2.8L
Pontiac Pontiac 6000 '85 2.8L Two-barrel carb, late
Pontiac Pontiac 6000 '85 2.8L EFI
Pontiac Pontiac 6000 '86 2.8L
Blazer S10/GM Jimmy S15 '85 2.8L late
Camaro '85-86 2.8L
Cavalier '85-86 2.8L
Chevy Celebrity '85 2.8L Two-barrel carb, late
Chevy Celebrity '85 2.8L EFI
Chevy Celebrity '86 2.8L
Buick Century '85 2.8L late
Buick Century '86 2.8L
Olds Ciera '85 2.8L late
Olds Ciera '86 2.8L
Cadillac Cimarron '85-86 2.8L
Chevy Citation '85 2.8L Two-barrel carb, late
Chevy Citation '85 2.8L
Firebird '85-86 2.8L
Olds Firenza '85-86 2.8L
S10/S15/GM Sonoma '85 2.8L late
S10/S15/GM Sonoma '86 2.8L
Buick Skylark '85 2.8L Two-barrel carb, late
Buick Skylark '85 2.8L EFI
'87 2.8L
Chevy Blazer S10/GM Jimmy S15 '87 2.8L
Camaro '87 2.8L
Firebird '87 2.8L
S10/S15/GM Sonoma '87 2.8L
'88 2.8L
Pontiac Pontiac 6000 '87 2.8L piston cast. 14092276
Blazer S10/GM Jimmy S15 '88-89 2.8L
Chevrolet Beretta '87 2.8L piston cast. 14092276
Chevrolet Beretta '88 2.8L VIN 200,001-500,000
Camaro '88-89 2.8L
Cavalier '87 2.8L piston cast. 14092276
Chevy Celebrity '87 2.8L piston cast. 14092276
Buick Century '87 2.8L piston cast. 14092276
Olds Ciera '87 2.8L piston cast. 14092276
Cadillac Cimarron '87 2.8L piston cast. 14092276
Chevy Corsica '87 2.8L piston cast. 14092276
Chevy Corsica '88 2.8L VIN 200,001-500,000
Firebird '88-89 2.8L
Olds Firenza '87 2.8L piston cast. 14092276
S10/S15/GM Sonoma '88-90 2.8L
S10/S15/GM Sonoma '91 2.8L w/o interim design change
Pontiac Tempest '87 2.8L piston cast. 14092276
Pontiac Tempest '88 2.8L VIN 200,001-500,000
Isuzu Trooper '89-90 2.8L
Post by: GTRS Fiero on December 24, 2018, 06:29:03 pm
Crossover Pipe: The V-6 Fiero has a steel coolant pipe which crosses the firewall to connect under-car coolant line to the engine. (The outlet hose from the thermostat neck connects to this pipe.) The pipe is unique to the Fiero and can corrode. Replacements can be custom-made at radiator shops or a stainless replacement can be obtained from rodneydickman.com. They are also available from the Fiero Store (fierostore.com)
Post by: GTRS Fiero on December 24, 2018, 06:29:21 pm
GM used three methods of cruise control for the Fiero. In 1984 the cruise control function is integrated into the speedometer circuit card in the instrument cluster.
All '85-88 V-6 Fieros and the '85-86 four-cylinder use a self-contained cruise control module. It is located under the carpet to the right of the accelerator pedal. You will need to loosen or remove the radio console in order to peel back the carpet for access to the module. The cruise control module does not often fail, but when it does it's cost effective to replace it with a salvaged unit.
The '87-88 four-cylinder Fiero has cruise control functions controlled by the Engine Control Module (ECM). The ECM seldom goes bad and if it does then a new one is required. It is much more likely that the mechanical components of the cruise control system will fail than the ECM.
'84: As mentioned above, the '84 does not have a stand-alone cruise control module. If the electronic portion of the system has malfunctioned it will be necessary to swap in a salvaged speedometer circuit card from a donor '84 Fiero. Be careful in obtaining a donor circuit card; not all '84 Fieros had cruise control. Also note that the '84 cruise control does not include the the ability to tap "Set" and have the speed decrease a little or to tap the "Resume/Accelerate" to speed up a little.
'85-86 2.5L: Cruise Control module has identification no. 25075044
Cadillac Cimarron '84-88
Buick Skyhawk '85-86 1.8L VIN "J" and VIN "O"
Buick Skyhawk '87 2.0L VIN "K" and VIN "1"
Fiero '88 2.8L
'87-88 2.5L: As mentioned above, the 1987-88 2.5L Fiero did not have a cruise control module. Cruise control functions are controlled by the ECM. See the section on ECMs if a replacement is needed.
'85-87 2.8L
Pontiac 6000 '85-86 2.8L 2 barrel carb, VIN "X"
Pontiac Astro '85 2.5L VIN "E"
Pontiac Astro '85 4.3L VIN "N"
Pontiac Astro '86-90 2.5L VIN "E"
Blazer S10/GM Jimmy S15 '85 2.5L VIN "E"
Blazer S10/GM Jimmy S15 '85 2.8L VIN "B"
Blazer S10/GM Jimmy S15 '86 2.5L VIN "E"
Blazer S10/GM Jimmy S15 '86 2.8L VIN "R", "BH" on label
Blazer/GM Jimmy full size '85 5.0L VIN "H"
Blazer/GM Jimmy full size '85 5.7L VIN "L"
Blazer/GM Jimmy full size '85 6.2L VIN "C" 4 x 2 diesel
Blazer/GM Jimmy full size '85 5.0L VIN "H"
Blazer/GM Jimmy full size '85 5.7L VIN "L"
Camaro '85-89 2.8L VIN "S"
Chevy Celebrity '85-86 2.8L VIN "X"
Buick Century '85-86 2.8L VIN "X"
Chevy Passenger '85 5.0L VIN "H" MD8 transmission
Chevy Passenger '86-88 5.0L VIN "H"
Chevy Passenger '89-90 5.0L VIN "E"
Chevy Pickup '85 4.3L VIN "N"
Chevy Pickup '85 4.8L VIN "T"
Chevy Pickup '85 5.0L VIN "F" and "H"
Chevy Pickup '85 5.7L VIN "K", "L", and "M"
Chevy Pickup '85 6.2L VIN "C" and "J", 4 x 2 diesel
Chevy Pickup '85 7.4L VIN "W"
Chevy Pickup '86 4.3L VIN "N"
Chevy Pickup '86 4.8L VIN "T"
Chevy Pickup '86 5.0L VIN "F" and "H"
Chevy Pickup '86 5.7L VIN "K", "L", and "M"
Chevy Pickup '86 7.4L VIN "W"
Chevy Pickup '87-91 4.3L VIN "Z"
Chevy Van '85-86 4.3L VIN "N"
Chevy Van '85-86 5.0L VIN "F" and "H"
Chevy Van '85-86 5.7L VIN "L" and "M"
Olds Ciera '86 2.8L VIN "X"
Chevy Citation '85 2.8L VIN "X"
Olds Cutlass '85-86 5.0L VIN "H"
Firebird '85-89 2.8L VIN "S"
GMC Pickup '85 4.3L VIN "N"
GMC Pickup '85 4.8L VIN "T"
GMC Pickup '85 5.0L VIN "F" and "H"
GMC Pickup '85 5.7L VIN "K", "L", and "M"
GMC Pickup '85 6.2L VIN "C" and "J", 4 x 2 diesel
GMC Pickup '85 7.4L VIN "W"
GMC Pickup '86 4.3L VIN "N"
GMC Pickup '86 4.8L VIN "T"
GMC Pickup '86 5.0L VIN "F" and "H"
GMC Pickup '86 5.7L VIN "K", "L", and "M"
GMC Pickup '86 7.4L VIN "W"
GMC Pickup '87-91 4.3L VIN "Z"
GMC Van '85-86 4.3L VIN "N"
GMC Van '85-86 5.0L VIN "F" and "H"
GMC Van '85-86 5.7L VIN "L" and "M"
Pontiac Grand Prix '85-86 5.0L VIN "H"
Chevy Malibu '85-87 5.0L VIN "H"
Chevy Monte Carlo '85 5.0L VIN "G" and "H"
Chevy Monte Carlo '86 5.0L VIN "H"
Pontiac '85 5.0L VIN "H", MD8 transmission
Pontiac '86 5.0L VIN "H"
Olds Regal '85-86 5.0L VIN "H"
S10/S15/GM Sonoma '85 1.9L VIN "A
S10/S15/GM Sonoma '85 2.5L VIN "E"
S10/S15/GM Sonoma '85 2.8L VIN "B"
S10/S15/GM Sonoma '86 2.5L VIN "E" 1st design, "BH" on label
S10/S15/GM Sonoma '86 2.8L VIN "R" 1st design, "BH" on label
Pontiac Safari (GMC) '85 2.5L VIN "E"
Pontiac Safari (GMC) '86-90 2.5L VIN "E"
Chevy Suburban '85 5.0L VIN "F" and "H"
Chevy Suburban '85 5.7L VIN "K", "L", and "M"
Chevy Suburban '85 6.2L VIN "C" and "J" 4 x 2
Chevy Suburban '85 7.4L VIN "W"
Chevy Suburban '86 5.0L VIN "F" and "H"
Chevy Suburban '86 5.7L VIN "K", "L", and "M"
Chevy Suburban '86 7.4L VIN "W"
Chevy Suburban '87-91 5.7L VIN "K"
'88 2.8L: Cruise Control module has identification no. 25075044
Cadillac Cimarron '84-88
Buick Skyhawk '85-86 1.8L VIN "J" and VIN "O"
Buick Skyhawk '87 2.0L VIN "K" and VIN "1"
Fiero '85-86 2.5L
Post by: GTRS Fiero on December 24, 2018, 06:29:42 pm
Most Fiero cylinder blocks will exchange with many GM cars since the engines were widely used by GM. This is not true of '87 and '88 Fieros with 2.8L engines. The'87 and '88 2.8L blocks are each unique and will not exchange with each other. We are not sure why but presume that something like crank bearings or coolant passages are different. This does not mean that '87 and '88 engines cannot be swapped in their entirety.
'84 2.5L Cylinder blocks listed for the '85-86 2.5L Fiero can be used in the '84 Fiero if non-roller lifters are used. The 1984 2.5 L Fiero did not use roller lifters.
Pontiac 6000 '84 2.5L
Camaro '84 2.5L
Chevy Celebrity '84 2.5L
Buick Century '84 2.5L
Olds Ciera '84 2.5L
Chevy Citation '84 2.5L
Firebird '84 2.5L
Olds Omega '84 2.5L
Pontiac Phoenix '84 2.5L
Buick Skylark '84 2.5L
'85-86 2.5L Roller lifters were used in the '85-86 2.5L Fiero engine.
Pontiac 6000 '84-85 2.5L
Chevy Celebrity '84-85 2.5L
Buick Century '84-85 2.5L
Olds Ciera '84-85 2.5L
Buick Skylark '84-85 2.5L
Chevy Citation '85 2.5L
'87 2.5L Roller lifters were used in the '87 2.5L Fiero engine.
Pontiac 6000 '87 2.5L
Chevy Celebrity '87 2.5L
Buick Century '87 2.5L
Olds Ciera '87 2.5L
'88 2.5L Has balanced shaft. Roller lifters were used in the '88 2.5L Fiero engine.
Pontiac 6000 '88-90 2.5L
Chevy Celebrity '88-90 2.5L
Buick Century '88-90 2.5L
Olds Ciera '88-90 2.5L
Chevy Lumina Car '90 2.5L
'85-86 2.8L
Pontiac 6000 '85-86 2.8L EFI
Cavalier '85-86 2.8L
Chevy Celebrity '85-86 2.8L EFI
Olds Ciera '85-86 2.8L California
Cadillac Cimarron '85-86 2.8L
Chevy Citation '85-86 2.8L EFI
Olds Firenza '85-86 2.8L
Buick Skylark '85-86 2.8L
'87 2.8L Short block: Not used on other vehicles. Cylinder block not interchangeable with '88 Fiero.
'88 2.8L Short block: Not used on other vehicles. Cylinder block not interchangeable with '87 Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:29:58 pm
As might be expected, the cylinder heads in a Fiero are common to many GM engines. There were many variations so care must be exercised in getting the correct heads.
'84-86 2.5L XJS: The designation "XJS" is stamped on the front face or right rear of the block. The intake valve has 0.3137" diameter stem. The exhaust valve has 0.3132" diameter stem. The push rod length is 8.3".
Pontiac 6000 '84-86 2.5L Identification XJS on block
Chevy Celebrity '84-86 2.5L Identification XJS on block
Buick Century '84-86 2.5L Identification XJS on block
Olds Ciera '84-86 2.5L Identification XJS on block
Chevy Citation '84-85 2.5L Identification XJS on block
Olds Omega '84 2.5L Identification XJS on block
Pontiac Phoenix '84 2.5L Identification XJS on block
Buick Skylark '84-85 2.5L Identification XJS on block
'84-86 2.5L XJS: The designation "XJS" is stamped on the front face or right rear of the block. The following non-XJS heads will interchange if the coolant outlet and positions are switched and the push rods are included. The heads below must have identification number 10020699 or 1552.
Pontiac 6000 '82-83 2.5L
Chevy Celebrity '82-83 2.5L
Buick Century '82-83 2.5L
Olds Ciera '82-83 2.5L
Chevy Citation '82-83 2.5L
Olds Omega '82-83 2.5L
Pontiac Phoenix '82-83 2.5L
Buick Skylark '82-83 2.5L
'84-86 2.5L XJS: The designation "XJS" is stamped on the front face or right rear of the block. The following heads will interchange if the coolant outlet and positions are switched and the push rods are included. The intake valves have 0.3422" diameter stems. The exhaust valves have 0.3419" diameter stems. The push rod length is 8.4". The heads below must have identification number 10022373, 10027767, 10030838, 10030839, 12360333, 1373 or 1767.
Pontiac 6000 '84 2.5L w/o XJS designation on block
Camaro '84 2.5L
Chevy Celebrity '84 2.5L w/o XJS designation on block
Buick Century '84 2.5L w/o XJS designation on block
Olds Ciera '84 2.5L w/o XJS designation on block
Chevy Citation '84 2.5L w/o XJS designation on block
Firebird '84 2.5L
Olds Omega '84 2.5L w/o XJS designation on block
Pontiac Phoenix '84 2.5L w/o XJS designation on block
Buick Skylark '84 2.5L w/o XJS designation on block
'84-86 2.5L XJS: The designation "XJS" is stamped on the front face or right rear of the block. The following non-XJS heads will interchange if the coolant outlet and positions are switched and the push rods are included. The intake valves have 0.3422" diameter stems. The exhaust valves have 0.3419" diameter stems. The push rod length is 8.4". The heads below must have identification number 10037282, 10038231 or 12360335.
Pontiac 6000 '85-86 2.5L w/o XJS designation on block
Chevy Celebrity '85-86 2.5L w/o XJS designation on block
Buick Century '85-86 2.5L w/o XJS designation on block
Olds Ciera '85-86 2.5L w/o XJS designation on block
Chevy Citation '85 2.5L w/o XJS designation on block
Buick Skylark '85 2.5L w/o XJS designation on block
'84-86 2.5L w/o XJS: When present, the designation "XJS" is stamped on the front face or right rear of the block. The following heads will interchange if the coolant outlet and positions are switched and the push rods are included. The intake valves have 0.3422" diameter stems. The exhaust valves have 0.3419" diameter stems. The push rod length is 8.4". The heads below must have identification number 10022373, 10027767, 10030838, 10030839, 12360333, 1373 or 1767.
Pontiac 6000 '84 2.5L w/o XJS designation on block
Camaro '84 2.5L
Chevy Celebrity '84 2.5L w/o XJS designation on block
Buick Century '84 2.5L w/o XJS designation on block
Olds Ciera '84 2.5L w/o XJS designation on block
Chevy Citation '84 2.5L w/o XJS designation on block
Firebird '84 2.5L
Olds Omega '84 2.5L w/o XJS designation on block
Pontiac Phoenix '84 2.5L w/o XJS designation on block
Buick Skylark '84 2.5L w/o XJS designation on block
'85-86 2.5L w/o XJS: When present, the designation "XJS" is stamped on the front face or right rear of the block. The following non-XJS heads will interchange if the coolant outlet and positions are switched and the push rods are included. The intake valves have 0.3422" diameter stems. The exhaust valves have 0.3419" diameter stems. The push rod length is 8.4". The heads below must have identification number 10037282, 10038231 or 12360335.
Pontiac 6000 '85-86 2.5L w/o XJS designation on block
Chevy Celebrity '85-86 2.5L w/o XJS designation on block
Buick Century '85-86 2.5L w/o XJS designation on block
Olds Ciera '85-86 2.5L w/o XJS designation on block
Chevy Citation '85 2.5L w/o XJS designation on block
Buick Skylark '85 2.5L w/o XJS designation on block
'87-88 2.5L: The heads below will interchange only if they have identification number 10049100, 10117769, or 12360340.
Pontiac 6000 '87-88 2.5L
Chevy Celebrity '87-88 2.5L
Buick Century '87-88 2.5L
Olds Ciera '87-88 2.5L
The following information was posted to Pennock's Fiero Forum by "Ray", Houston, TX:
Better flowing heads for an '87-88 Fiero 2.5L are found on the '90-93 S-10, S-15 and Blazer. Using these heads requires transferring the intake manifold with the heads, but all other parts from the Fiero will bolt on directly. Changing the heads/intake provides a bit more horsepower and better mileage. The exhaust ports on the newer heads are smaller than those on the Fiero but are more efficient. The combustion chambers are different and provide better fuel/air mixing and better cooling.
'87-88 2.5L: The heads below will interchange if the coolant outlet and positions are switched. Heads must have identification number 10054501, 1006630, 10117770 or 12360340.
Pontiac Astro '87-88 2.5L
Blazer S10/GM Jimmy S15 '87-88 2.5L
S10/S15/GM Sonoma '87-88 2.5L
Pontiac Safari (GMC) '87-88 2.5L
'85-88 2.8L: The following are cast iron heads and must have identification number 14054879 or 1405884. The compression ratio is 8.9 to 1.
Pontiac 6000 '83-84 2.8L H.O. VIN "Z" (8th digit)
Pontiac 6000 '85-86 2.8L EFI
Blazer S10/GM Jimmy S15 '86-89 2.8L
Camaro '85-89 2.8L
Camaro '90-92 3.1L
Camaro '93-95 3.4L
Cavalier '85-86 2.8L
Chevy Celebrity '84 2.8L VIN "Z" (8th digit)
Chevy Celebrity '85-86 2.8L EFI
Buick Century '84 2.8L VIN "Z" (8th digit)
Buick Century '85 2.8L EFI
Olds Ciera '85 2.8L EFI
Cadillac Cimarron '85-86 2.8L
Chevy Citation '83-84 2.8L H.O. VIN "Z" (8th digit)
Chevy Citation '85 2.8L EFI
Firebird '83-84 2.8L H.O. VIN "L" (8th digit)
Firebird '85-89 2.8L
Firebird '90-92 3.1L
Firebird '93-95 3.4L
Olds Firenza '85-86 2.8L
Chevy Lumina Van '90-95 3.1L
Olds Omega '83-84 2.8L H.O. VIN "Z" (8th digit)
Pontiac Phoenix '83-84 2.8L H.O. VIN "Z" (8th digit)
Pickup, Isuzu '91-94 3.1L TBI
Isuzu Rodeo '91-92 3.1L
S10/S15/GM Sonoma '86-93 2.8L
Olds Silhouette '90-95 3.1L
Buick Skylark '83-84 2.8L H.O. VIN "Z" (8th digit)
Buick Skylark '85 2.8L EFI
Pontiac Trans Sport '90-95 3.1L
Isuzu Trooper '89-91 2.8L
Fiero owner Steve Steel researched the 2.8L cylinder heads trying to determine the difference represented by the two identification numbers. Here is what he found out from New Jersey Cylinder Head Co.:
"The two casting numbers (879, 884) are identical heads. The manufactures change the casting numbers every once in a while even though they are producing the same castings. Those casting numbers are 100% compatible with each other along with casting numbers 227/327. They will fit a 2.8L and a 3.1L GM engine from '85-94 that uses that style cast iron head."
Post by: GTRS Fiero on December 24, 2018, 06:30:18 pm
The 4-cylinder Fiero engine used a distributor only in '84-86. The V-6 Fiero engine used a distributor in all years ('85-88).
'84 2.5L: Equivalent distributors can be found in the following engines:
Pontiac 6000 '84 2.5L
Camaro '84 2.5L
Chevy Celebrity '84 2.5L
Buick Century '84 2.5L
Olds Ciera '84 2.5L
Chevy Citation '84 2.5L
Firebird '84 2.5L
Olds Omega '84 2.5L
Pontiac Phoenix '84 2.5L
Buick Skylark '84 2.5L
'85-86 2.5L This distributor is unique. Will not swap with '84 Fiero
'87-88 2.5L These engines did not use a distributor.
'85-88 2.8L: Equivalent distributors can be found in the following engines:
Pontiac 6000 '85-89 2.8 L VIN W 8th digit
Pontiac 6000 STE '86-88 2.8 L VIN W 8th digit
Chevrolet Beretta '87-89 2.8 L VIN W 8th digit
Camaro '85-89 2.8 L VIN S 8th digit
Camaro '90-91 3.1 L VIN T 8th digit
Camaro RS '92 3.1 L VIN T 8th digit
Cavalier '85-89 2.8 L VIN W 8th digit
Cavalier Z24 '86-89 2.8 L VIN W 8th digit
Chevy Celebrity '85-89 2.8 L VIN W 8th digit
Olds Ciera Cruiser '86 2.8 L VIN W 8th digit
Cadillac Cimarron '85-87 2.8 L VIN W 8th digit
Chevy Citation II '85 2.8 L VIN W 8th digit
Chevy Corsica '87-89 2.8 L VIN W 8th digit
Olds Cutlass Olds Ciera '86 2.8 L VIN W 8th digit
Fierenza '85-86 2.8 L VIN W 8th digit
Firebird '85-89 2.8 L VIN S 8th digit
Firebird '90-92 3.1 L VIN T 8th digit
Firebird Trans Am '87-88 2.8 L VIN S 8th digit
Pontiac Grand Prix '88-89 2.8 L VIN W 8th digit
Buick Skylark '85 2.8 L VIN W 8th digit
Pontiac Tempest '87-89 2.8 L VIN W 8th digit
Remanufactured and/or new distributors can be obtained at AutoZone and probably other parts suppliers. We understand the AutoZone replacements use newer technology than the original GM distributors and work well. The Fiero Store also has replacment distributors.
Distributor Parts: The distributor gear for the V-6 is rumored to be discontinued but should be obtainable under GM part number 01985769. A worn gear can be the cause for jumpy timing. GM part numbers for other components of the Fiero distributors are as follow:
Part Description L-4 Distributor V-6 Distributor
Distributor Shaft discontinued 10497450
Shaft Bushings 10477565 discontinued
O-Ring 10477565 10477565
Pickup Coil 1987964 10495089
Ignition Module 10882835 10482827
The '87-88 four-cylinder Fiero did not have a distributor and used a Distributorless Ignition System or "DIS". Some of the GM part numbers in this system are:
Part Description Part Number
Crank Sensor 10496122
Ignition Module 10467208
Coil Pack 10472401
Our thanks to the May/June 2005 "Fiero Focus" from Northern Illinois Fiero Enthusiasts for the distributor part numbers.
Post by: GTRS Fiero on December 24, 2018, 06:30:36 pm
DOOR HARDWARE: Hardware and switches for the doors are available as shown below:
Door Handle, left, '84-88 Help! 77048
Door Handle, right, '84-88 Help! 77049
Door Hinge Pin/Bushing kit, '84-88 Help! 38407
The complete Fiero door hinge is no longer available but is common to the Chevy S10 which is available. The part number of the hinge pin is 20043351, the bushing is 20429500, and the retainer is 204458993.
Door Lock Actuator, electric, both sides, '84-88 Help! 75614
Door Lock Switch, electric (left only) '84-88 Help! 49218
The following cars had the same door handles as the '84-88 Fiero:
'82-88 Buick Century
'82-89 Buick Skyhawk
'86-91 Buick Skylark
'85-87 Buick Somerset
'82-92 Chevy Camaro
'82-94 Chevy Cavalier
'82-90 Chevy Celebrity
'85-91 Oldsmobile Cutlass
'85-91 Oldsmobile Cutlass Calais
'82-91 Pontiac 6000
'82-92 Pontiac Firebird
'85-91 Pontiac Grand AM
'82-84 Pontiac J2000
'85-94 Pontiac Sunbird
'82-92 Pontiac Trans Am
Door handles (and many other parts) are available new from ac-autparts.com.
Cars with the same electric door lock switches:
Buick Century '85-89
Buick Buick Skyhawk '82-89
Cadillac Cimarron '83-88
Camaro '82-89
Chevy Celebrity '85-89
Chevy Citation '85
Corvette '84-85
Olds Cutlass '91
Olds Cutlass Supreme '91
Olds Cutlass Cruiser '91
Pontiac 6000 '85-86
Firebird '82-92
Pontiac J2000 '83-86
Pontiac Sunbird '84-94
Door Lock Lever
The door lock lever on the Fiero is the same as 1979-1986 Oldsmobile "E" body (Toronado). It is part number 2015719.
Our thanks to Mike Bucala for providing this info.
Post by: GTRS Fiero on December 24, 2018, 06:30:55 pm
EGR TUBE
The 2.8L engine has an EGR tube which goes from the EGR valve to the underside of the intake plenum. The '85-87 EGR tubes are the same but the '88 tube is a bit longer. Earlier tubes can fit an '88 if stretched. New "one size fits all" tubes are available from the Fiero Store. EGR tubes from 2.8L Camaro and Firebird engines as well as some other late '80s Pontiacs will fit the Fiero but do not have the heat shield. These must have the bolt holes slotted on the end which attaches to the EGR valve. These EGR tubes are slightly larger in diameter and seem to be a bit more rugged than the original Fiero EGR tubes and work well on the Fiero V-6.
The EGR tube has a gasket at both ends, AC Delco part number 10239631.
EGR SOLENOID
The 2.8L engine has an EGR solenoid which is actuated by the ECM to open the EGR valve. The EGR solenoid is mounted on an engine bracket near the battery and the EGR valve is mounted on the exhaust pipe near the distributor. The solenoid is unique to the Fiero and was not used on other vehicles. The part number is AC Delco 214-361 and is generally available, although pricey. We understand that EGR solenoids from late '80s S10 trucks can be subsituted but since they are not same mounting or configuration, some "engineering" is required.
EGR VALVE
The EGR valve mounts to the exhaust piping near the distributor and feeds limited amounts of exhaust gas to the underside of the intake plenum when directed by the ECM. The valve is vacuum actuated and can be tested for operation by pulling a vaccum on the diaphragm. (Remove existing vacuum tube, install temporary tube, and suck!) If the valve needs replacement you can use new (AC Delco part number 214-1415) or salvaged. Many cars used the same EGR Valve:
Buick 1973-1976
Chevrolet 1975-1978
Nissan/Datsun 1974-1977
Oldsmobile 1975-1976
Opel 1976
Pontiac 1975-1988
The EGR valve gasket is AC Delco part number 219-581.
EGR VALVE COVER
The EGR valve on the 2.8L Fiero did not come with a cover. Some late '80s and early '90s 3.8L GM engines used the same size EGR valve which did come with black plastic "dress up" covers. These can be retrofitted to the Fiero as a simple snap-on installation for improved appearance. They can be painted to match the intake plenum.
Post by: GTRS Fiero on December 24, 2018, 06:31:11 pm
Some Fiero electrical connectors become brittle with age. Replacements can be found through auto parts stores and the AC Delco web site (acdelco.com). A few connectors can be found in the blister packs in auto parts stores as shown below.
Radio '84-88 Conduct-Tite! 85176
A/C high pressure switch '84-88 Conduct-Tite! 85147
A/C low pressure switch '84-88 Conduct-Tite! 85148
A/C pressure switch '85-86 Conduct-Tite! 85146
Cooling Fan Relay '85-87 Conduct-Tite! 84593
IAC Valve '84-88 Conduct-Tite! 85112
TBI solenoid, 2.5L '87-88 Conduct-Tite! 85138
Ignition module harness, 2.8L '85 Conduct-Tite! 85135
Ignition switch repair kit, '84-86 Conduct-Tite! 84599
Washer Fluid Sensor '88 Conduct-Tite! 85190
Sensing of the coolant level was not used on the Fiero but was apparently planned. This feature can be added per Oliver Scholz's web site: www.fieros.de/en/articles/lowcool.html
NOTE: It is our guess that the above '85 2.8L Ignition Module Harness will fit all Fiero 2.8L engines. Other cars which used the same ignition module harness are:
Buick Skylark '85
Chevy Citation '85
Chevy El Camino '85
Chevy Monte Carlo '85
Olds Firenza '85
Pontiac Parisienne '85
Post by: GTRS Fiero on December 24, 2018, 06:31:42 pm
FRONT BUMPER FIERO LOGO
The front bumper emblem was gold in 1984/85 and made of metal and plastic. In 1986 it was changed to silver and made entirely of plastic. The GT model had "Fiero GT" in the emblem. Nose emblems are no longer available from GM but can be found used on eBay from time to time. The Fiero Store (fierostore.com) carries new inserts for around $25. This requires that you have the base of the emblem in which to insert the new badge. Some "New Old Stock" (NOS) badges have been available from fierodave.com but supply is limited.
SAIL PANEL EMBLEM
The "arrowhead" emblem on sail panel frames is part number 20468876 but is difficult to locate via GM. They are still available from the Fiero Store (fierostore.com) for around $12 plus shipping.
If you are unable to find (or do not want to pay for) original emblems, there is an alternative that uses a slightly cheaper and newer version arrowhead emblem but requires some work as follows:
(1) Remove the old arrowhead emblem from the sail panel frame.
(2) Sand off the raised area which contained the old emblem until the surface is smooth.
(3) Repaint the sail panel frame (Plasti-Kote #616 Bumper Black).
(4) Install new peel-and-stick arrowhead emblem, GM Part No. 22591098. This part is $10.46 at gmpartsdirect as of April 2005. It is from a early '90s Pontiac Grand Am and looks better than the original emblem. It is only slightly larger than the original, about the size of the raised area on the sail panel.
REAR BUMPER "PONTIAC" EMBLEM
The "Pontiac" text on the rear fascia of some Fieros (part number 10055155) is no longer available but new emblems are now available from The Fiero Store (fierostore.com). If you do not want to replace the emblem, the mounting holes can be filled and painted. Alternative decals can be used to replace the original raised lettering.
Raised "Pontiac" lettering was used on late '80s and some early '90s Pontiacs (Grand Ams and Sunfire) but the size is different than the Fiero (some larger, some smaller). They are held in place with double-sided tape and do not have the locating protrusions on the back to fit holes in the bumper. It is possible to salvage these and apply them to the Fiero using new double-sided tape. However we do not know if the letters can be arranged to cover the holes in the Fiero bumper.
INDY PACE CAR WINGED EMBLEM
To replace the fender badge on the Indy pace car, go to your GM/Chevy dealer and have them look up P/N 88980647. That's the side badge for the 2004 Indy Impala SS. The badge is the same as a Fiero Indy with the exception there is no red stripe, but that can be added with a steady hand. The price was $69.00 in 2004.
ALTERNATIVE EMBLEMS
Small (about 5/8" high) metal "GT" emblems can be found on the interior front doors of late '80s Chevrolet Berettas. These typically come in red but occassionally in silver. Similar size "SE" emblems can be fround on late '80s Grand Ams, both in silver and red. Larger GT emblems (about 1.25" high) can be found on late '90s Pontiacs. The 1999 Grand Am had a small V-6 emblem on the front fender, part number 2265-8813. All of these emblems can be carefully removed and used on the Fiero.
DECK LID DECALS
Deck lid decals were used on all Fieros except the '86-88 GT to indicate the model. This included "Fiero Indy" in '84, "Fiero", "Fiero 2M4", "Fiero 2M6", and for 1985, "Fiero GT". Colors were typically silver (on a dark car) or Black/Dark Gray Metallic (on a light car). The Indy and GT decals also had a red pinstripe in some of the letters. We have seen some exceptions to this and suspect that dealers or owners may have used other colors. The silver typically fades after a few years and may appear gray or even white. Deck lid decals are no longer available from GM but can be found elsewhere on this web site.
DOOR & OTHER DECALS
Door decals were used only on the 1988 Formula ("FORMULA") and the 1984 Indy (pace car identification). Indy door decals were dealer-applied and some purchasers chose not to have them. The Indy also had a "PONTIAC" windshield decal and a dot-matrix "fade stripe" along the beltline of the car. With the exception of the "FORMULA" decal which was used on the Firebird, GM no longer has these decals. With the exception of the dot-matrix fade stripe, these decals can be found elsewhere on this web site. The fade stripe has been available from phoenixgraphix.com although you need to phone and request it separately.
Post by: GTRS Fiero on December 24, 2018, 06:32:21 pm
FRONT BUMPER FIERO LOGO
The front bumper emblem was gold in 1984/85 and made of metal and plastic. In 1986 it was changed to silver and made entirely of plastic. The GT model had "Fiero GT" in the emblem. Nose emblems are no longer available from GM but can be found used on eBay from time to time. The Fiero Store (fierostore.com) carries new inserts for around $25. This requires that you have the base of the emblem in which to insert the new badge. Some "New Old Stock" (NOS) badges have been available from fierodave.com but supply is limited.
SAIL PANEL EMBLEM
The "arrowhead" emblem on sail panel frames is part number 20468876 but is difficult to locate via GM. They are still available from the Fiero Store (fierostore.com) for around $12 plus shipping.
If you are unable to find (or do not want to pay for) original emblems, there is an alternative that uses a slightly cheaper and newer version arrowhead emblem but requires some work as follows:
(1) Remove the old arrowhead emblem from the sail panel frame.
(2) Sand off the raised area which contained the old emblem until the surface is smooth.
(3) Repaint the sail panel frame (Plasti-Kote #616 Bumper Black).
(4) Install new peel-and-stick arrowhead emblem, GM Part No. 22591098. This part is $10.46 at gmpartsdirect as of April 2005. It is from a early '90s Pontiac Grand Am and looks better than the original emblem. It is only slightly larger than the original, about the size of the raised area on the sail panel.
REAR BUMPER "PONTIAC" EMBLEM
The "Pontiac" text on the rear fascia of some Fieros (part number 10055155) is no longer available but new emblems are now available from The Fiero Store (fierostore.com). If you do not want to replace the emblem, the mounting holes can be filled and painted. Alternative decals can be used to replace the original raised lettering.
Raised "Pontiac" lettering was used on late '80s and some early '90s Pontiacs (Grand Ams and Sunfire) but the size is different than the Fiero (some larger, some smaller). They are held in place with double-sided tape and do not have the locating protrusions on the back to fit holes in the bumper. It is possible to salvage these and apply them to the Fiero using new double-sided tape. However we do not know if the letters can be arranged to cover the holes in the Fiero bumper.
INDY PACE CAR WINGED EMBLEM
To replace the fender badge on the Indy pace car, go to your GM/Chevy dealer and have them look up P/N 88980647. That's the side badge for the 2004 Indy Impala SS. The badge is the same as a Fiero Indy with the exception there is no red stripe, but that can be added with a steady hand. The price was $69.00 in 2004.
ALTERNATIVE EMBLEMS
Small (about 5/8" high) metal "GT" emblems can be found on the interior front doors of late '80s Chevrolet Berettas. These typically come in red but occassionally in silver. Similar size "SE" emblems can be fround on late '80s Grand Ams, both in silver and red. Larger GT emblems (about 1.25" high) can be found on late '90s Pontiacs. The 1999 Grand Am had a small V-6 emblem on the front fender, part number 2265-8813. All of these emblems can be carefully removed and used on the Fiero.
DECK LID DECALS
Deck lid decals were used on all Fieros except the '86-88 GT to indicate the model. This included "Fiero Indy" in '84, "Fiero", "Fiero 2M4", "Fiero 2M6", and for 1985, "Fiero GT". Colors were typically silver (on a dark car) or Black/Dark Gray Metallic (on a light car). The Indy and GT decals also had a red pinstripe in some of the letters. We have seen some exceptions to this and suspect that dealers or owners may have used other colors. The silver typically fades after a few years and may appear gray or even white. Deck lid decals are no longer available from GM but can be found elsewhere on this web site.
DOOR & OTHER DECALS
Door decals were used only on the 1988 Formula ("FORMULA") and the 1984 Indy (pace car identification). Indy door decals were dealer-applied and some purchasers chose not to have them. The Indy also had a "PONTIAC" windshield decal and a dot-matrix "fade stripe" along the beltline of the car. With the exception of the "FORMULA" decal which was used on the Firebird, GM no longer has these decals. With the exception of the dot-matrix fade stripe, these decals can be found elsewhere on this web site. The fade stripe has been available from phoenixgraphix.com although you need to phone and request it separately.
Post by: GTRS Fiero on December 24, 2018, 06:32:43 pm
The Fiero Engine Control Module (ECM) was used in several GM cars besides the Fiero but the PROM (Programmable Read Only Memory) chip within the ECM is unique to the Fiero. If an ECM is salvaged from another vehicle and installed in a Fiero, be sure to install the correct Fiero PROM. The PROM is unique for each engine/transmission combination. A PROM from a Fiero V-6 with manual transmission will not work in a Fiero V-6 with automatic transmission. Also, a PROM may not swap between years even if the engine/transmission combination is the same.
The cars below have ECMs that will swap into the Fiero.
'84 2.5L
Pontiac 2000 '84 1.8L w/o turbocharger
Pontiac 6000 '84 2.5L
Camaro '84 2.5L
Chevy Celebrity '84 2.5L
Buick Century '84 2.5L
Olds Ciera '84 2.5L
Chevy Citation '83 2.5L auto trans, 2.39 axle, ident #1226156
Chevy Citation '84 2.5L
Firebird '84 2.5L
Olds Firenza '84 2.5L
Olds Omega '83 2.5L auto trans, 2.39 axle, ident #1226156
Olds Omega '84 2.5L
Pontiac Phoenix '83 2.5L auto trans, 2.39 axle, ident #1226156
Pontiac Phoenix '84 2.5L
Buick Skyhawk '84 1.8L w/o turbocharger
Buick Skylark '84 2.5L
'85-86 2.5L
Pontiac 6000 '85-86 2.5L
Pontiac Astro '85-86 2.5L
Blazer S10/GM Jimmy S15 '85-86 2.5L
Olds Calais '85-86 2.5L
Camaro '85-86 2.5L
Chevy Celebrity '85-86 2.5L
Buick Century '85-86 2.5L
Olds Ciera '85-86 2.5L
Chevy Citation '85 2.5L
Olds Cutlass '86 2.5L
Firebird '85-86 2.5L
Olds Firenza '85-86 1.8L
Pontiac Grand Am '85-86 2.5L
S10/S15/GM Sonoma '85-86 2.5L
Pontiac Safari '85-86 2.5L
Buick Skyhawk '85-86 1.8L w/o turbocharger
Buick Skylark '85-86 2.5L
Buick Somerset '85-86 2.5L
Pontiac Sunbird '85-86 1.8L w/o turbocharger
'87-88 2.5L: ECM has identification #1227748
Pontiac 6000 '87-91 2.5L
Chevrolet Beretta '87-91 2.2L
Olds Calais '87-91 2.5L
Cavalier '90-91 2.2L
Chevy Celebrity '87-90 2.5L
Buick Century '87-92 2.5L
Chevy Forward Control '89 gasoline
Chevy Pickup '89 gasoline
Chevy Van '89 gasoline
Olds Ciera '87-92 2.5L
Chevy Corsica '90-91 2.2L
Olds Firenza '87-88 2.0L overhead cam
GMC Forward Control '89 gasoline
GMC Pickup '89 gasoline
GMC Van '89 gasoline
Pontiac Grand Am '87-91 2.5L
Buick Skyhawk '87 2.0L w/o turbocharger
Buick Skyhawk '88 overhead cam
Buick Skylark '87-91 2.5L
Buick Somerset '87 2.5L
Chevy Suburban '89 gasoline
Pontiac Sunbird '87-90 2.0L w/o turbocharger
Pontiac Sunbird '91 2.0L
Pontiac Tempest '90-91 2.2L
'85 2.8L: This ECM is unique to the 1985 Fiero.
'86-88 2.8L: This ECM is unique to the 1986-88 Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:33:09 pm
A "complete" engine means cylinder block and heads. It does not include accessories such as alternator, water pump, A/C compressor, etc., although some of these parts from a donor engine may coincidentally fit the Fiero.
'84-86 Fiero 2.5L Engine: Is the same as:
Pontiac 6000 '84-86 2.5L VIN "R"
Chevy Celebrity '84-86 2.5L VIN "R"
Buick Century '84-86 2.5L VIN "R"
Olds Cutlass Ciera '84-86 2.5L VIN "R"
Chevrolet Citation '84 2.5L VIN "R"
Olds Omega '84 2.5L VIN "R"
Pontiac Phoenix '84 2.5L VIN "R"
Buick Skylark '84-85 2.5L VIN "R"
'84-86 Fiero 2.5L Engine: The following engines can be used in a Fiero if injector and carburetor are switched, vacuum pump hole is covered, and distributors are changed. (These engines do not have the coil in the cap and they use a different distributor gear.)
Chevrolet Citation '80-81 2.5L VIN "5"
Olds Omega '80-81 2.5L VIN "5"
Pontiac Phoenix '80-81 2.5L VIN "5"
Buick Skylark '80-81 2.5L VIN "5"
'84-86 Fiero 2.5L Engine: The following engines can be used in a Fiero if the vacuum pump hole is covered.
Pontiac 6000 '82-83 2.5L VIN "R"
Chevrolet Celebrity '82-83 2.5L VIN "R"
Buick Century '82-83 2.5L VIN "R"
Olds Cutlass Ciera '82-83 2.5L VIN "R"
Chevrolet Citation '82-83 2.5L VIN "R"
Olds Omega '82-83 2.5L VIN "R"
Pontiac Phoenix '82-83 2.5L VIN "R"
Buick Skylark '82-83 2.5L VIN "R"
'87 Fiero 2.5L Engine: The following engines can be used in a Fiero except for the flywheel or flexplate. Change induction, exhaust, and electrical systems, pilot bushings as necessary. Will not interchange with '88 engines due to oil pan interference with frame.
Pontiac 6000 '87 2.5L VIN "R"
Chevrolet Celebrity '87 2.5L VIN "R"
Buick Century '87 2.5L VIN "R"
Olds Cutlass Ciera '87 2.5L VIN "R"
The following information was posted to Pennock's Fiero Forum by "Ray" from Houston, TX:
It is possible to get a better 2.5L engine for the '87-88 2.5L Fiero from a 1993 S-10. The 2.5L engine from the '93 S-10 should provide over 100 HP and considerably better mileage.
'88 Fiero 2.5L Engine: The following engines can be used in a Fiero except for the flywheel or flexplate. Change induction, exhaust, and electrical systems, pilot bushings as necessary. Will not interchange with '87 engines due to oil pan interference with frame.
Pontiac 6000 '88-89 2.5L VIN "R"
Chevrolet Celebrity '88-89 2.5L VIN "R"
Buick Century '88-89 2.5L VIN "R"
Olds Cutlass Ciera '88-89 2.5L VIN "R"
'85-88 Fiero 2.8L: The 2.8L Fiero VIN "9" engines are unique. There are no other automobile engines EXACTLY like these that can be dropped into a Fiero. However, other engines will fit with minor modifications noted below.
The following engines can be used in the Fiero by changing the intake manifolds, exhaust manifolds, fuel delivery system, and removing the power steering brackets:
Pontiac 6000 '82-84 2.8L VIN "X" & VIN "Z"
Pontiac 6000 '85-86 2.8L Two-barrel carb VIN "X"
Chevrolet Celebrity '82-84 2.8L VIN "X"
Chevrolet Celebrity '85-86 2.8L Two-barrel carb VIN "X"
Buick Century '82-86 2.8L VIN "X"
Olds Cutlass Ciera '82-85 2.8L VIN "X"
Olds Cutlass Ciera '86 2.8L Two-barrel carb VIN "X"
Chevrolet Citation '82-84 2.8L VIN "X" & VIN "Z"
Olds Omega '82-84 2.8L VIN "X" & VIN "Z"
Pontiac Phoenix '82-83 2.8L VIN "X" & VIN "Z"
Buick Skylark '82-84 2.8L VIN "X" & VIN "Z"
Buick Skylark '85 2.8L Two-barrel carb VIN "X"
'85-88 Fiero 2.8L: The following engines can be used in the Fiero by changing the intake and exhaust manifolds and removing the power steering brackets:
Pontiac 6000 '85'-86 2.8L EFI, VIN "W"
Chevrolet Celebrity '85'-86 2.8L EFI, VIN "W"
Olds Cutlass Ciera '86 2.8L EFI, VIN "W"
Chevrolet Citation '85 2.8L EFI, VIN "W"
Buick Skylark '85 2.8L EFI, VIN "W"
'85-88 Fiero 2.8L: The following engines can be used in the Fiero by changing the intake and exhaust manifolds, drive belt system, and removing the power steering brackets:
Chevrolet Cavalier '85-86 2.8L VIN "W"
Cadillac Cimarron '85-86 2.8L VIN "W"
Olds Firenza '85-86 2.8L VIN "W"
NOTE 1: A popular swap for the Fiero 2.8L engine is a 3.4L engine from a '93-95 Camaro or Firebird. This engine requires simple modifications that are beyond the scope of this manual. Other popular swaps are the Chevrolet Small Block V8 and the Cadillac 4.9L V8. For more information check v8archie.com and thefierofactory.com.
NOTE 2: New engine mounts are appropriate when replacing an engine. The 1988 mounts can be expensive. Robert Lachance advises that you can use the front engine mount from a early '90s Pontiac Transport 3.8 (non-supercharged) on a 1988 2.8L Fiero engine for about $100 less than the Fiero-specific mount from parts stores. No modification is required. We don't have the part number at this time but Robert reports the mount is available from GM dealers. If anyone can provide the part number, please let us know.
Post by: GTRS Fiero on December 24, 2018, 06:33:26 pm
EVAPORATOR CORE: Two air conditioner evaporator cores were used in the Fiero, one in '84 and one in all '85-88 Fieros. This evaporator core is unique and not used in other cars. As far as we have been able to determine, aftermarket units are no longer available and the best recourse is a used one. Fortunately they do not wear out often.
For the record, the '84 Fiero used GM Part No. 3054185 (AC Delco 15-6398). The '85-88 Fieros used GM Part No. 3090045 (AC Delco 15-6544 or Delphi EP1054). You may get lucky and find one under one of the above numbers.
Post by: GTRS Fiero on December 24, 2018, 06:33:48 pm
The exhaust manifolds in the 2.5L Fiero are found in several other GM cars but the manifolds in the 2.8L Fiero are unique. Unfortunately the 2.8L manifolds are prone to cracking and leakage. Repair by welding or replacement with used exhaust manifolds are the only options with a 2.8L engine (other than aftermarket performance headers or exhaust pipe modifications). If you are willing to make customized exhaust piping, manifolds from many 2.8/3.1/3.4 engine will bolt to the Fiero heads. Note that the Fiero manifolds are stainless steel.
That said, there is one set of cast iron exhaust manifolds that will bolt to the 2.8L Fiero which requires only minor modification to the downstream exhaust piping. These are the manifolds from the 1989/90 Grand Prix Turbo (Turbo ONLY). The Fiero Y-pipe requires bending to match the manifolds and this can be done using a vice and a 2" pipe for additional leverage. A benefit of using the Grand Prix manifolds is reduced noise in the cockpit.
A company called AM Autoparts (am-autoparts.com) lists a new manifold for the Fiero 2.5L engine for about $100 (March 2010) with free shipping.
Exhaust Manifold Bolts, 2.8L
We'll say it up front: Replacement bolts for the 2.8L exhaust manifold are available as Dorman Part No. 03411. It is a set of 10 studs with locking nuts for Ford V8s. Typically available at auto parts stores - ask for them by number.
'84-87 2.5L
Pontiac 6000 '83-91 2.5L
Pontiac Astro '85-90 2.5L
Olds Calais '85-91 2.5L
Camaro '82-86 2.5L
Chevy Celebrity '83-90 2.5L
Buick Century '83-92 2.5L
Olds Ciera '83-92 2.5L
Chevy Citation '83-85 2.5L
Firebird '82-86 2.5L
Pontiac Grand Am '85-91 2.5L
Olds Omega '83-84 2.5L
Pontiac Phoenix '83-84 2.5L
Pontiac Safari '85-90 2.5L
Buick Skylark '83-91 2.5L
Buick Somerset '85-87 2.5L
We have read that the exhaust manifolds in the 1990-1993 S-10, S-15, and Blazer will fit the '87-88 Fiero 4 cylinder engine but we have not been able to confirm this.
'88 2.5L
Chevy Lumina Car '90-92 2.5L
'85-88 2.8L, Front: This manifold is unique. No interchange available.
'85-88 2.8L, Rear: This manifold is unique. No interchange available.
Aftermarket Exhaust Parts:
Exhaust Kit (flange, gasket, bolts), 2.5L,'84-88 Help! 03126
Exhaust Manifold, 2.5L, '87 Manifold Plus 674-101
Muffler, all years Walker 40094
Left megaphone tip Walker 35866
Right megaphone tip Walker 35867
Exhaust hanger springs Walker 35722, 10 reqd
Left exhaust tip hanger Fiero Store 60189
Right exhaust tip hanger Fiero Store 64158
Catalytic Converter rodneydickman.com
Post by: GTRS Fiero on December 24, 2018, 06:34:11 pm
FAN & MOTOR: Five different fan motors and four different fans were used in the Fiero during its lifetime and replacements for all of them are easily available. So many GM cars used the same fan and motor we are not taking the space to list them.
We understand that an aftermarket fan made by Spal Automotive will work well in the Fiero with slight modification. You must cut the four arms that hold the original fan and motor flush with the shroud so the Spal will fit. The fan is very well balanced, has a low power draw, and moves about twice as much air as the stock Fiero fan. The fan is a 16 inch Spal Model Number SPA30100231 and is available from Spal at www.spal-usa.com/html/spalhome.htm
Another fan reported to work well is Perma-Cool 19115, a 16-inch fan with aluminum blades that claims to move air at 2950 cubic feet per minute. The cost in 2009 was about $127 from Summit Racing (summitracing.com) and from JEGs (jegs.com).
We also understand that many 16" fans on newer vehicles can be modified to work on the Fiero and that doing so will provide benefits of higher fan efficiency and lower current draw.
Post by: GTRS Fiero on December 24, 2018, 06:34:27 pm
It is convention that a "flywheel" is used only in manual transmissions. A "flexplate" is used in automatic transmissions. Here we are concerned only with flywheels.
'84-88 2.5L: Flywheels from donor cars must be from similar manual transmissions.
Olds Calais '85-87
Olds Calais '88-91 2.5L
Chevy Celebrity '84-85 2.5L
Chevy Celebrity '86
Chevy Celebrity '87-88 2.5L
Chevy Citation '80-85 2.5L
Pontiac Grand Am '85-86
Pontiac Grand Am '87-91 2.5L
Olds Omega '80-84 2.5L
Pontiac Phoenix '80-84 2.5L
Buick Skylark '80-85 2.5L
Buick Skylark '86-87
Buick Skylark '88-89 2.5L
Buick Somerset '85-87
'85-87 2.8L: Flywheels from donor cars must be from similar manual transmissions.
Cavalier '85-86 2.8L
Cadillac Cimarron '85-86 2.8L
Chevy Citation '80-85 2.8L
Olds Firenza '85-86 2.8L
Olds Omega '80-84 2.8L
Pontiac Phoenix '80-84 2.8L
Buick Skylark '80-85 2.8L
'88 2.8L: Flywheels from donor cars must be from similar manual transmissions.
Pontiac 2000 '82
Pontiac 2000 '83-84 2.0L
Pontiac 6000 '87-88
Chevrolet Beretta '87-89
Chevrolet Beretta '90-93 2.2L
Chevrolet Beretta '90-93 3.1L
Chevrolet Beretta '94 2.2L
Chevrolet Beretta '95-96
Cavalier '82-84
Cavalier '85-86 2.0L
Cavalier '87-94
Cavalier 95-98 2.2L
Chevy Celebrity '87-88 2.8L
Cadillac Cimarron '82-84
Cadillac Cimarron '85-86 2.0L
Cadillac Cimarron '87-88 2.8L
Chevy Corsica '87-96
Olds Cutlass '88-89 2.8L front wheel drive
Olds Firenza '82
Olds Firenza '83-86 2.0L
Olds Firenza '87 2.0L VIN "1"
Olds Firenza '87 2.8L
Olds Firenza '88 2.0L VIN "1"
Pontiac Grand Prix '88-90 2.8L
Hombre '96
Hombre '97-98 2.2L
Isuzu Pickup '91-94 3.1L TBI
Isuzu Rodeo '91-92 3.1L 6-bolt transmission cover
S10/15/GM Sonoma '94-98 2.2L
Buick Skyhawk '82
Buick Skyhawk '83-86 2.0L
Buick Skyhawk '87-88 VIN "1"
Buick Skyhawk '89
Pontiac Sunbird '85-86 2.0L
Pontiac Sunbird '91-94 3.1L
Sunfire '95-98 2.2L
Pontiac Tempest '87-93
Isuzu Trooper '89-91 2.8L
'84-87 2.5L: Transmission identification numbers 10018182 and 10044361. Flywheels from donor cars must be from similar manual transmissions. Flywheels listed for the '88 2.5L will also work in the '84-87 2.5L by removing the starter shim.
Pontiac 6000 '82-87 2.5L
Pontiac Astro '85-87 2.5L
Olds Calais '85-87 2.5L
Camaro '82-85 2.5L
Chevy Celebrity '82-87 2.5L
Buick Century '82-87 2.5L
Olds Ciera '82-87 2.5L
Chevy Citation '82-85 2.5L
Firebird '82-85 2.5L
Pontiac Grand Am '85-87 2.5L
Olds Omega '82-84 2.5L
Pontiac Phoenix '82-84 2.5L
Pontiac Safari '85-87 2.5L
Buick Skylark '82-87 2.5L
Buick Somerset '85-87 2.5L
'88 2.5L: Transmission identification numbers 10031262 and 10044361. Flywheels from donor cars must be from similar manual transmissions.
Pontiac 6000 '88-91 2.5L
Pontiac Astro '88-90 2.5L
Olds Calais '88-91 2.5L
Chevy Celebrity '88-90 2.5L
Buick Century '88-92 2.5L
Olds Ciera '88-92 2.5L
Pontiac Grand Am '88-91 2.5L
Chevy Lumina Car '88-92 2.5L
Pontiac Safari (GMC) '88-90 2.5L
Buick Skylark '88-91 2.5L
'85-87 2.8L: Transmission identification numbers 14033299, 14085471. Flywheels from donor cars must be from similar manual transmissions.
Pontiac 6000 '82-86 2.8L
Cavalier '85-86 2.8L
Chevy Celebrity '82-86 2.8L
Buick Century '82-86 2.8L
Olds Ciera '82-86 2.8L
Cadillac Cimarron '85-86 2.8L
Chevy Citation '82-85 2.8L
Olds Firenza '85-86 2.8L
Olds Omega '82-84 2.8L
Pontiac Phoenix '82-84 2.8L
Buick Skylark '82-85 2.8L
'88 2.8L: Transmission identification numbers 10218513, and 14018713. Flywheels from donor cars must be from similar manual transmissions.
Pontiac 2000 '82
Pontiac 2000 '83-84 2.0L
Pontiac 6000 '87-89 2.8L
Pontiac 6000 '88-91 3.1L
Achieva '94-98 3.1L
Chevrolet Beretta '87-96
Cavalier '82-84
Cavalier '85-86 2.0L
Cavalier '87-94
Cavalier '95-98 2.2L
Chevy Celebrity '87-89 2.8L
Chevy Celebrity '90 3.1L
Buick Century '87-89 2.8L
Buick Century '93 2.2L
Buick Century '94-96
Buick Century '98
Olds Ciera '87-89 2.8L
Olds Ciera '93 2.2L
Olds Ciera '94-96
Cadillac Cimarron '82-84
Cadillac Cimarron '85-86 2.0L
Cadillac Cimarron '87-88
Chevy Corsica '87-96
Olds Cutlass '88-89 2.8L front wheel drive
Olds Cutlass '89-91 3.1L front wheel drive
Olds Cutlass '91 3.4L front wheel drive
Olds Cutlass '92-96 front wheel drive
Olds Cutlass Supreme '97 front wheel drive
Olds Firenza '82
Olds Firenza '83-86 2.0L
Olds Firenza '87 2.0L VIN "1"
Olds Firenza '87 2.8L
Olds Firenza '88 2.0L VIN "1"
Pontiac Grand Am '94-98 3.1L
Pontiac Grand Prix '88-89
Pontiac Grand Prix '90-91 3.1L
Pontiac Grand Prix '91 3.4L
Pontiac Grand Prix '92-96
Pontiac Grand Prix '97-98 3.1L
Chevy Lumina Car '90-92 3.1L
Chevy Lumina Car '91-92 3.4L
Chevy Lumina Car '93-96
Chevy Lumina Car '97 3.4L
Chevy Lumina Van '90-95 3.1L
Chevy Lumina Van '96
Chevy Monte Carlo '95-96
Chevy Monte Carlo '97 3.4L
Olds Regal '88-89
Olds Regal '90-96 3.1L
Isuzu Rodeo '91-92
Olds Silhouette '90-91
Olds Silhouette '92-95 3.1L
Olds Silhouette '96-98
Buick Skyhawk '82
Buick Skyhawk '83-86 2.0L
Buick Skyhawk '87-88 VIN "1"
Buick Skyhawk '89
Buick Skylark '94-98 3.1L
Pontiac Sunbird '85-86 2.0L
Pontiac Sunbird '91-94 3.1L
Sunfire '95-98 2.2L
Pontiac Tempest '87-93
Pontiac Trans Sport '90-91
Pontiac Trans Sport '92-95 3.1L
Pontiac Trans Sport '96-98
Isuzu Trooper '90-91 2.8L
Venture '97-98
Flywheel Shims: If a flywheel is resurfaced flywheel shims are required to move the face of the flywheel back to it's original location or the clutch will not engage properly. Flywheel shims are available from most auto parts stores. The following "off-the-shelf" shims are also available:
Flywheel Shims, 2.8L '85-88 0.025" Clutch-In 15260
Flywheel Shims, 2.8L '85-88 0.050" Clutch-In 15261
Post by: GTRS Fiero on December 24, 2018, 06:34:46 pm
FRAME '84-88: The space frame on the Fiero will swap among all years. However the front and rear suspension systems are different on the '88 Fiero and not conducive to easy swaps to earlier years. No other vehicle used the Fiero frame so replacement of damaged parts must be from a donor Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:35:12 pm
FRONT GRILL: The '84-86 Fieros have a front grill which is unique. Replacements must come from donor vehicles.
Post by: GTRS Fiero on December 24, 2018, 06:35:28 pm
The 2.5L Fiero uses an in-tank electric fuel pump which has a working pressure of about 10 psi. The 2.8L Fiero has a similar pump with a working pressure of about 40 psi. There are many GM cars which use similar pumps. Since it is tedious to replace an in-tank pump, we suggest using new rather than used. New pumps are available at auto parts stores and we strongly suggest you purchase only AC Delco brand.
'84 Fiero
Buick Century '85 2.5L mechanical speedometer
Buick Century '82-84 2.5L
Buick Skyhawk '82 1.8L EFI
Buick Skyhawk '83
Buick Skyhawk '84 1.8L w/o turbocharger
Buick Skyhawk '84 2.0L
Buick Skylark '82-85 2.5L
Cadillac '81 6.0L commercial chassis
Cadillac '81 6.0L DeVille
Cadillac '81 6.0L Fleetwood
Cadillac '82 4.1L
Cadillac '82 6.0L EFI
Cadillac '85 4.1L front wheel drive, early
Cadillac '85 4.1L rear wheel drive
Cadillac '83-84 4.1L
Cadillac '83-84 6.0L EFI
Cadillac Cimarron '83-84 2.0L
Cadillac Eldorado '81 6.0L
Cadillac Eldorado '82-85 4.1L
Cadillac Seville '81 6.0L
Cadillac Seville '82 1.8L EFI
Camaro '82-84 2.5L
Cavalier '83-84 2.0L
Chevy Celebrity '82-85 2.5L
Chevy Citation '82-85 2.5L
Chevy Monte Carlo '85-87 4.3L
Chevy Passenger '90 4.3L
Firebird '82-84 2.5L
Olds Ciera '85 2.5L mechanical speedometer
Olds Ciera '82-84 2.5L
Olds Firenza '82 1.8L EFI
Olds Firenza '83-84
Olds Omega '82-84 2.5L
Pontiac 2000 '82 1.8L EFI
Pontiac 2000 '83
Pontiac 2000 '84 1.8L
Pontiac 2000 '84 1.8L w/o turbocharger
Pontiac 6000 '82-85 2.5L
Pontiac Grand Prix '86-87 4.3L
Pontiac Phoenix '82-84 2.5L
'85-86 2.5L Fiero
Blazer S10/GM Jimmy S15 '86 2.8L
Blazer S10/GM Jimmy S15 '85-86 2.5L
Buick Century '85 2.5L electronic speedometer
Buick Century '86 2.5L
Buick Skyhawk '85-86 1.8L without turbocharger
Buick Skyhawk '85-86 2.0L
Buick Skylark '86 2.5L
Buick Somerset '85-86 2.5L
Cadillac '85 4.1L front wheel drive, late
Cadillac '86 4.1L
Cadillac Cimarron '85-86 2.0L
Camaro '85-86 2.5L
Cavalier '85-86 2.0L
Chevy Celebrity '86 2.5L
Chevy Malibu '85-87 4.3L
Chevy Passenger '85 4.3L
Chevy Passenger '86 4.3L early
Chevy Sprint (GMC) '85-87 4.3L
Firebird '85-86 2.5L
Olds Calais '85-86 2.5L
Olds Ciera '85 2.5L electronic speedometer
Olds Ciera '86 2.5L
Olds Firenza '87 2.0L overhead cam
Olds Firenza '85-86 1.8L
Olds Firenza '85-86 2.0L
Pontiac '85 4.3L
Pontiac '86 4.3L Parisienne, early
Pontiac 6000 '86 2.5L
Pontiac Astro '85 2.5L
Pontiac Astro '86
Pontiac Grand Am '85-86 2.5L
Pontiac Safari (GMC) '85 2.5L
Pontiac Safari (GMC) '86
Pontiac Sunbird '87 2.0L without turbocharger
Pontiac Sunbird '85-86 1.8L without turbocharger
Pontiac Sunbird '85-86 2.0L
S10/S15/GM Sonoma '85 2.5L
S10/S15/GM Sonoma '86
'87-88 2.5L Fiero
Blazer S10/GM Jimmy S15 '87 2.5L
Blazer S10/GM Jimmy S15 '87 2.8L
Blazer S10/GM Jimmy S15 '88 2.5L
Blazer S10/GM Jimmy S15 '88 2.8L
Blazer S10/GM Jimmy S15 '88 4.3L
Blazer S10/GM Jimmy S15 '89 2.8L
Blazer S10/GM Jimmy S15 '89 4.3L
Blazer S10/GM Jimmy S15 '90-91 4.3L
Blazer S10/GM Jimmy S15 '92-94 4.3L TBI
Buick Skyhawk '87 2.0L OHC w/out turbocharger
Buick Skylark '87 2.5L
Buick Somerset '87 2.5L
Chevy Celebrity '87 2.5L
Chevy Celebrity '88 2.5L "APH" on pump harness
Chevy Lumina Van '90-95 3.1L
Chevy Monte Carlo '88 4.3L
Chevy Passenger '86 4.3L late
Chevy Passenger '87-89 4.3L
Olds Bravada '91 4.3L
Olds Bravada '92 4.3L TBI
Olds Calais '87 2.5L
Olds Ciera '87 2.5L
Olds Ciera '88 2.5L "APH" on pump harness
Olds Silhouette '90-91
Olds Silhouette '92-95 3.1L
Pontiac '86 4.3L Parisienne, late
Pontiac 6000 '87 2.5L
Pontiac 6000 '88 2.5L "APH" on pump harness
Pontiac Astro '87-91
Pontiac Astro '92-94 4.3L TBI
Pontiac Grand Am '87 2.5L
Pontiac Safari (GMC) '87-91
Pontiac Safari (GMC) '92-94 4.3L TBI
Pontiac Trans Sport '90-91
Pontiac Trans Sport '92-95 3.1L
S10/S15/GM Sonoma 92-93 2.8L
S10/S15/GM Sonoma 92-95 4.3L TBI
S10/S15/GM Sonoma '87-91
S10/S15/GM Sonoma '92-93 2.5L
'85-87 2.8L Fiero
Buick '85 3.8L front wheel drive
Buick '86 3.0L
Buick '86 3.8L
Buick '88 3.8L "HEL & HEM" on pump harness
Buick Century '87 2.8L except Station Wagon
Buick Century '87 3.8L except Station Wagon
Buick Century '84-86 3.8L
Buick Reatta '88
Buick Skyhawk '87 2.0L turbocharged
Buick Skyhawk '84-86 1.8L turbocharged
Buick Skylark '85 2.8L EFI
Buick Skylark '86-87 3.0L
Buick Somerset '85-87 3.0L
Cadillac Allante '87
Cadillac Cimarron '87
Cadillac Cimarron '85-86 2.8L
Cadillac Eldorado '87 "EP 176" on pump harness
Cadillac Seville '87 "EP 176" on pump harness
Camaro '85-89 2.8L
Camaro '90-92 3.1L
Cavalier '85-87 2.8L
Chevrolet Beretta '87 2.8L
Chevrolet Beretta '88 2.8L VIN 200,001-500,000
Chevy Celebrity '87 2.8L except Station Wagon
Chevy Celebrity '85-86 2.8L EFI
Chevy Citation '85 2.8L EFI
Chevy Corsica '87 2.8L
Chevy Corsica '88 2.8L VIN 2000,000-500,000
Firebird '85-89 2.8L
Firebird '90-92 3.1L
Olds '85 3.8L FWD, mechanical speedometer
Olds '86 3.0L
Olds '86 3.8L
Olds '88 3.8L "HEL & HEM" on pump harness
Olds Calais '85-86 3.0L
Olds Ciera '86 2.8L EFI
Olds Ciera '86 3.8L
Olds Ciera '87 2.8L except Station Wagon
Olds Ciera '87 3.8L except Station Wagon
Olds Ciera '84-85 3.8L
Olds Cutlass '88 2.8L "WEC 07" on pump harness
Olds Firenza '85-87 2.8L
Olds Regal '88 2.8L "WEC 07" on pump harness
Olds Riviera '86-88
Olds Toronado '86-87
Pontiac '87 3.8L
Pontiac '88 3.8L "HEL" on pump harness
Pontiac 2000 '84 1.8L turbocharger
Pontiac 6000 '87 2.8L except Station Wagon
Pontiac 6000 '85-86 2.8L EFI
Pontiac Grand Am '87 2.0L
Pontiac Grand Am '87 3.0L
Pontiac Grand Am '85-86 3.0L
Pontiac Grand Prix '88 2.8L "WEC 07" on pump harness
Pontiac Sunbird '87 2.0L turbocharged
Pontiac Sunbird '85-86 1.8L turbocharged
Pontiac Tempest '87 2.8L
Pontiac Tempest '88 2.8L VIN 200,001-500,000
'88 2.8L Fiero: Code "WAD" or "WAE" will be found on the pump harness
Buick Reatta '89-91
Buick Skylark '88 2.3L
Buick Skylark '88 3.0L
Buick Skylark '89-91 2.3L
Buick Skylark '89-91 3.3L
Cadillac Allante '88
Cadillac Cimarron '88
Cadillac Eldorado '90-92
Cadillac Seville '90-92
Cavalier '88-89 2.8L
Cavalier '90-91 3.1L
Chevrolet Beretta '88 2.8L VIN 500,001 and greater
Chevrolet Beretta '89 2.8L
Chevrolet Beretta '92
Chevrolet Beretta '90-91 2.3L
Chevrolet Beretta '90-91 3.1L
Chevy Corsica '88 2.8L VIN 500,001 and greater
Chevy Corsica '89 2.8L
Chevy Corsica '92
Chevy Corsica '90-91 3.1L
Chevy Lumina Car '91 3.4L
Chevy Lumina Car '92 3.1L gasoline
Chevy Lumina Car '92 3.4L
Chevy Lumina Car '93 3.1L gasoline
Chevy Lumina Car '93 3.4L
Chevy Lumina Car '94 3.1L
Chevy Lumina Car '94 3.4L
Chevy Lumina Car '96 3.1L
Chevy Lumina Car '90-91 3.1L
Chevy Monte Carlo '95
Chevy Monte Carlo '96 3.1L
Olds Calais '88 2.3L
Olds Calais '88 3.0L
Olds Calais '89-91 2.8L
Olds Calais '89-91 3.3L
Olds Cutlass '89 2.8L
Olds Cutlass '89 3.1L
Olds Cutlass '90 2.3L
Olds Cutlass '90 3.1L
Olds Cutlass '91 2.3L
Olds Cutlass '91 3.1L
Olds Cutlass '91 3.4L
Olds Cutlass '96 3.1L
Olds Cutlass '92-95 3.1L
Olds Cutlass '92-95 3.4L
Olds Regal '96 3.1L
Olds Regal '89-95
Olds Riviera '89-93
Olds Toronado '88-92
Pontiac Grand Am '88-89 2.0L
Pontiac Grand Am '88-91 2.3L
Pontiac Grand Prix '96 3.1L
Pontiac Grand Prix '89-90 2.8L
Pontiac Grand Prix '89-90 3.1L w/o turbocharger
Pontiac Grand Prix '91-95
Pontiac Sunbird '91 3.1L
Pontiac Sunbird '88-90 turbocharged
Pontiac Tempest '88 2.8L VIN 500,001 and greater
Pontiac Tempest '89 2.8L
Pontiac Tempest '92
Pontiac Tempest '90-91 3.1L
Post by: GTRS Fiero on December 24, 2018, 06:35:48 pm
Harmonic Balancer: The harmonic balancer for the V-6 has been discontinued by GM but part number 14085401 will fit if the timing marks from your old harmonic balancer are transferred carefully to the new one. Don't try to use the timing marks on the new balancer; they are 60 degrees off!
We have no information on harmonic balancers for the 4 cylinder Fiero other than the aftermarket version shown below. Since so many 4 cylinder engines were used on other cars the balancers are probably still available from GM. It is also reasonable to assume that if an engine will swap into a Fiero (see the "Engine" section), so will the harmonic balancer from that engine.
A harmonic balancer for the 2.8L V6 (or any engine) can be obtained from the Damper Doctor, http://damperdoctor.com/. Their dampers are rebuilt with new parts where needed and the timing mark correctly placed. Quality is reported to be excellent. The cost is around $71 plus shipping.
Some aftermarket balancers for the Fiero are shown below.
Harmonic Balancer, 2.5L, '87-88 Dorman 594-027
Harmonic Balancer, 2.8L, '85-87 Dorman 594-013
Harmonic Balancer, 2.8L, '88 Dorman 594-008
And these:
From Auto Zone for Fiero V6 (in 2002):
Pioneer DA-1731 (replaces OE# 14083394) 73.99
Pioneer DA-1733 (replaces OE# 14085401) 67.99
1 year warranty on them. Auto Zone only sells new balancers.
.
Post by: GTRS Fiero on December 24, 2018, 06:36:04 pm
The headlight adjusting screw doesn't warrant much attention, but if you have tried to adjust a rusty screw you might appreciate that you can get a replacement at your local auto parts store. It is Help! 42161 and will fit all Fieros.
Post by: GTRS Fiero on December 24, 2018, 06:36:23 pm
HEADLIGHT MOTORS '84-86: Headlight motors in '84-86 Fieros are notorious for failure which is not surprising considering their age and lack of maintenance. Replacements are available from GM but are expensive. Used and rebuilt motors are frequently sold on eBay.
Headlight motors in the '82-86 Firebird are the same as the '84-86 Fiero although they must swap sides to fit the Fiero.
The '84-86 Fiero headlight motors can use the brush assembly from Cadillac antenna motors ('91-'93 work, maybe other years), but the single "down" wire will need the Fiero connector spliced on. Most junkyards have the antenna motors and the brush assemblies are usually in good shape. When a Cadillac antenna motor fails it is usually the plastic drive cable.
Headlight motor repairs are simple for the shade tree mechanic and parts are available from the vendors listed below.
Rodney Dickman http://www.rodneydickman.com
The Fiero Store http://www.fierostore.com
Alan Mooty, 8061 Nicklaus drive, Orlando, FL 32825 (407) 275-5040
Headlight Motors'87-88: Headlight motors on the '87-88 Fiero have an improved design compared to the earlier years but still fail due to age. Replacements are available from GM but are expensive. Used and rebuilt motors are frequently sold on eBay. Repairs are simple, more so than earlier years. We understand that headlight motors from the following cars will fit the '87-88 Fiero:
- Buick Reatta (all years - may require different control module; see below)
- 1986-89 Pontiac Sunbird*
- 1988-96 Corvette
- 1987-92 Firebird (must swap sides to fit Fiero)
- 1988-02 Lotus Esprit
- 1988-04 Lotus Elan (most)
- 1990-92 Toranado Trofeo (may require different control module; see below)
*Not all Sunbird motors from these years will swap. On some, the mounting holes on the Sunbird motors do not aline with the mounting holes in the Fiero headlight buckets on either side. Our thanks to Jim Moreland for this nugget.
Headlight Control Modules: The headlights in the '87-88 Fiero are controlled by an electronic module found beneath the left front fender behind the fender well. The module (part no. 16523917) was used on the following cars:
'97-04 Corvette
'87-89 Firebird
'86-89 Pontiac Sunbird
'86-89 Buick Skyhawk
In April of 2010 new replacement modules were still available from gmpartsdirect.com for about $175 plus shipping. This makes a salvaged unit pretty attractive!
An identical looking module (part no. 16525685) was used on the '90-94 Sunbird, '90-02 Firebird, '90-92 Olds Toronado/Trofeo and '90-92 Buick Reatta. That module will NOT interchange with the Fiero.
Headlight Relay, '84-86: This relay is still available from GM (part number 22059694) but can be replaced by the GM power antenna relay (part number 12337964) which can be found in any salvage yard.
Parts to repair '87-88 headlight motors are available from the vendors listed above.
On-line articles to assist with do-it-yourself repair are at:
http://www.geocities.com/MotorCity/Garage/5007/fiero_osg/headlights.html
http://www.fierosails.com/headlights.html
Headlight Switch, '84-86: The headlight switch is a frequent culprit when problems occur with the headlight system. The switch is Wells SW235, typically available at auto parts stores for around $14. It can also be obtained from GM.
Post by: GTRS Fiero on December 24, 2018, 06:36:41 pm
HEATER CORE: Two heater cores were used in the Fiero, one for cars with air conditioning, another for cars without. See photo below. The core size is the same for all years but for cars with A/C the inlet/outlet pipes on the heater core are longer and offset. The heater cores are unique and not used in other vehicles so the only source for salvaged units is another Fiero. Aftermarket units are readily available from chain auto parts stores such as AutoZone, Rock Auto, etc., as well as places such as Auto Radiator Outlet at 800-252-0333. The AC Delco heater core part number for an '84-88 Fiero with A/C is 15-60038.
A company called Ready-Aire (factory is in Mexico) makes a replacement heater core for Fieros with A/C that works fine. We have used it successfully in our two Fieros. This particular core is stocked by several companies under their specific part number as follows:
Ready-Aire 398203
Fedco 2-469
NAPA 3310
Four Seasons 94498
Everco 6201
Stant 90203
Murray 279157
As of 12/10/08 we found the heater core at rockauto.com for $45.89 using the Four Seasons part number 94498. We also found it at advanceauto.com for $46.99 and at autozone.com for $41.99 under the Ready-Aire number 398203.
If the heater core cannot be replaced it usually can be repaired by a competent radiator shop.
When removing a leaky heater core the hoses will often be bonded to the inlet and outlet pipes making it very difficult to remove the hoses without damaging them. Since the heater core will be replaced anyway, we suggest you use pliers, Vise Grips, etc., to squeeze the hoses at the inlet/outlet pipes, thus crushing the pipes beneath the hose and breaking the bond. You may need to crush the hose at 90 degree positions to be effective. Avoid the use of serrated jaws to protect the hoses from damage, or wrap serrated jaws with duct tape, etc., to relieve any sharp edges. With the inlet/outlet pipes crushed, removing the hoses without damaging them is a lot easier.
If you plan to replace the heater hoses also, then the fast way to remove the heater core is to cut the hoses near the inlet/outlet pipes. Just make sure you have replacement hoses in hand before you cut the hoses!
Post by: GTRS Fiero on December 24, 2018, 06:36:59 pm
HOOD VENTS: Hood vents are not a stock item on the Fiero but many owners like to add them to their cars. Late '80s Turbo Pontiac Sunbirds have vents that look nice on a Fiero and they let air escape from under the hood.
DECK LID VENTS: Another popular addition to the Fiero is a deck lid vent. The hood scoop from a 1999 Mustang looks good and is frequently used for this purpose. Below are a couple of sources for scoops:
http://www.fibersmith.net/fiero.html
http:www.brothersperformance.com/shop/mustang/hood-scoop.html
Other aftermarket scoops can be found via an Internet search.
Post by: GTRS Fiero on December 24, 2018, 06:37:16 pm
IGNITION COIL: Many GM cars used the same ignition coil as the Fiero. Both used and new are easily found. Aftermarket coils are also available from suppliers such as MSD, Crane, and Jacobs.
'84 Fiero:
Blazer/GM Jimmy full size '75-77 6 cylinder
Buick Century '82-84 2.5L
Buick Skyhawk '82-84
Buick Skylark '81-82 2.5L
Buick Skylark '83-84
Cadillac Cimarron '82-84
Camaro '75-77 6 cylinder
Camaro '82-84 2.5L
Camaro '82-84 2.8L
Cavalier '82-84
Chevelle '75-77 6 cylinder
Chevette '76-84
Chevy Blazer S10/GM Jimmy S15 '83-84 2.0L
Chevy Blazer S10/GM Jimmy S15 '83-84 2.8L
Chevy Celebrity '82 2.5L
Chevy Celebrity '83-84
Chevy Citation '81-82 Externally mounted
Chevy Citation '83-84
Chevy Forward Control '75-77 6 cylinder
Chevy Monza '75-77 2.3L
Chevy Nova '75-77 6 cylinder
Chevy Passenger '77 6 cylinder
Chevy Pickup '75-77 6 cylinder
Chevy Sprint (GMC) '75-77 6 cylinder
Chevy Suburban '75-77 6 cylinder
Chevy Van '75-77 6 cylinder
Chevy Vega '75 2.3L
Chevy Vega '76-77
Firebird '75-76 6 cylinder
Firebird '82-84 2.5L
Firebird '82-84 2.8L
GMC Forward Control '75-77 6 cylinder
GMC Pickup '75-77 6 cylinder
GMC Van '75-77 6 cylinder
Olds Ciera '82-84 2.5L
Olds Ciera '83-84 2.8L
Olds Cutlass '75-76 6 cylinder
Olds Firenza '82-84
Olds Omega '75-76 6 cylinder
Olds Omega '81-82 2.5L
Olds Omega '83-84
Olds Starfire '76-77 2.3L
Oldsmobile Apollo '75 4.0L
Pontiac 1000 '81-84
Pontiac 2000 '82-84
Pontiac 6000 '82 2.5L
Pontiac 6000 '83-84
Pontiac Acadian '76-84
Pontiac Astre '77 2.3L
Pontiac Astre '75-76
Pontiac LeMans '75-76 6 cylinder
Pontiac Phoenix '81-82 2.5L
Pontiac Phoenix '83-84
Pontiac Sunbird '76-77 2.3L
Pontiac Ventura II '75-76 6 cylinder
S10/S15/GM Sonoma '82 2.8L
S10/S15/GM Sonoma '83-84 2.0L
S10/S15/GM Sonoma '83-84 2.8L
'85-88 2.8L
Blazer/GM Jimmy full size '87-94
Buick '91 5.0L
Buick '92 5.7L
Buick Century '86 2.8L
Buick Century '85-86 2.5L
Buick Skyhawk '85-88 OHC
Buick Skylark '85
Buick Skylark '86 2.5L
Buick Somerset '85-86 2.5L
Cadillac '90 5.7L
Cadillac '91-92 5.0L
Cadillac '91-93 5.7L
Cadillac Cimarron '85-86 2.8L
Camaro '85-86 2.5L
Camaro '85-86 2.8L
Camaro '87-92
Cavalier '85-86 2.8L
Chevette '85-87
Chevy Blazer S10/GM Jimmy S15 '95 Distributor w/top mounted plug wires
Chevy Blazer S10/GM Jimmy S15 '85-94
Chevy Celebrity '85-86
Chevy Citation '85
Chevy Forward Control '87-89 EFI
Chevy Forward Control '90-93
Chevy Geo Storm '90-93
Chevy Lumina Van '90-91
Chevy Lumina Van '92-95 3.1L
Chevy Malibu '85-87 4.3L
Chevy Monte Carlo '85-86 4.3L
Chevy Monte Carlo '87-88
Chevy Passenger '85-88 4.3L
Chevy Passenger '87-88 5.0L
Chevy Passenger '87-88 5.7L
Chevy Passenger '89-90 4.3L
Chevy Passenger '89-90 5.0L
Chevy Passenger '89-90 5.7L
Chevy Passenger '91-93
Chevy Pickup '87-89 EFI
Chevy Pickup '90-95
Chevy Sprint (GMC) '87
Chevy Sprint (GMC) '85-86 4.3L
Chevy Suburban '87-89 EFI
Chevy Suburban '90-95
Chevy Tahoe/GM Yukon '92-95
Chevy Van '96 except Express
Chevy Van '87-89 EFI
Chevy Van '90-95
Firebird '89 2.8L
Firebird '89 5.0L
Firebird '89 5.7L
Firebird '85-86 2.5L
Firebird '85-86 2.8L
Firebird '87-88
Firebird '90-92
GM Syclone '91
GM Typhoon '92-93
GMC Forward Control '87-89 EFI
GMC Forward Control '90-93
GMC Pickup '87-89 EFI
GMC Pickup '90-95
GMC Van '96 except Savanna
GMC Van '87-89 EFI
GMC Van '90-95
Isuzu I-Mark '89 DOHC
Isuzu I-Mark '89 SOHC, turbocharged
Isuzu I-Mark '87-88 turbocharged
Isuzu Impulse '90
Isuzu Impulse '91-92 w/o turbocharger
Isuzu Rodeo '91-92 3.1L
Isuzu Stylus '91-93
Isuzu Trooper '89-91 2.8L
Olds '91 5.0L
Olds Bravada '91-94
Olds Calais '85-86 2.5L
Olds Ciera '85 2.5L
Olds Ciera '85 2.8L
Olds Ciera '86 2.5L
Olds Ciera '86 2.8L
Olds Custom Cruiser Wagon '92
Olds Firenza '87 2.0L
Olds Firenza '88 2.0L OHC
Olds Firenza '85-86 1.8L
Olds Firenza '85-86 2.8L
Olds Silhouette '90-91
Olds Silhouette '92-95 3.1L
Pontiac '85-86 4.3L
Pontiac 1000 '85-87
Pontiac 6000 '85-86
Pontiac Acadian '85-87
Pontiac Astro '85 2.5L
Pontiac Astro '85 4.3L Four-barrel carburetor
Pontiac Astro '86-95
Pontiac Grand Am '85-86 2.5L
Pontiac Grand Am '87-89 2.0L
Pontiac Grand Prix '86-87 4.3L
Pontiac Grand Prix '86-87 5.0L
Pontiac Safari (GMC) '85 2.5L
Pontiac Safari (GMC) '85 4.3L Four-barrel carburetor
Pontiac Safari (GMC) '86-95
Pontiac Sunbird '85-86
Pontiac Sunbird '85-86 OHC
Pontiac Sunbird '87-90
Pontiac Trans Sport '90-91
Pontiac Trans Sport '92-95 3.1L
S10/S15/GM Sonoma '85 2.5L
S10/S15/GM Sonoma '85 2.8L
S10/S15/GM Sonoma '94 4.3L
S10/S15/GM Sonoma '95 4.3L distributor w/top mounted plug wires
S10/S15/GM Sonoma '86-93
'87-88 2.5L
Buick Century '87-92 2.5L
Buick Skylark '87-91 2.5L
Buick Somerset '87 2.5L
Chevy Celebrity '87-90 2.5L
Chevy Lumina Car '90-92 2.5L
Olds Calais '87-91 2.5L
Olds Ciera '87-92 2.5L
Pontiac 6000 '87-91 2.5L
Pontiac Grand Am '87-91 2.5L
Post by: GTRS Fiero on December 24, 2018, 06:37:40 pm
'85-88 V-6: On the V-6 engine, the 2-wire cable (pigtail) from the distributor to ignition coil is about 10" long (250 mm) and is no longer available from GM. A similar wiring cable, without the protective plastic wire loom, is available from the '84-85 Z28 Camaro. It may be available from other Camaros or Firebirds of similar vintage but we can't yet confirm this. A similar pigtail is also available for Chevrolet S-10 trucks of the late '80s which had the same V-6 engine as the Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:37:57 pm
The ignition module in the V-6 Fiero is infamous for dying at inopportune times. Every Fiero owner should carry a spare ignition module along with the appropriate screwdriver(s) to replace it. Since the original equipment ignition module by AC Delco has the reputation of being the longest-lasting, it's best to use AC Delco when possible. Of course AC Delco is not the lowest cost unit on the market. So when you run across an AC Delco unit in a salvage yard, grab it. The list below shows cars which use the same ignition module as the Fiero.
When replacing the module: (a) don't lose the small mounting screws; they are hard to find in any store; (b) clean off the old heat sink compound under the ignition module and replace it with new; (c)don't over-tighten the ignition module mounting screws; they thread into the distributor mounting plate which is aluminum and can be easily stripped.
Our thanks to John Craker for this information.
Vehicles which have the same ignition module as the '85-88 V-6 Fiero are:
Buick Estate Wagon '91 V8-305ci 5.0L F/I VIN E
Buick Roadmaster '91 V8-305ci 5.0L F/I VIN E
Buick Roadmaster '92-93 V8-350ci 5.7L F/I VIN 7
Buick Roadmaster Estate Wagon '91 V8-305ci 5.0L F/I VIN E
Buick Roadmaster Estate Wagon '92-93 V8-350ci 5.7L F/I VIN 7
Buick Skylark '85 V6-173ci 2.8L F/I VIN W
Cadillac Broughm '90-91 V8-350ci 5.7L F/I VIN 7
Cadillac Broughm '91-92 V8-350ci 5.7L F/I VIN E
Cadillac Cimarron '86 V6-173ci 2.8L F/I VIN W
Cadillac Fleetwood Brogham (RWD) '90 V8-350ci 5.7L 4 BBL VIN 7
Chevy Astro Van '86-94 V6-262ci 4.3L F/I VIN Z
Chevy Astro Van '91 V6-262ci 4.3L F/I VIN B
Chevy Astro Van '92-95 V6-262ci 4.3L F/I VIN W
Chevy Astro Van (AWD) '92-95 V6-262ci 4.3L F/I VIN W
Chevy Astro Van (AWD) '92-94 V6-262ci 4.3L F/I VIN Z
Chevy Blazer 4x2 (full size) '87 V8-350ci 5.7L 4 BBL VIN M
Chevy Blazer 4x2 (full size) '87 V8-350ci 5.0L 4 BBL VIN H & VIN K
Chevy Blazer 4x2 (full size) '87 V8-305ci 5.0L F/I VIN H
Chevy Blazer 4x2 (full size) '87-91 V8-350ci 5.7L F/I VIN K
Chevy Blazer S10 4x2 '91-94 V6-262ci 4.3L F/I VIN Z
Chevy Blazer S10 4x2 '92-94 V6-262ci 4.3L F/I VIN W
Chevy Blazer S10/T10 '95 V6-262ci 4.3L F/I VIN W
Chevy Blazer T-10 4x4 '91-94 V6-262ci 4.3L F/I VIN Z
Chevy Blazer T-10 4x4 '92-94 V6-262ci 4.3L F/I VIN W
Camaro '85-89 V6-173ci 2.8L F/I VIN S
Camaro '87-88 V8-350ci 5.7L F/I VIN 8
Camaro '87 V8-305ci 5.0L 4 BBL VIN H
Camaro '88-91 V8-305ci 5.0L F/I VIN E
Camaro '88-89 V8-305ci 5.0L F/I VIN F
Camaro '90-91 V6-189ci 3.1L F/I VIN T
Camaro IROC-Z '88-90 V8-350ci 5.7L F/I VIN 8
Camaro IROC-Z '88-90 V8-305ci 5.0L F/I VIN F
Camaro RS '92 V8-305ci 5.0L F/I VIN E
Camaro RS '92 V6-189ci 3.1L F/I VIN T
Camaro Z28 '87 V8-350ci 5.7L F/I VIN 8
Camaro Z28 '91-92 V8-350ci 5.7L F/I VIN 8
Camaro Z28 '91-92 V8-305ci 5.0L F/I VIN F
Chevy Caprice '89-91 V8-350ci 5.7L F/I VIN 7
Chevy Caprice '87-88 V8-305ci 5.0L 4 BBL VIN H
Chevy Caprice '89-93 V8-305ci 5.0L F/I VIN E
Chevy Caprice '85-93 V6-262ci 4.3L F/I VIN Z
Chevy Caprice Estate '86-87 V6-262ci 4.3L F/I VIN Z
Chevy Caprice Estate '87 V8-305ci 5.0L 4 BBL VIN H
Chevy Caprice LTZ '93 V8-350ci 5.7L F/I VIN 7
Chevy Caprice Wagon '92-93 V8-350ci 5.7L F/I VIN 7
Chevy Cavalier '85-86 V6-173ci 2.8L F/I VIN W
Chevy Cavalier Z24 '86 V6-173ci 2.8L F/I VIN W
Chevy Celebrity '85-86 V6-173ci 2.8L F/I VIN W
Chevy Citation II '85 V6-173ci 2.8L F/I VIN W
Chevy El Camino '85-87 V6-262ci 4.3L F/I VIN Z
Chevy El Camino '87 V8-305ci 5.0L 4 BBL VIN H
Chevy Impala '85 V6-262ci 4.3L F/I VIN Z
Chevy Monte Carlo '85-88 V6-262ci 4.3L F/I VIN Z
Chevy Monte Carlo '87-88 V8-305ci 5.0L 4 BBL VIN G
Chevy Monte Carlo '87 V8-305ci 5.0L CARB VIN H
Chevy Monte Carlo '87 V8-305ci 5.0L 4 BBL VIN H
Chevy Pickup C1500 1/2 Ton 4x2 '88 V8-350ci 5.7L F/I VIN K
Chevy Pickup R10 1/2 Ton 4x2 '87 V8-305ci 5.0L F/I VIN H
Chevy Pickup R10 1/2 Ton 4x2 '87 V8-350ci 5.7L F/I VIN K
Chevy Pickup R10 1/2 Ton 4x2 '87 V6-262ci 4.3L F/I VIN Z
Chevy Pickup R20 3/4 Ton 4x2 '87-88 V8-350ci 5.7L F/I VIN K
Chevy Pickup R20 3/4 Ton 4x2 '87-88 V8-454ci 7.4L F/I VIN N
Chevy Pickup R20 3/4 Ton 4x2 '87 V8-305ci 5.0L F/I VIN H
Chevy Pickup R20 3/4 Ton 4x2 '87 V6-262ci 4.3L F/I VIN Z
Chevy Pickup R2500 3/4 Ton 4x2 '89 V8-350ci 5.7L F/I VIN K
Chevy Pickup R2500 3/4 Ton 4x2 '89 V8-454ci 7.4L F/I VIN N
Chevy Pickup R30 1 Ton 4x2 '87-88 V8-454ci 7.4L F/I VIN N
Chevy Pickup R30 1 Ton 4x2 '87-88 V8-350ci 5.7L F/I VIN K
Chevy Pickup R30 1 Ton 4x2 '88 V8-350ci 5.7L 4 BBL VIN M
Chevy Pickup R3500 1 Ton 4x2 '89-91 V8-350ci 5.7L F/I VIN K
Chevy Pickup R3500 1 Ton 4x2 '89-91 V8-454ci 7.4L F/I VIN N
Chevy Pickup R3500 1 Ton 4x2 '89 V8-454ci 7.4L CARB VIN W
Chevy Pickup S10 4x2 '91-95 V6-262ci 4.3L F/I VIN Z
Chevy Pickup S10 4x2 '92-94 V6-262ci 4.3L F/I VIN W
Chevy Pickup S10 SS 4x2 '94 V6-262ci 4.3L F/I VIN W
Chevy Pickup S10 SS 4x2 '94-95 V6-262ci 4.3L F/I VIN Z
Chevy Pickup T10 4x4 '91-95 V6-262ci 4.3L F/I VIN Z
Chevy Pickup T10 4x4 '92-94 V6-262ci 4.3L F/I VIN W
Chevy Pickup T10 ZR2 4x4 '94-95 V6-262ci 4.3L F/I VIN Z
Chevy Pickup T10 ZR2 4x4 '94 V6-262ci 4.3L F/I VIN W
Chevy Pickup V10 1/2 Ton 4x4 '87 V6-262ci 4.3L F/I VIN Z
Chevy Pickup V10 1/2 Ton 4x4 '87 V8-305ci 5.0L F/I VIN H
Chevy Pickup V10 1/2 Ton 4x4 '87 V8-350ci 5.7L F/I VIN K
Chevy Pickup V20 3/4 Ton 4x4 '87 V8-350ci 5.7L F/I VIN K
Chevy Pickup V30 1 Ton 4x4 '87-88 V8-350ci 5.7L F/I VIN K
Chevy Pickup V30 1 Ton 4x4 '87-88 V8-454ci 7.4L F/I VIN N
Chevy Pickup V30 1 Ton 4x4 '88 V8-350ci 5.7L 4 BBL VIN M
Chevy Pickup V3500 1 Ton 4x4 '89 V8-454ci 7.4L CARB VIN W
Chevy Pickup V3500 1 Ton 4x4 '89-91 V8-350ci 5.7L F/I VIN K
Chevy Pickup V3500 1 Ton 4x4 '89-91 V8-454ci 7.4L F/I VIN N
Chevy Suburban R10 1/2 Ton 4x2 '87-88 V8-350ci 5.7L F/I VIN K
Chevy Suburban R10 1/2 Ton 4x2 '87 V8-305ci 5.0L F/I VIN H
Chevy Suburban R1500 1/2 Ton 4x2 '89-91 V8-350ci 5.7L F/I VIN K
Chevy Suburban R10 1/2 Ton 4x2 '87 V8-305ci 5.0L F/I Vin H
Chevy Suburban R10 1/2 Ton 4x2 '87-88 V8-350ci 5.7L F/I Vin K
Chevy Suburban R1500 1/2 Ton 4x2 '89-91 V8-350ci 5.7L F/I Vin K
Chevy Suburban R20 3/4 Ton 4x2 '87-88 V8-350ci 5.7L F/I Vin K
Chevy Suburban R20 3/4 Ton 4x2 '87-88 V8-454ci 7.4L F/I Vin N
Chevy Suburban R2500 3/4 Ton 4x2 '89-91 V8-350ci 5.7L F/I Vin K
Chevy Suburban R2500 3/4 Ton 4x2 '89-91 V8-454ci 7.4L F/I Vin N
Chevy Suburban V10 1/2 Ton 4x4 '87-88 V8-350ci 5.7L F/I Vin K
Chevy Suburban V1500 1/2 Ton 4x4 '89-91 V8-350ci 5.7L F/I Vin K
Chevy Suburban V20 3/4 Ton 4x4 '87-89 V8-350ci 5.7L F/I Vin K
Chevy Suburban V2500 3/4 Ton 4x4 '89-91 V8-350ci 5.7L F/I Vin K
Chevy Suburban V2500 3/4 Ton 4x4 '89-90 V8-454ci 7.4L F/I Vin N
Chevy Van G10 1/2 Ton '87-95 V6 262ci 4.3L F/I VIN Z
Chevy Van G10 1/2 Ton '88-95 V8 305ci 5.0L F/I VIN H
Chevy Van G10 1/2 Ton '88-95 V8 350ci 5.7L F/I VIN K
Chevy Van G20 3/4 Ton '87-95 V6-262ci 4.3L F/I VIN Z
Chevy Van G20 3/4 Ton '88-95 V8-305ci 5.0L F/I VIN H
Chevy Van G20 3/4 Ton '88-95 V8-350ci 5.7L F/I VIN K
Chevy Van G20 3/4 Ton '92 V8-379ci 6.2L Diesel VIN J
Chevy Van G20 3/4 Ton '88-93 V8-379ci 6.2L Diesel VIN C
Chevy Van G20 3/4 Ton '94-95 V8-395ci 6.5L Diesel VIN P
Chevy Van G20 3/4 Ton '87-95 V6-262ci 4.3L F/I VIN Z
Chevy Van G20 3/4 Ton '88-95 V8-305ci 5.0L F/I VIN H
Chevy Van G30 1 Ton '87-95 V6-262ci 4.3L F/I VIN Z
Chevy Van G30 1 Ton '88 V8-350ci 5.7L 4 BBL VIN M
Chevy Van G30 1 Ton '88-93 V8-379ci 6.2L Diesel VIN J
Chevy Van G30 1 Ton '88-96 V8-350ci 5.7L F/I VIN K
Chevy Van G30 1 Ton '88-96 V8-454ci 7.4L F/I VIN N
Chevy Van G30 1 Ton '92 V8-379ci 6.2L Diesel VIN C
Chevy Van G30 1 Ton '94-95 V8-395ci 6.5L Diesel VIN Y
Chevy Van G3500 1 Ton Express '96 V6-262ci 4.3L F/I VIN W
Chevy Van G3500 1 Ton Express '96 V8-350ci 5.7L F/I VIN K
Chevy Van G3500 1 Ton Express '96 V8-454ci 7.4L F/I VIN N
Chevy Van P20 '87-89 V8-350ci 5.7L F/I VIN K
Chevy Van P30 '87-95 V8-350ci 5.7L F/I VIN K
Chevy Van P30 '91-95 V6-262ci 4.3L F/I VIN Z
Chevy Van P30 '91-97 V8-454ci 7.4L F/I VIN N
GMC Caballero '85 V6-262ci 4.3L F/I VIN Z
GMC Jimmy (full size) '87 V8-305ci 5.0L F/I VIN H
GMC Jimmy (full size) '87-91 V8-350ci 5.7L F/I VIN K
GMC Jimmy S15/T15 '91-94 V6-262ci 4.3L F/I VIN Z
GMC Jimmy S15/T15 '92-95 V6-262ci 4.3L F/I VIN W
GMC Pickup R1500 1/2 Ton 4x2 '87 V6-262ci 4.3L F/I VIN Z
GMC Pickup R1500 1/2 Ton 4x2 '87 V8-305ci 5.0L F/I VIN H
GMC Pickup R1500 1/2 Ton 4x2 '87 V8-350ci 5.7L F/I VIN K
GMC Pickup R2500 3/4 ton 4x2 '87 V6-262ci 4.3L F/I VIN Z
GMC Pickup R2500 3/4 ton 4x2 '87 V8-305ci 5.0L F/I VIN H
GMC Pickup R2500 3/4 ton 4x2 '87-89 V8-350ci 5.7L F/I VIN K
GMC Pickup R2500 3/4 ton 4x2 '87-89 V8-454ci 7.4L F/I VIN N
GMC Pickup R3500 1 ton 4x2 '87-91 V8-350ci 5.7L F/I VIN K
GMC Pickup R3500 1 ton 4x2 '87-91 V8-454ci 7.4L F/I VIN N
GMC Pickup R3500 1 ton 4x2 '88 V8-350ci 5.7L 4 BBL VIN M
GMC Pickup Sonoma (S15/T15) '91-95 V6-262ci 4.3L F/I VIN Z
GMC Pickup Sonoma (S15/T15) '92-94 V6-262ci 4.3L F/I VIN W
GMC Pickup Sonoma SLS Sport '94-95 V6-262ci 4.3L F/I VIN Z
GMC Pickup Sonoma SLS Sport '94 V6-262ci 4.3L F/I VIN W
GMC Pickup Syclone (T15) '91 V6-262ci 4.3L F/I Turbo VIN Z
GMC Pickup V1500 1/2 Ton 4x4 '87 V8-305ci 5.0L F/I VIN H
GMC Pickup V1500 1/2 Ton 4x4 '87 V8-350ci 5.7L F/I VIN K
GMC Pickup V1500 1/2 Ton 4x4 '87 V6-262ci 4.3L F/I VIN Z
GMC Pickup V2500 3/4 Ton 4x4 '87 V8-350ci 5.7L F/I VIN K
GMC Pickup V3500 1 Ton 4x4 '87-91 V8-350ci 5.7L F/I VIN K
GMC Pickup V3500 1 Ton 4x4 '87-91 V8-454ci 7.4L F/I VIN N
GMC Pickup V3500 1 Ton 4x4 '88 V8-350ci 5.7L 4 BBL VIN M
GMC Safari Van '86-94 V6-262ci 4.3L F/I VIN Z
GMC Safari Van '90-91 V6-262ci 4.3L F/I VIN B
GMC Safari Van '92-95 V6-262ci 4.3L F/I VIN W
GMC Safari Van AWD '92-94 V6-262ci 4.3L F/I VIN Z
GMC Safari Van AWD '92-95 V6-262ci 4.3L F/I VIN W
GMC Suburban R1500 1/2 Ton 4x2 '87 V8-305ci 5.0L F/I VIN H
GMC Suburban R1500 1/2 Ton 4x2 '87-91 V8-350ci 5.7L F/I VIN K
GMC Suburban R2500 3/4 Ton 4x2 '87-91 V8-350ci 5.7L F/I VIN K
GMC Suburban R2500 3/4 Ton 4x2 '87-91 V8-454ci 7.4L F/I VIN N
GMC Suburban V1500 1/2 Ton 4x4 '87-91 V8-350ci 5.7L F/I VIN K
GMC Suburban V2500 3/4 Ton 4x4 '87-91 V8-350ci 5.7L F/I VIN K
GMC Typhoon (T15) '92-93 V6-262ci 4.3L F/I Turbo VIN Z
GMC Van G1500 1/2 Ton '88-95 V8-305ci 5.0L F/I VIN H
GMC Van G1500 1/2 Ton '88-95 V8-350ci 5.7L F/I VIN K
GMC Van G1500 1/2 Ton '87-95 V6-262ci 4.3L F/I VIN Z
GMC Van G2500 3/4 Ton '87-95 V6-262ci 4.3L F/I VIN Z
GMC Van G2500 3/4 Ton '88-93 V8-379ci 6.2L Diesel VIN C
GMC Van G2500 3/4 Ton '88-95 V8-305ci 5.0L F/I VIN H
GMC Van G2500 3/4 Ton '88-95 V8-350ci 5.7L F/I VIN K
GMC Van G2500 3/4 Ton '94-95 V8-395ci 6.5L Diesel VIN P
GMC Van G3500 1 Ton '87-96 V6-262ci 4.3L F/I VIN Z
GMC Van G3500 1 Ton '88 V8-350ci 5.7L 4 BBL VIN M
GMC Van G3500 1 Ton '88-93 V8-379ci 6.2L Diesel VIN J
GMC Van G3500 1 Ton '88-96 V8-350ci 5.7L F/I VIN K
GMC Van G3500 1 Ton '88-96 V8-454ci 7.4L F/I VIN N
GMC Van G3500 1 Ton '89 V8-454ci 7.4L F/I VIN N/L19
GMC Van G3500 1 Ton '92 V6-262ci 4.3L F/I VIN W
GMC Van G3500 1 Ton '94-95 V8-395ci 6.5L Diesel VIN Y
GMC Van G3500 1 Ton Savana '96 V8-454ci 7.4L F/I VIN N
GMC Van G3500 1 Ton Savana '96 V8-350ci 5.7L F/I VIN K
GMC Van P25/P2500 '88-89 V8-350ci 5.7L F/I VIN K
GMC Van P35/P3500 '87-94 V8-350ci 5.7L F/I VIN K
GMC Van P35/P3500 '91-97 V8-454ci 7.4L F/I VIN N
GMC Van P35/P3500 '91-95 V6-262ci 4.3L F/I VIN Z
Olds Bravada '92 V6-262ci 4.3L F/I VIN W
Olds Bravada '94 V6-262ci 4.3L F/I VIN W
Olds Bravada '91-93 V6-262ci 4.3L F/I VIN Z
Olds Custom Cruiser '91-92 V8-305ci 5.0L F/I VIN E
Olds Custom Cruiser '92 V8-350ci 5.7L F/I VIN 7
Pontiac Firebird '88-92 V8-305ci 5.0L F/I VIN E
Pontiac Firebird '88 V8-305ci 5.0L F/I VIN F
Pontiac Firebird '91-92 V8-305ci 5.0L F/I VIN F
Pontiac Firebird '92 V6-189ci 3.1L F/I VIN T
Pontiac Firebird Trans Am '88 V8-305ci 5.0L F/I VIN E
Pontiac Firebird Trans Am '88 V8-305ci 5.0L F/I VIN F
Pontiac Firebird Trans Am '91-92 V8-305ci 5.0L F/I VIN F
Pontiac Firebird Trans Am '92 V8-350ci 5.7L F/I VIN 8
Pontiac Firebird Trans Am GTA '92 V8-305ci 5.0L F/I VIN F
Pontiac Firebird Trans Am GTA '92 V8-350ci 5.7L F/I VIN 8
Pontiac Firebird Trans Am GTA SLP '92 V8-350ci 5.7L F/I VIN 8
Post by: GTRS Fiero on December 24, 2018, 06:38:19 pm
The intake manifolds of the Fiero were used on many GM cars with the exception of the upper manifold on the '85-88 V6. We have seen upper manifolds in salvage yards which appear very similar to the upper Fiero V6 manifold (without the engraving or decal marking) but do not know if they will exchange.
'84-85 2.5L
Buick Century '82-85 2.5L
Buick Skylark '82-85 2.5L
Buick Somerset '85 2.5L
Camaro '82-85 2.5L
Chevy Blazer/S10/Jimmy S15 '85 2.5L
Chevy Celebrity '82-85 2.5L
Chevy Citation '82-85 2.5L
Chevy S10/S15/Sonoma '85 2.5L
Firebird '82-85 2.5L
Olds Calais '85 2.5L
Olds Ciera '82-85 2.5L
Olds Omega '82-84 2.5L
Pontiac 6000 '82-85 2.5L
Pontiac Astro '85 2.5L
Pontiac Grand Am '85 2.5L
Pontiac Phoenix '82-84 2.5L
Pontiac Safari (GMC) '85 2.5L
'86 2.5L
Buick Century '86 2.5L
Buick Skylark '86 2.5L
Buick Somerset '86 2.5L
Camaro '86 2.5L
Chevy Blazer/S10/Jimmy S15 '86-87 2.5L
Chevy Celebrity '86 2.5L
Chevy S10/S15/Sonoma '86 2.5L
Firebird '86 2.5L
Olds Calais '86 2.5L
Olds Ciera '86 2.5L
Pontiac 6000 '86 2.5L
Pontiac Astro '86 2.5L
Pontiac Grand Am '86 2.5L
Pontiac Safari (GMC) '86 2.5L
'87-88 2.5L
Buick Century '87-89 2.5L
Buick Skylark '87-88 2.5L
Buick Somerset '87 2.5L
Chevy Blazer/S10/Jimmy S15 '88 2.5L
Chevy Celebrity '87-89 2.5L
Chevy S10/S15/Sonoma '87-90 2.5L
Chevy S10/S15/Sonoma '91 2.5L VIN "E" (8th digit)
Olds Calais '87-88 2.5L
Olds Ciera '87-89 2.5L
Pontiac 6000 '87-89 2.5L
Pontiac Astro '87-90 2.5L
Pontiac Grand Am '87-88 2.5L
Pontiac Safari (GMC) '87-90 2.5L
'85-86 2.8L Upper This upper intake manifold (plenum) is unique. No interchange available.
'85-88 2.8L Center
Buick Century '85 2.8L EFI, Center
Buick Skylark '85 2.8L EFI, Center
Camaro '85-89 2.8L Center
Camaro '90-92 3.1L Center
Chevy Celebrity '85-86 2.8L EFI, Center
Chevy Citation '85 2.8L EFI, Center
Firebird '85-89 2.8L Center
Firebird '90-92 3.1L Center
Olds Ciera '86 2.8L EFI, Center
Pontiac Pontiac 6000 '85-86 2.8L EFI, Center
'85-88 2.8L Lower
Pontiac 6000 '85-86 2.8L EFI, Lower
Camaro '85-89 2.8L Lower
Camaro '90-92 3.1L Lower
Chevy Celebrity '85-86 2.8L EFI, Lower
Buick Century '85 2.8L EFI, Lower
Olds Ciera '86 2.8L EFI, Lower
Chevy Citation '85 2.8L EFI, Lower
Firebird '85-89 2.8L Lower
Firebird '90-92 3.1L Lower
Buick Skylark '85 2.8L EFI, Lower
'87-88 2.8L Upper This upper intake manifold (plenum) is unique. No interchange available.
FUEL INJECTORS
'84-88 2.5L There is a single fuel injector in the throttle body of 2.5L Fiero engines. We are unaware if the injector can be replaced by itself. If the fuel injector is faulty, it may be easier to replace the entire throttle body with one from a donor Fiero.
'85-88 2.8L We do not have confirmation which cars have the same fuel injectors used in the 2.8L Fiero. We suspect that cars using the same center manifold may have the same injectors. See the Intake Manifold section for the 2.8L.
Cold Start Injector Tony Borbely reports that the cold start injector for the 2.8L V-6 is AC Delco Part No. 212-312 at a cost of $114. If you visit acdelco.com and use the "shop by part number" feature, you can find 61 other vehicles which use the same cold start injector. Tony also reports that the fuel rail to injector fuel tube (for the cold start injector) and seals are also listed on the AC Delco web site. It is likely these items are reported as "discontinued" by GM.
Post by: GTRS Fiero on December 24, 2018, 06:38:36 pm
EXTERNAL MIRRORS
GM used the same outside non-power mirrors on all Fieros. These same outside mirrors were used in a handful of other GM cars in the mid to late '80s. Power mirrors have the same glass but different mounting. Be sure to observe this difference when using salvaged units.
Vehicles with the same mirrors:
Camaro '82-92
Corvette '84-96
Chevy El Camino '86-88
Caballero Sprint '85-88
Firebird '82-93
The mirror housings in other cars may differ slightly from the Fiero. The '84-91 Corvette mirrors are heated. The heating feature can be transferred to the Fiero if you can handle the wiring. If you have a rear defroster in your Fiero you can wire the mirrors in parallel with the defroster so they are turned off automatically.
Aftermarket mirrors can be obtained from parts stores under the following numbers:
Mirror glass, left (manual & elec) Look! 51004
Mirror glass, right (manual & elec) Look! 51039
These replacements will include the glass portion only, not any of the plastic mounting. They may also be the less-expensive plastic mirrors, not glass like the originals.
INTERNAL MIRRORS
GM used the same internal mirror on the Fiero as it did on many other GM cars of the same period. Replacement of the mirror is simple and new ones can be purchased at auto parts stores from the "Help!" section. Replacement mirrors can also be obtained from salvage yards. GM mirrors of the same period used the same mounting technique, so use of the exact mirror is not necessary unless you are trying to maintain a perfectly stock appearance.
Upgrades to the interior mirror can be made using later model mirrors which contain auto-dimming, compass, and external temperature. Such mirrors require wiring modifications that are simple but beyond the scope of this manual. Mirrors with the auto-dimming function that are known to work come from early '90s Cadillacs. The late '90s early 2000 Yukon rear view mirror contains the compass, auto dim and outside temperature features and is known to work. No doubt other GM or aftermarket mirrors can be used but we have no additional data.
Post by: GTRS Fiero on December 24, 2018, 06:38:54 pm
Fortunately many GM engines shared the same oil pan as the Fiero. Even some Jeep and other American Motors engines used the same pan!
'84-87 2.5L
American Motors Concord '80-82 2.5L
American Motors Spirit (AMC) '80-82 2.5L
Buick Century '82-87 2.5L
Buick Skylark '85-90 2.5L
Camaro '82-86 2.5L
Chevy Blazer S10/GM Jimmy S15 '85-88 2.5L
Chevy Celebrity '82-87 2.5L
Chevy Citation '80-85 2.5L
Chevy Monza '79 2.5L VIN "9" (5th digit)
Chevy Monza '79 2.5L VIN "V" (5th digit)
Chevy Monza '80 2.5L
Firebird '82-86 2.5L
Jeep CJ-Series '83 2.5L VIN "B"
Jeep CJ-Series '80-82 2.5L
Jeep Eagle '83 2.5L VIN "B"
Jeep Eagle '81-82 2.5L
Olds Ciera '82-87 2.5L
Olds Omega '80-84 2.5L
Olds Starfire '79 2.5L VIN "9" (5th digit)
Olds Starfire '79 2.5L VIN "V" (5th digit)
Olds Starfire '80 2.5L
Pontiac 6000 '82-87 2.5L
Pontiac Astro '85-90 2.5L
Pontiac Phoenix '80-84 2.5L
Pontiac Safari (GMC) '85-90 2.5L
Pontiac Sunbird '79 2.5L VIN "9" (5th digit)
Pontiac Sunbird '79 2.5L VIN "V" (5th digit)
Pontiac Sunbird '80 2.5L
S10/S15/GM Sonoma '85-93 2.5L
'88 2.5L This oil pan does not have an oil drain plug.
Pontiac 6000 '88 2.5L
Chevy Celebrity '88 2.5L
Buick Century '88 2.5L
Olds Ciera '88 2.5L
'88 2.5L This oil pan does have an oil drain plug.
Buick Century '89-90 2.5L
Chevy Celebrity '89-90 2.5L
Chevy Lumina Car '90 2.5L
Olds Ciera '89-90 2.5L
Pontiac 6000 '89-90 2.5L
'85-86 2.8L Use rear pan seal #14077876
Buick Century '82 2.8L Rubber rear pan seal
Buick Century '83-86 2.8L
Buick Skylark '80 2.8L
Buick Skylark '82 2.8L Rubber rear pan seal
Buick Skylark '83-85 2.8L
Cadillac Cimarron '85-86 2.8L
Cavalier '85-86 2.8L
Chevy Celebrity '82 2.8L Rubber rear pan seal
Chevy Celebrity '83-86 2.8L
Chevy Citation '80 2.8L
Chevy Citation '82 2.8L Rubber rear pan seal
Chevy Citation '83-85 2.8L
Olds Ciera '82 2.8L Rubber rear pan seal
Olds Ciera '83-86 2.8L
Olds Firenza '85-86 2.8L
Olds Omega '80 2.8L
Olds Omega '82 2.8L Rubber rear pan seal
Olds Omega '83-84 2.8L
Pontiac 6000 '82 2.8L Rubber rear pan seal
Pontiac 6000 '83-86 2.8L
Pontiac Phoenix '80 2.8L
Pontiac Phoenix '82 2.8L Rubber rear pan seal
Pontiac Phoenix '83-84 2.8L
'87-88 2.8L
Buick Century '88-89 2.8L
Cadillac Cimarron '87-88 2.8L
Chevy Cavalier '87-89 2.8L
Chevy Cavalier '90-94 3.1L
Chevy Beretta '87-89 2.8L
Chevy Beretta '90-93 3.1L
Chevy Celebrity '87-90 2.8L
Chevy Corsica '87-89 2.8L
Chevy Corsica '90-93 3.1L
Chevy Lumina Car '90-94 3.1L
Chevy Lumina Car '91-94 3.4L
Chevy Lumina Van '90-95 3.1L
Olds Ciera '87-89 2.8L
Olds Cutlass '92 3.1L
Olds Cutlass '93 3.1L VIN "T"
Olds Cutlass '88-89 2.8L
Olds Cutlass '89-91 3.1L
Olds Cutlass '91-92 3.4L
Olds Cutlass '93-94 3.4L
Olds Firenza '87 2.8L
Olds Regal '88 2.8L
Olds Regal '89 2.8L
Olds Regal '89-93 3.1L
Olds Silhouette '90-91 2.8L
Olds Silhouette '92-95 3.1L
Pontiac Grand Prix '88 2.8L
Pontiac Grand Prix '89-90 3.1L Except turbocharged
Pontiac Grand Prix '91-93 3.1L
Pontiac Grand Prix '91-94 3.4L
Pontiac Pontiac 6000 '87-89 2.8L
Pontiac Pontiac 6000 '88-91 3.1L
Pontiac Sunbird '91-94 3.1L
Pontiac Tempest '87-89 2.8L
Pontiac Tempest '90-93 3.1L
Pontiac Trans Sport '90-91 2.8L
Pontiac Trans Sport '92-95 3.1L
Post by: GTRS Fiero on December 24, 2018, 06:39:58 pm
The oil pressure sensor in the '84-87 A/C-equipped Fiero is prone to problems. There is a vent hole in the sensor which allows entry of water and humid air. Over time, the internals of the sensor corrode and cause an erratic oil pressure gauge or complete failure. A GM Techincal Service Bulletin advises to plug the sensor hole and use a rubber cap over the connector. The GM part number for the plug is 12085529. A dab of silicone will serve the same purpose. The electrical connector, should you need to replace it, is part number 12085529.
If you want to see what the inside of a damaged oil pressure sensor looks like, check this link: Damaged Sensor
The damage-prone sensor in the '84-87 Fiero can be replaced by the sensor from an '88 Fiero but requires a matching connector. Some replacement sensors for the '88 Fiero may come with 4 electrical pins in the socket, but only three of the pins are used in the Fiero wiring. If you use one of the 4-pin replacement sensors in an earlier Fiero, be sure to correctly wire the mating connector!
Another "feature" of the oil pressure sensor (all years) is it contains contacts which supply power to the fuel pump after oil pressure has been established. However these contacts are in parallel with two contacts in the fuel pump relay which also provides power to the fuel pump. If the fuel pump relay fails all the power for the pump goes through the contacts in the oil pressure sensor. Apparently these contacts are not rated for the full pump load. This can cause the contacts to overheat and damage the pressure-sensing portion of the sensor. We believe GM erred in this application. The sensor as described by AC Delco (the sensor manufacurer) is for "oil pressure w/light". It appears the contacts within the switch were intended for an "idiot light" on the dash, not as current-carrying components for the fuel pump. Therefore, running fuel pump power through the sensor seems to be a design error, but that's the way it is (unless you change it).
The oil pressure sensor in the '88 Fiero is a different design (no vent hole) but still has the contacts for the fuel pump. If your oil pressure gauge always reads maximum pressure the culprit is likely (a) the fuel pump relay has failed and therefore all current for the fuel pump is going through the oil pressure sensor, and (b) the oil pressure sensor has subsequently overheated and the pressure-sensing portion of the unit has short-circuited, thus giving a high gauge reading. It is wise to check the fuel pump relay when the oil pressure sensor is replaced.
If you purchase a new sensor, the GM part numbers are as follows:
'84 - #25036378 (AC Delco D1816)
'85-87 - #10045775 (AC Delco D1808)
'88 - #12555492 (was #10096169 in the 22P manual) (AC Delco D1808A)
A new oil pressure sensor runs $25-50 depending on where you shop. However, be careful what you purchase. There are Taiwanese oil pressure sensors sold as replacements for the V-6 ('85-'88, even though the '88 is different) which are definitely mis-wired internally. They will cause the gauge fuse to blow, the oil pressure gauge to peg, and the fuel pump will not run initially when the ignition is turned to "ON". These sensors come as different brands and in different boxes but all are made in Taiwan. We suggest you try AC Delco sensors and keep the receipt!
'84 Fiero: The vehicles listed below used the same oil pressure sensor as the '84 Fiero, GM Part No. 25036378. This is the same as AC Delco D1816. If you search the AC Delco site, part D1816 is available but is not listed for ANY vehicle. If you search AC Delco for the '84 Fiero oil pressure sensor you will get Part No. F1808 which is the same as the '85-87 Fiero.
'85-88 Chevy S10 Blazer Base, 4 Cyl 2.5L VIN E
'85-86 Chevy S10 Blazer Durango, 4 Cyl 2.5L VIN E
'87-88 Chevy S10 Blazer High Country, 4 Cyl 2.5L VIN E
'85-88 Chevy S10 Blazer Sport, 4 Cyl 2.5L VIN E
'85-88 Chevy S10 Blazer Tahoe, 4 Cyl 2.5L VIN E
'84-87 Fiero: The following cars use the same oil pressure sensor as the '84-87 Fiero, GM Part No. 10045775. AC Delco uses the same part number or F1808. Note that the part number listed above for the '84 is different (25036378). Nevertheless, the Hollander manual says the '85-87 sensor also fits the '84 and the AC Delco web site confirms this. The mating connector is GM Part No. 12085529 or AC Delco PT137.
'87-88 Buick Century Custom V6 3.8L 231cid VIN 3
'87-88 Buick Century Estate Wagon V6 3.8L 231cid VIN 3
'87-88 Buick Century Limited V6 3.8L 231cid VIN 3
'86 Buick Electra V6 3.8L 231cid VIN B
'86 Buick Electra Park Avenue V6 3.8L 231cid VIN B
'86 Buick Electra T-Type V6 3.8L 231cid VIN B
'86 Buick LeSabre Custom V6 3.0L 181cid VIN 3, B, L
'86 Buick LeSabre Limited V6 3.0L 181cid VIN 3, L
'84 Buick Skyhawk Custom L4 1.8L 112cid VIN J
'82-86 Buick Skyhawk Custom/Limited L4 1.8L 112cid VIN 0
'86 Buick Skyhawk Sport L4 1.8L 112cid VIN O
'83-86 Buick Skyhawk T-Type L4 1.8L 112cid VIN 0
'84-86 Buick Skyhawk T-Type L4 1.8L 112cid VIN J
'84 Buick Skylark Custom/Limited L4 2.5L 2474cc 151cid VIN R
'86 Buick Skylark Custom/Limited L4 2.5L 2474cc 151cid VIN U
'86 Buick Skylark Custom/Limited V6 3.0L 181cid VIN L
'85 Buick Somerset Regal/Limited L4 2.5L 2474cc 151cid VIN U
'86 Buick Somerset/Limited/T-Type L4 2.5L 2474cc 151cid VIN U
'86 Buick Somerset/Limited V6 3.0L 181cid VIN L
'85 Buick Somerset Regal/Limited V6 3.0L 181cid VIN L
'86 Buick Somerset T-Type V6 3.0L 181cid VIN L
'85-88 Chevrolet Astro L4 2.5L 2474cc 151cid VIN E
'84-86 Chevrolet Camaro L4 2.5L 2474cc 151cid VIN 2
'83 Chevrolet Citation L4 2.5L 2474cc 151cid VIN 5
'83-85 Chevrolet Citation L4 2.5L 2474cc 151cid VIN R
'87-91 Chevrolet LLV (Postal Vehic.) L4 2.5L 2474cc 151cid VIN A
'91 Chevrolet LLV (Postal Vehic.) L4 2.5L 2474cc 151cid VIN E
'85-86 Chevrolet S10 Blazer/Pickup L4 2.5L 2474cc 151cid VIN E
'85-86 GMC S15 Jimmy/Pickup L4 2.5L 2474cc 151cid VIN E
'85-88 GMC Safari L4 2.5L 2474cc 151cid VIN E
'86 Oldsmobile 98 Regency/Brougham V6 3.8L 231cid VIN B
'85-86 Oldsmobile Calais L4 2.5L 2474cc 151cid VIN U
'85-86 Oldsmobile Calais V6 3.0L 181cid VIN L
'85-86 Oldsmobile Calais Supreme L4 2.5L 2474cc 151cid VIN U
'85-86 Oldsmobile Calais Supreme V6 3.0L 181cid VIN L
'85-90 Oldsmobile Cutlass Ciera L4 2.5L 2474cc 151cid VIN R
'86-88 Oldsmobile Cutlass Ciera V6 3.8L 231cid VIN 3
'84-88 Oldsmobile Cutlass Ciera Brougham L4 2.5L 2474cc 151cid VIN R
'87-88 Oldsmobile Cutlass Ciera Brougham V6 3.8L 231cid VIN 3
'84-90 Oldsmobile Cutlass Ciera Cruiser L4 2.5L 2474cc 151cid VIN R
'87-88 Oldsmobile Cutlass Ciera Cruiser V6 3.8L 231cid VIN 3
'87-88 Oldsmobile Cutlass Ciera Cruiser Brougham L4 2.5L 2474cc 151cid VIN R
'87-88 Oldsmobile Cutlass Ciera Cruiser Brougham V6 3.8L 231cid VIN 3
'89 Oldsmobile Cutlass Ciera Cruiser SL L4 2.5L 2474cc 151cid VIN R
'88 Oldsmobile Cutlass Ciera Internat. V6 3.8L 231cid VIN 3
'84-85 Oldsmobile Cutlass Ciera LS L4 2.5L 2474cc 151cid VIN R
'87 Oldsmobile Cutlass Ciera S L4 2.5L 2474cc 151cid VIN R
'87 Oldsmobile Cutlass Ciera S V6 3.8L 231cid VIN 3
'90 Oldsmobile Cutlass Ciera S L4 2.5L 2474cc 151cid VIN R
'87-89 Oldsmobile Cutlass Ciera SL L4 2.5L 2474cc 151cid VIN R
'87-88 Oldsmobile Cutlass Ciera SL V6 3.8L 231cid VIN 3
'86 Oldsmobile Delta 88 Royale V6 3.0L 181cid VIN L
'86 Oldsmobile Delta 88 Royale V6 3.8L 231cid VIN 3
'86 Oldsmobile Delta 88 Royale Brougham V6 3.0L 181cid VIN L
'86 Oldsmobile Delta 88 Royale Brougham V6 3.8L 231cid VIN 3
'82 Oldsmobile Firenza/LX/S/SX L4 1.8L 112cid VIN G
'82-86 Oldsmobile Firenza/LX/S/SX L4 1.8L 112cid VIN 0
'86 Oldsmobile Firenza LC L4 1.8L 112cid VIN 0
'82-85 Oldsmobile Firenza SX L4 1.8L 112cid VIN 0
'84 Oldsmobile Omega/Brougham L4 2.5L 2474cc 151cid VIN R
'84-88 Pontiac 6000 L4 2.5L 2474cc 151cid VIN R
'84-90 Pontiac 6000 LE L4 2.5L 2474cc 151cid VIN R
'85-87 Pontiac Fiero GT/Fiero SE V6 2.8L 173cid VIN 9
'85-87 Pontiac Fiero/Fiero SE L4 2.5L 2474cc 151cid VIN R
'84-86 Pontiac Firebird/ Firebird SE L4 2.5L 2474cc 151cid VIN 2
'85-86 Pontiac Grand Am L4 2.5L 2474cc 151cid VIN U
'85-86 Pontiac Grand Am V6 3.0L 181cid VIN L
'85-86 Pontiac Grand Am LE L4 2.5L 2474cc 151cid VIN U
'85-86 Pontiac Grand Am LE V6 3.0L 181cid VIN L
'86 Pontiac Grand Am SE V6 3.0L 181cid VIN L
'82-83 Pontiac J2000 L4 1.8L 112cid VIN 0
'84 Pontiac J2000 Sunbird L4 1.8L 112cid VIN 0 or J
'84 Pontiac J2000 Sunbird LE L4 1.8L 112cid VIN 0 or J
'84 Pontiac J2000 Sunbird SE L4 1.8L 112cid VIN J
'83-84 Pontiac Phoenix L4 2.5L 2474cc 151cid VIN R
'84 Pontiac Phoenix LE L4 2.5L 2474cc 151cid VIN R
'83 Pontiac Phoenix LJ L4 2.5L 2474cc 151cid VIN R
'85-86 Pontiac Sunbird L4 1.8L 112cid VIN O or J
'86 Pontiac Sunbird GT L4 1.8L 112cid VIN 0 or J
'85 Pontiac Sunbird LE L4 1.8L 112cid VIN 0 or J
'85-86 Pontiac Sunbird SE L4 1.8L 112cid VIN J
'86 Pontiac Sunbird SE L4 1.8L 112cid VIN 0
'88 Fiero: The following cars used the same sensor as the '88 Fiero, AC Delco Part No. D1808A. The matching connector is GM 12085499 or AC Delco PT2324.
'87 Buick Electra Limited V6 3.8L 231cid VIN 3
'88-89 Buick Electra Limited V6 3.8L 231cid VIN C
'87 Buick Electra Park Avenue V6 3.8L 231cid VIN 3
'88-89 Buick Electra Park Avenue V6 3.8L 231cid VIN C
'87 Buick Electra T-Type V6 3.8L 231cid VIN 3
'88-89 Buick Electra T-Type V6 3.8L 231cid VIN C
'89 Buick Electra Ultra V6 3.8L 231cid VIN C
'87-90 Buick LeSabre V6 3.8L 231cid VIN 3 or C
'87-90 Buick LeSabre Custom V6 3.8L 231cid VIN 3 or C
'87-90 Buick LeSabre Limited V6 3.8L 231cid VIN 3 or C
'91-94 Buick Regal Custom V6 3.1L 189cid VIN T or M
'91-93 Buick Regal Limited V6 3.1L 189cid VIN T
'88-89 Buick Skyhawk L4 2.0L 122cid VIN 1 or K
'87 Buick Skyhawk Custom L4 2.0L 122cid VIN 1, K or M
'87 Buick Skyhawk Limited L4 2.0L 122cid VIN 1, K or M
'87 Buick Skyhawk Sport L4 2.0L 122cid VIN 1, K or M
'90 Buick Skylark L4 2.5L 151cid VIN U
'87-88 Buick Skylark Custom V6 3.0L 181cid VIN L
'87-89 Buick Skylark Custom L4 2.5L 151cid VIN U
'94-95 Buick Skylark Custom V6 3.1L 189cid VIN M
'90 Buick Skylark Gran Sport L4 2.5L 151cid VIN U
'94-95 Buick Skylark Gran Sport V6 3.1L 189cid VIN M
'87-88 Buick Skylark Limited L4 2.5L 151cid VIN U
'87-88 Buick Skylark Limited V6 3.0L 181cid VIN L
'94-95 Buick Skylark Limited V6 3.1L 189cid VIN M
'90 Buick Skylark Luxury Edition L4 2.5L 151cid VIN U
'87 Buick Somerset L4 2.5L 151cid VIN U
'87 Buick Somerset V6 3.0L 181cid VIN L
'87 Buick Somerset Limited L4 2.5L 151cid VIN U
'87 Buick Somerset Limited V6 3.0L 181cid VIN L
'85 Chevrolet Astro V6 4.3L 262cid VIN N
'85-90 Chevrolet Astro L4 2.5L 151cid VIN E
'86-90 Chevrolet Astro V6 4.3L 262cid VIN Z
'90 Chevrolet Astro V6 4.3L 262cid VIN B
'88-89 Chevrolet Beretta L4 2.0L 122cid VIN 1
'90-91 Chevrolet Beretta L4 2.2L 134cid VIN G
'90-93 Chevrolet Beretta V6 3.1L 189cid VIN T
'92-93 Chevrolet Beretta L4 2.2L 134cid VIN 4
'94-96 Chevrolet Beretta V6 3.1L 189cid VIN M
'90-93 Chevrolet Beretta GT V6 3.1L 189cid VIN T
'92-93 Chevrolet Beretta GT L4 2.2L 134cid VIN 4
'91-93 Chevrolet Beretta GTZ V6 3.1L 189cid VIN T
'94-96 Chevrolet Beretta Z26 V6 3.1L 189cid VIN M
'94 Chevrolet Blazer V8 6.5L 395cid Diesel VIN S
'93-94 Chevrolet Camaro V6 3.4L 207cid VIN S
'88-89 Chevrolet Cavalier L4 2.0L 122cid VIN 1
'90 Chevrolet Cavalier L4 2.2L 134cid VIN G
'90 Chevrolet Cavalier V6 3.1L 189cid VIN T
'88 Chevrolet Cavalier RS L4 2.0L 122cid VIN 1
'91 Chevrolet Cavalier RS L4 2.2L 134cid VIN G
'91-94 Chevrolet Cavalier RS V6 3.1L 189cid VIN T
'92-94 Chevrolet Cavalier RS L4 2.2L 134cid VIN 4
'88 Chevrolet Cavalier VL L4 2.0L 122cid VIN 1
'90 Chevrolet Cavalier VL L4 2.2L 134cid VIN G
'91-94 Chevrolet Cavalier VL L4 2.2L 134cid VIN G or 4
'90-94 Chevrolet Cavalier Z24 V6 3.1L 189cid VIN T
'88-89 Chevrolet Corsica L4 2.0L 122cid VIN 1
'94-96 Chevrolet Corsica V6 3.1L 189cid VIN M
'90-91 Chevrolet Corsica LT L4 2.2L 134cid VIN G
'90-93 Chevrolet Corsica LT V6 3.1L 189cid VIN T
'92-93 Chevrolet Corsica LT L4 2.2L 134cid VIN 4
'90 Chevrolet Corsica LTZ V6 3.1L 189cid VIN T
'90-95 Chevrolet Corvette ZR-1 V8 5.7L 350cid VIN J
'87-90 Chevrolet LLV (postal vehicle) L4 2.5L 151cid VIN E
'90-92 Chevrolet Lumina L4 2.5L 151cid VIN R
'91-92 Chevrolet Lumina V6 3.1L 189cid VIN T
'91-92 Chevrolet Lumina APV V6 3.1L 189cid VIN D
'92 Chevrolet Lumina Euro V6 3.1L 189cid VIN T
'92 Chevrolet Lumina Euro V6 3.4L 207cid VIN X
'91 Chevrolet Lumina Euro+C134 V6 3.1L 189cid VIN T
'91-92 Chevrolet Lumina Z34 V6 3.4L 207cid VIN X
'95 Chevrolet P30 Van V8 5.7L 350cid VIN K or R
'95-96 Chevrolet P30 Van V6 4.3L 262cid VIN W or Z
'95-96 Chevrolet P30 Van V8 7.4L 454cid VIN J or N
'89-90 Chevrolet S10 Pickup L4 2.5L 151cid VIN E
Post by: GTRS Fiero on December 24, 2018, 06:40:11 pm
'85 GMC Safari L4 2.5L 151cid VIN E
'85 GMC Safari V6 4.3L 262cid VIN N
'86-87 GMC Safari V6 4.3L 262cid VIN Z
'86-90 GMC Safari L4 2.5L 151cid VIN E
'88-90 GMC Safari V6 4.3L 262cid VIN Z
'90 GMC Safari V6 4.3L 262cid VIN B
'89-90 GMC S15 Pickup L4 2.5L 151cid VIN E
'97 GMC MD Bus Chassis V8 6.5L 395cid VIN F
'97 GMC Low Cab Forward V8 6.5L 395cid VIN F
'87-89 Oldsmobile 98 Regency V6 3.8L 231cid VIN 3
'87 Oldsmobile 98 Regency Brougham V6 3.8L 231cid VIN 3
'88-89 Oldsmobile 98 Regency Brougham V6 3.8L 231cid VIN C
'88-89 Oldsmobile 98 Regency Touring V6 3.8L 231cid VIN C
'94-95 Oldsmobile Achieva S V6 3.1L 189cid VIN M
'94 Oldsmobile Achieva SC V6 3.1L 189cid VIN M
'94-95 Oldsmobile Achieva SL V6 3.1L 189cid VIN M
'87 Oldsmobile Calais L4 2.5L 151cid VIN U
'87 Oldsmobile Calais V6 3.0L 181cid VIN L
'87 Oldsmobile Calais Supreme L4 2.5L 151cid VIN U
'87 Oldsmobile Calais Supreme V6 3.0L 181cid VIN L
'88 Oldsmobile Cutlass Calais V6 3.0L 181cid VIN L
'88-91 Oldsmobile Cutlass Calais L4 2.5L 151cid VIN U
'89 Oldsmobile Cutlass Calais S V6 3.3L 204cid VIN N
'89-91 Oldsmobile Cutlass Calais S L4 2.5L 151cid VIN U
'88 Oldsmobile Cutlass Calais SL V6 3.0L 181cid VIN L
'88-89 Oldsmobile Cutlass Calais SL L4 2.5L 151cid VIN U
'89-91 Oldsmobile Cutlass Calais SL V6 3.3L 204cid VIN N
'89-91 Oldsmobile Cutlass Ciera V6 3.3L 204cid VIN N
'91-92 Oldsmobile Cutlass Ciera L4 2.5L 151cid VIN R
'89 Oldsmobile Cutlass Ciera Cruiser V6 3.3L 204cid VIN N
'90 Oldsmobile Cutlass Ciera Cruiser V6 3.3L 204cid VIN N
'91 Oldsmobile Cutlass Ciera Cruiser S V6 3.3L 204cid VIN N
'91-92 Oldsmobile Cutlass Ciera Cruiser S L4 2.5L 151cid VIN R
'89-91 Oldsmobile Cutlass Ciera Cruiser SL V6 3.3L 204cid VIN N
'89-90 Oldsmobile Cutlass Ciera Internat V6 3.3L 204cid VIN N
'90-91 Oldsmobile Cutlass Ciera S V6 3.3L 204cid VIN N
'91 Oldsmobile Cutlass Ciera S L4 2.5L 151cid VIN R
'89-91 Oldsmobile Cutlass Ciera SL V6 3.3L 204cid VIN N
'91 Oldsmobile Cutlass Supreme V6 3.4L 207cid VIN X
'91-92 Oldsmobile Cutlass Supreme V6 3.1L 189cid VIN T
'91-92 Oldsmobile Cutlass Supreme Inernat V6 3.1L 189cid VIN T
'91-92 Oldsmobile Cutlass Supreme Inernat V6 3.4L 207cid VIN X
'92 Oldsmobile Cutlass Supreme S V6 3.1L 189cid VIN T
'92 Oldsmobile Cutlass Supreme S V6 3.4L 207cid VIN X
'91 Oldsmobile Cutlass Supreme SL V6 3.1L 189cid VIN T
'91 Oldsmobile Cutlass Supreme SL V6 3.4L 207cid VIN X
'87-88 Oldsmobile Delta 88 Royale V6 3.8L 231cid VIN 3
'88-90 Oldsmobile Delta 88 Royale V6 3.8L 231cid VIN C
'87-88 Oldsmobile Delta 88 Royale Brougham V6 3.8L 231cid VIN 3
'88-90 Oldsmobile Delta 88 Royale Brougham V6 3.8L 231cid VIN C
'87-88 Oldsmobile Firenza L4 2.0L 122cid VIN K
'88 Oldsmobile Firenza L4 2.0L 121cid VIN 1
'87 Oldsmobile Firenza LC L4 2.0L 122cid VIN K
'87 Oldsmobile Firenza LX L4 2.0L 122cid VIN K
'87 Oldsmobile Firenza S L4 2.0L 122cid VIN K
'91-92 Oldsmobile Silhouette V6 3.1L 189cid VIN D
'91 Pontiac 6000 LE L4 2.5L 151cid VIN R
'91 Pontiac 6000 LE/SE V6 3.1L 189cid VIN T
'87 Pontiac Bonneville V6 3.8L 231cid VIN 3
'87-88 Pontiac Bonneville LE V6 3.8L 231cid VIN 3
'88-90 Pontiac Bonneville LE V6 3.8L 231cid VIN C
'88-89 Pontiac Bonneville SE V6 3.8L 231cid VIN C
'88 Pontiac Fiero L4 2.5L 151cid VIN R
'88 Pontiac Fiero/Fiero GT V6 2.8L 173cid VIN 9
'93-94 Pontiac Firebird V6 3.4L 207cid VIN S
'87 Pontiac Grand Am V6 3.0L 181cid VIN L
'87-88 Pontiac Grand Am L4 2.5L 151cid VIN U
'94-95 Pontiac Grand Am GT V6 3.1L 189cid VIN M
'87 Pontiac Grand Am LE V6 3.0L 181cid VIN L
'87-88 Pontiac Grand Am LE L4 2.0L 122cid VIN M
'87-90 Pontiac Grand Am LE L4 2.5L 151cid VIN U
'87 Pontiac Grand Am SE L4 2.5L 151cid VIN U
'87 Pontiac Grand Am SE V6 3.0L 181cid VIN L
'87-89 Pontiac Grand Am SE L4 2.0L 122cid VIN M
'94-94 Pontiac Grand Am SE V6 3.1L 189cid VIN M
'92 Pontiac Grand Prix V6 3.4L 207cid VIN X
'91-92 Pontiac Grand Prix GT V6 3.1L 189cid VIN T
'91-92 Pontiac Grand Prix GT V6 3.4L 207cid VIN X
'91-92 Pontiac Grand Prix LE V6 3.1L 189cid VIN T
'92 Pontiac Grand Prix LE V6 3.4L 207cid VIN X
'91-92 Pontiac Grand Prix SE V6 3.1L 189cid VIN T
'91-92 Pontiac Grand Prix SE V6 3.4L 207cid VIN X
'91-92 Pontiac Grand Prix STE V6 3.1L 189cid VIN T
'91-92 Pontiac Grand Prix STE V6 3.4L 207cid VIN X
'87-88 Pontiac Sunbird L4 2.0L 122cid VIN K
'91 Pontiac Sunbird L4 2.0L 122cid VIN K
'94 Pontiac Sunbird V6 3.1L 189cid VIN T
'87-90 Pontiac Sunbird GT L4 2.0L 122cid VIN K or M
'91-93 Pontiac Sunbird GT V6 3.1L 189cid VIN T
'89-91 Pontiac Sunbird LE L4 2.0L 122cid VIN K
'90 Pontiac Sunbird LE L4 2.0L 122cid VIN M
'91 Pontiac Sunbird LE V6 3.1L 189cid VIN T
'92-93 Pontiac Sunbird LE L4 2.0L 122cid VIN H
'93-94 Pontiac Sunbird LE V6 3.1L 189cid VIN T
'87-89 Pontiac Sunbird SE L4 2.0L 122cid VIN M
'87-91 Pontiac Sunbird SE L4 2.0L 122cid VIN K
'91-94 Pontiac Sunbird SE V6 3.1L 189cid VIN T
'92-93 Pontiac Sunbird SE L4 2.0L 122cid VIN H
'91-92 Pontiac Trans Sport V6 3.1L 189cid VIN D
Post by: GTRS Fiero on December 24, 2018, 06:40:29 pm
The overhead console in the Fiero contains cabin lights and, in cars so equipped, the control for the subwoofer system. If you are willing to do a little modification there are a couple of overhead consoles which we understand can be retrofit to the Fiero to update it and provide a bit more room for other electronics.
Supposedly the overhead console from a Grand Am and a GMC Jimmy will fit the Fiero with some minor modifications to the Fiero headliner. At this writing we do not know which model years provide the best version of the overhead console. If you perform this modification we would appreciate feedback with details.
Post by: GTRS Fiero on December 24, 2018, 06:40:48 pm
The factory paint is a base coat with a clear coat finish. The base coat is a thermoset acrylic enamel, not a urethane. The clear coat is urethane. The paint code which indicates the original factory paint color is located on the Service Parts Identification Label (also known as the "RPO [Regular Production Option] Sticker") on the left front fender well near the brake master cylinder.
The paint code is the last item listed and is in the form WA-NNNN (N = any number). If a Fiero had the "ground effects", two numbers will be listed, usually with a "U" and "L" for upper and lower colors. The number(s) shown is the Fisher Body "WA" paint number. (Fisher Body is the division of GM that produced and painted the car body.) Use this number when buying matching paint from any paint supplier. Touch-up paint suppliers such as PlastiKote and Dupli-Color also use this number as a cross-reference. Use the cross-reference manual found by the paint display in your auto parts store to obtain the correct spray can or bottle for your car. Or if you are repainting the entire car, give this number to your painter.
Due to aging of old paint, new paint will not be the same shade. If a Fiero is repainted we suggest use of the newer two-part urethane systems even though one-part acrylic systems may be cheaper. If you are a do-it-yourself painter, the Kirker brand (kirkerautomotive.com) of urethane paints is economical and decent quality. Many painters recommend premium paints such as DuPont and Sikkens for top quality results.
A helpful web site for touch-up paints is http://www.paintscratch.com/
Post by: GTRS Fiero on December 24, 2018, 06:41:05 pm
The rubber elbow and grommet on the Positive Crankcase Ventilation (PCV) line become brittle with age and can leak. Replacement is easy with the following parts:
PCV Rubber Elbow '84 2.5L Help! 47036
PCV Rubber Elbow '85-86 2.5L Help! 47037
PCV Rubber Elbow '87-88 2.5L Help! 47038
PCV Rubber Elbow '85-88 2.8L Help! 47054
PCV Rubber Grommet '84-86 2.5L Help! 42310
PCV Rubber Grommet '87-88 2.5L Help! 42322
PCV Rubber Grommet '85-88 2.8L Help! 42062
Post by: GTRS Fiero on December 24, 2018, 06:41:20 pm
Fortunately the pressure plate in the Fiero manual transmission is still easy to obtain.
'84 All
Buick Skyhawk '85-86 2.0L four speed
Buick Skyhawk '87 2.0L w/o turbo or OHC
Cadillac Cimarron '85-86 2.8L four speed
Chevy Cavalier '85-87 four speed
Olds Firenza '85-86 2.0L
Olds Firenza '85-86 2.8L
Olds Firenza '87 2.0L w/o OHC
Pontiac Sunbird '85-86 2.0L
'85-88 2.5L: All 2.5L Fieros for '85-88 used the same pressure plate which is unique to the Fiero. No other cars used the same GM pressure plate. Aftermarket replacements are available from auto parts suppliers.
'85 2.8L & '86 2.8L 4-speed: These Fieros used a pressure plate which is unique to the Fiero. No other cars used the same GM pressure plate. Aftermarket replacements are available from auto parts suppliers.
'86-88 5-speed
Cadillac Cimarron '87
Chevy Beretta '87-89 2.8L
Chevy Beretta '90-92 3.1L
Chevy Cavalier '87 2.8L five speed
Chevy Cavalier '88-89 2.8L
Chevy Cavalier '90-92 3.1L
Chevy Celebrity '87-88 2.8L
Chevy Corsica '87-89 2.8L
Chevy Corsica '90-92 3.1L
Olds Cutlass '88-89 2.8L
Olds Firenza '87 2.8L
Pontiac 6000 '87-88 2.8L
Pontiac Grand Prix '88-89
Pontiac Sunbird '91-92 3.1L
Pontiac Tempest '87-89 2.8L
Pontiac Tempest '90-92 3.1L
Post by: GTRS Fiero on December 24, 2018, 06:41:40 pm
RADIATOR: The aluminum core radiators used in Fieros are unique and no other cars use these identical radiators. (One of the Chevette radiators is very similar except for mounting holes.) Some models of the Fiero have thinner radiators than others. The thicker model has greater cooling capacity and will swap to any Fiero. The V-6 Fiero came standard with the thicker radiator. Fieros with the four cylinder engine used both types during their production lifetime. The "thin" radiator has a size of 15" x 19.75" x 1". The "thick" radiator has a size of 15" x 19.75" x 1.375". Replacements are readily available from conventional parts suppliers. One source for radiators is Auto Radiator Outlet in Sacramento, CA, at 800-252-0333.
Ledfoot Racing of Orange, California, makes a line of radiators called Champion Radiators (championradiators.com). Their radiator part no. CC828 fits any Fiero with a little modification of the supports and brackets. Installation photos are at this link: fiero.nl/forum/Forum2/HTML/098899-2.html This is a 3-core all-aluminum radiator and is reported to be an excellent product. According to the Champion web site, the radiator can handle engines up to 450 HP.
If you have a specialty radiator situation such as for a large V-8 installation, try Superior Radiator near Detroit, Michigan. http://www.wwwsuperiorradiator.com
RADIATOR CAP: The radiator cap in the Fiero is a 15 PSI non-vented type and is readily available as an aftermarket item. Be careful to get the non-vented version to avoid overheating. EVERY auto parts supplier we have checked has the wrong radiator cap listed in their computer for the Fiero. Be certain to get the non-vented type. The original GM cap is preferred, Part No. 10230 (or 10036879 is the old number). AC Delco also makes a good replacement cap under their number RC27. It can be found at acdelco.com. A suitable replacement from parts stores is Stant No. 11230. We also understand that Stant has a new cap for the Fiero, No. 45819. We have not had an opportunity to verify this new version and would appreciate feedback from anyone who has.
THERMOSTAT CAP: Note that the thermostat cap is not the same as the radiator cap. The thermostat cap is available from AC Delco (acdelco.com) under their part number RC40. This cap is also available from auto parts stores.
COOLANT HOSES: The molded coolant hoses for the Fiero appear to be unique and not used on other cars. The following list of hoses by Gates Rubber should fit any V-6 Fiero although some trimming is required on some hoses.
Coolant Hoses for '85-87 2.8L Engine, Gates Part Numbers:
Upper - Engine to Crossover Pipe 20661
Upper - Crossover Pipe to Lateral Pipe 21532
Upper - Lateral Pipe to Radiator 21439
Lower - Lateral Pipe to Engine 21594
Lower - Radiator to Lateral Pipe 20940
Heater to Pipe-1, w/o A/C 19602
Heater to Pipe-2 Gates 18853, Delco 16078M
Pipe 2 to Pipe 3 20338
Throttle Body to Pipe 5/16" x 3"
Throttle Body to Engine 10820
We understand but cannot confirm first-hand that Advance Auto part no. E72003 will replace the "lateral pipe to engine" hose, although it is longer and must be cut on both ends to fit properly. Also, the end which attaches to the engine (water pump inlet) is a tight fit.
Coolant Hoses for 1988 V-6 2.8L Engine, Gates Part Numbers:
Upper - Engine to Crossover Pipe 20661
Upper - Crossover Pipe to Lateral Pipe 21763
Upper - Lateral Pipe to Radiator 21764
Lower - Lateral Pipe to Engine 21758
Lower - Radiator to Lateral Pipe 21708
Heater to Pipe-1, w/o A/C 19602, Delco 18117L
Heater to Pipe-2, w/o A/C 18836
Heater to Pipe-1, w/ A/C not avail.
Heater to Pipe-2, w/ A/C not avail.
Pipe 2 to Pipe 3 20338
Throttle Body to Pipe 5/16" x 3"
Throttle Body to Engine 10820
Coolant Hoses for the '84 2.5L Engine:
Gates # Goodyear #
Upper - Pipe To Rad. 21439 Cut to fit 61329
Upper - Eng. To Pipe 21487 Cut to fit 61077
Lower - Pipe To Rad. 20940 Cut to fit 61329
Lower - Eng. To Pipe 21422
Heater To Pipe-1 19602 Cut to fit 63242
Pipe-1 To W.P. 19608 Cut to fit
Heater To Pipe-2 18853 Cut to fit 63149
Pipe-2 To Pipe-3 28466 Cut to fit 63806
Pipe-3 To Pipe-4 28466 Cut to fit 63806
Some of the hoses for '84 are noted as "Cut to fit" and we suspect these may fit other cars also. Some of the Goodyear hoses may be the corrugated flexible size to fit multiple vehicles.
You can find a local supplier of the Gates hoses via this web site: http://www.gates.com/part_locator/reverselookup.cfm
You can find Goodyear parts such as hoses and belts at this web site: http://partfinder.veyance.com/
Note that for an '88 Fiero with air conditioning there is no listing for "heater to pipe" hoses. The best solution we know is to take the old hoses to a parts store and ask the clerk to allow you to peruse all the heater hoses for a close match. We have done this successfully and found that getting longer-than-necessary hoses with a few of the necessary bends will work. We installed such hoses in our '88 and then cut them at the pipe end to suit.
Many Fiero V6 owners report that removal of the hoses/pipes to the throttle body will not harm performance. In fact it is curious that these items were provided by GM. Presumably the hot coolant is routed to the throttle body to eliminate icing. Since the throttle body is unlike a carburetor and has minimal venturi effect, icing should be impossible. We have never heard of icing in a Fiero throttle body. The throttle body hoses have been removed from both our '88 Fieros for years and performance has been unaffected.
HEATER CORE: The Fiero heater core is in the front above the passenger footwell. This requires hot coolant to be routed from the engine to the front of the car. On the '88 Fiero, the heating hoses run from the engine and connect to pipes below the battery next to the base of the firewall. The connection between the rubber hoses and metal pipes is a quick disconnect. The disconnect is plastic and deteriorates over time. The replacement is Dorman #800-405. Since this item is not in high demand you will probably have to order it if you need it. Stores like AutoZone, Advance Auto, etc., will gladly do this. The cost is about $4. Changing the quick disconnect is made easier by using a special tool, Dorman #800-408. You can view the Dorman products at dormanproducts.com.
Post by: GTRS Fiero on December 24, 2018, 06:41:55 pm
Several radio models were used in the Fiero. Listing all the variations and the cars which used corresponding radios is pointless since OEM and aftermarket replacements are readily available. (For a used radio, check late '80s GM cars in any salvage yard.) One of the options available was "Premium Sound" with a sub woofer. As far as we can determine no other vehicle used the same sub woofer system so replacements will have to come from a donor Fiero.
Newer GM radios which will fit the Fiero and maintain the factory look can be found in salvage yards and via the Internet. The radio/CD unit from early '90s Pontiac Pontiac Grand Ams is a popular choice. Wiring adapters or modification of the connectors is required. If radios are salvaged from other cars be sure any security features can be bypassed. The Fiero radio size is "1.5 DIN". Many aftermarket radios are made to this size and will fit with few modifications.
Post by: GTRS Fiero on December 24, 2018, 06:42:12 pm
'85-88 Notchback: Sail panels are the small triangular "windows" behind each door on the notchback style Fiero. (The notchback style is any Fiero other than the '86-88 GT.) All sail panels consist of a black molded frame with glass or acrylic inserts. The '84 frame is different than later years but will transfer to any year notchback. The '85-88 frames can also be retrofitted to an '84 with no difficulty if the fasteners are in good condition. The inserts in the 1984 Fiero are glass and tend to age well. The inserts in the '85-88 Fiero are cast or sheet acrylic and frequently have cracks and hazing due to long-term exposure. GM replacements are no longer available.
Aftermarket sail panels (inserts) for '85-88 Fieros are available from fierosails.com. Good used frames are available from thefierofactory.com.
Arrowhead Emblems: This emblem (GM P/N 20468876) found on sail panel frames is no longer available from GM but can be found at fierostore.com. If you can't find replacements, the mounting recess for the arrowhead can be shaved off the sail panel frame and the resulting nicks filled and painted. If you do this you can replace the old emblem with a new version from a mid-'90s Grand Am which is almost the same size as the original. The new emblem is a peel-and stick version, GM Part No. 22591098, which in early 2005 was $10.46 at gmpartsdirect,com. In our opinion this emblem looks better than the original.
'86-88 GT Fastback The factory quarter windows on the '86-88 GT are made of cast acrylic (not Lexan as stated by some suppliers, including GM!) and tend to show hazing and cracking similar to sail panels on the notchback Fiero. Replacements are sometimes available from GM for about $150 per side and appear to be original manufacture. This implies that they may incur hazing and cracking problems over time. The part numbers are needed if ordering from GM. They are 20701106 (right) and 20701107 (left).
Aftermarket quarter windows are available from fierowarehouse.com and from Lori at thefierofactory.com. They are close to, but not exactly like, OEM quarter windows. Prices are about $100-$130 per side.
Post by: GTRS Fiero on December 24, 2018, 06:42:31 pm
SEATS '84-88: The Fiero driver's seat is notorious for tearing on the bolster due to wear from the driver's repeated entry and exit. The upholstery can be repaired or replaced by any competent auto upholstery shop. The seat backs in the '84-85 Fiero have provisions for speakers in the headrest.
The two seats in the Fiero are not a direct swap, but the seat bottoms will swap and the seat covers will swap. So you can extend the life of the driver's side seat cover by swapping the passenger side base. The seat backs will not swap due to the hardware for the recliner mechanism.
If you wish to use non-Fiero seats, we understand but cannot confirm the seats below will fit the Fiero. Some fabrication or modification to mounting systems may be required.
'95-99 Chevy Cavalier
2005 Chevy Cavalier
'92-93 Pontiac Grand Am
'93-95 Firebird/Camaro
2001 Camaro
'92 Sunbird
'97 Sunbird
'99 Sunbird GT
'94 Saturn SC
Mid '80s Corvette
Late '80s Grand Am
Late '80s early '90s Firebird/Camaro/Tans Am
Honda Del Sol (years unknown)
Seats from other cars may require adapter plates or other fabrication to fit the bolt locations in the Fiero. Note that the floorboard bolts in the Fiero do not penetrate the floor but are captured in raised portions of the sheet metal. You can re-locate mounting holes but that will probably mean full penetration of the floor. Be prepared to properly seal any penetrations and protect the metal from corrosion.
Leather seat cover kits are available from mrmikes.com and can be installed by a competent do-it-yourselfer.
We understand that you can add power seats to a Fiero if you can handle the wiring. The power seat base in an Oldsmobile Calais (not sure what year) will bolt to a stock Fiero seat. The electric switches in the seat base must be moved to avoid interefering with the Fiero parking brake.
SEAT BELTS '84-88: Seat belts wear well and normally do not need replacing although periodic cleaning is appropriate. Some owners find the belt color objectionable and want new or used seat belts of a different color. We have read that the seatbelt mechanism is unique to the Fiero and therefore used seatbelts from other cars do not exist. We have also read that some of the late '80s Firebird seat belts are the same as the Fiero. We do not which version is true. It is possible to obtain racing seat belts (4 or 5-point suspension) which will fit the Fiero. It is also possible to get new belt material from JC Whitney which is then sewn to the Fiero hardware. Many upholstery shops will not handle the sewing of seatbelts because of liability issues.
Post by: GTRS Fiero on December 24, 2018, 06:42:49 pm
The shift knobs in the Fiero, both auto and manual, are common to many late '80s GM cars. For example, the leather shift knob from an '87 Firebird fits the Fiero perfectly. The part number is 10126477. Many aftermarket knobs are made which will work in the Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:43:09 pm
Dash Speakers: All model Fieros used the same dash speakers, 10 Ohm 4" x 10" Delco units. As far as we can determine, the vehicles below used the same speakers somewhere in the vehicle. Note that Fieros which had "Premium Sound" (sub woofer option) had different speakers than other Fieros. A minimal amount of data on the "premium sound" speakers is shown below. ("Premium Sound" is the option which includes a separate amplifier and subwoofer system.)
Buick Skyhawk '85-89
Cadillac Eldorado '84-85
Chevy Blazer '88-94
Chevy Cavalier '85-94
Chevy Cavalier RS '86-90
Chevy Cavalier Z24 '85-87
Chevy Citation II '85
Chevy El Camino '85-88
Chevy Monte Carlo '78-88
Chevy Pickup EL '85-88
Chevy Pickup S10 '86-95
Chevy Suburban '92-95
Chevy Suburban '92-95
GM Caballero '85-88
GM Jimmy '88
GM Sonoma '93-95
GM Yukon '92-94
GMC Pickup '91-95
GMC Pickup Cab '85
GMC Pickup S15 '86-93
Olds 98 '84
Olds Custom Cruiser '90
Olds Cutlass '84-88
Olds Regal '78-87
Olds Riviera '84-85
Pontiac Bonneville '85-86
Pontiac Grand Prix '86-87
Pontiac Sunbird '84-88
Saab 900 '86-93
The original Fiero speakers are 10 ohm impedance. For optimum life on the factory radio/amplifier you should use 10 ohm replacements. Use of 8 ohm speakers or worse, 4 ohm speakers, will cause the amplifier to run hotter for the equivalent sound level as a 10 ohm speaker. If you do not run your radio/stereo at full volume, use of speakers which are not 10 ohm impedance should not make much difference.
We have read that the '98 and newer Chevy Tahoe and Chevy Suburban have 4 x 10 rear speakers which will transfer easily to the Fiero and work well. We do not have personal experience with this swap.
A same-size inexpensive replacement for the dash speaker is available under the brand name "Linear Research", Stock Number LR410S. This is a Chinese-made speaker which is advertised as 75 Watts nominal, dual cone, for 4-8 Ohm systems. This has been used successfully even though the OEM speakers are 10 Ohm impedance. We suggest the Linear Research speakers are not a good choice with high-power amplifiers but they do work with standard Fiero radio/tape players and would be a reasonable choice when repairing a car for purposes of sale. We have seen these speakers available at Pep Boys for around $15. The distributor is Recoton Company, 1090 Emma Oaks Trail, Lake Mary, FL 32746, (800) 732-6866.
There are many good quality aftermarket speakers such as Kenwood KFC-451C, Pioneer TSA-4103/4105 and AutoBahn AS41Q at about $100 a pair. The "Eclipse" brand is also reputed to be a good choice as are the Polk MOMO line, although the Polk units were discontinued in 2007 and may only be found on places like eBay. The Pyle PLG41.3 4"x10" Triaxial Speaker Pair is reportedly a very good replacement at around $33/pair plus shipping. Speakers are available at most audio shops and via the Internet at sites such as crutchfield.com and cardiscountstereos.com. Some speakers will come with plugs requiring an adapter or will need the wiring soldered or mechanically spliced. See the heading "Speaker Connections" below in this regard.
If you have the "premium sound option", the speakers are two-way units and provide better sound quality than the conventional OEM speaker. As of April 2005, replacement two-way dash speakers are available from GM Parts Direct for $27.44 each; the part number is 16042082. Unfortunately we do not have the part number for the companion sail panel speakers.
'86-88 B-Pillar Spkr.: The speakers in the B-pillars (also referred to as the "sail panel" speakers) are 4" x 6" and there are at least a dozen speakers made that will fit. The Rockford Fosgate FRC3246, Pioneer TS-4667, Kenwood KFC-4675, and AudoBahn AS46Q are some examples.
'84-85 Headrest Spkr.: The headrest speakers were a feature in '84-85 Fieros only. They are 3.5" diameter with 10 Ohm impedence. Many companies make a 3.5" speaker which can replace the originals and we have even seen them on blister packs in Wal Mart. Four speakers are required (two per seat) if a complete replacement is performed. Infinity, Polk, JBL, and AudoBahn are some of the manufacturers who make 3.5" speakers. The Sony Mobile XS-W3521 and Clearwater CWC-3D are 3.5" speakers which have both been sold on eBay as replacements for the Fiero (and Miata) headrest speakers. We have no personal experience with either but both have favorable comments on Fiero forums. A 4" speaker can be made to fit the headrest by trimming the surrounding foam. Information for adding headrest speakers can be found at this link: http://mrmikes.com/fierospeakers.htm
Sub woofer: The 5.25" speaker in the factory "Premium Sound" sub woofer is prone to failure due to age. The speaker frequently fails at the flex joint between the paper cone and the speaker frame. This usually can be repaired at less than the cost of a new speaker.
If a new speaker is desired, JL Audio makes one but we don't have the part number. Radio Shack makes a 5.25" Woofer (#40-1032) for about $20. Its wattage is 30 RMS, 60 peak, effective range 80-8,000 Hz, but we do not know the impedance and it may not be a good match for the amplifier. You will need to use some spacing material at the four mounting screws if this speaker is used. Sub woofer speakers can also be obtained at rodneydickman.com for about $35-40.
Speaker Connections: If you are working on speakers, note that the terminals labeled "A" and "B" on Delco speakers are - and +, respectively.
When using aftermarket speakers you may want adapters to connect the new speakers without resorting to cutting, splicing, or soldering. If so, you will need plug-in adapters to match the new speaker connections with the Fiero connector. In December of 2008 the following adapters were found using a web search. We have not verified these personally and you should check carefully to make sure they match both the old connector and new speakers:
From Circuitcity.com, Item number MET DW4500SH, $12.99/pair
From Crutchfield.com, Item number 12071009, $9.99/pair
From GDIElectronics.com, Metra part number 724500, $4.62/pair
Custom Installation, Soundproofing: An excellent writeup on upgrading the sound system in a Fiero is located at this link:
http://www.fiero.nl/forum/Forum3/HTML/000031.html
Post by: GTRS Fiero on December 24, 2018, 06:43:30 pm
The transmissions in a Fiero contain a gear-driven assembly that provides an electronic pulse used by the speedometer, Engine Control Module (computer), and ignition module. We do not have information on the speed sensor for the automatic transmission. The speed sensor for the manual transmission was common to the following vehicles, IF these vehicles also had manual transmissions:
For '85-88 Fiero
'86-87 Buick Skylark
'86-87 Buick Somerset
'88-89 Oldsmobile Cutlass Calais
'86 Pontiac 6000
'85-89 Pontiac Grand Am
'85-88 Pontiac Sunbird
Post by: GTRS Fiero on December 24, 2018, 06:43:53 pm
Stabilizer Bar: The '84-87 Fiero uses a 23 mm diameter stabilizer bar in the front but not the rear. The front Stabilizer Bar from an '87-99 GM H-body car (Bonneville, Olds 98) will fit the '84-87 Fiero.
New sway bars are available from the Fiero Store. A slightly larger 1" bar (25 mm) is available from Addco through AutoZone. The AutoZone part number is 758U (delete the "U" if you do not want urethane bushings) and it must be special ordered.
The '88 Fiero used a stabilizer bar in front and in the rear. We have no information about other cars using the same bar. New bars for the '88 are available from the Fiero Store. We have read that the front stabilizer bar on a 2000 Grand Prix will fit on the rear of the Fiero. We suspect that is true for only the '84-87 Fiero but do not know.
Post by: GTRS Fiero on December 24, 2018, 06:44:11 pm
'84-88: All Fieros used the same starter motor and it is common to many other cars. Starters which fit the Fiero will have one of the following identification numbers: 10455019, 10455020, 10455023, 10455055, 10465019, 10465034, 10465035, 10465394, 10495397, 10495398, 1109565, 1998429, 1998503, 1990584, 1998511, 1998523, 1998528, 1998533, 8104550230, 8104550550. Starter motors from the cars listed below will fit the Fiero.
Newer technology starter motors are available which fit both the 2.5L and 2.8L Fiero engines. We do not have GM part numbers but understand that 1996 and newer GM cars with the 60 degree V6 engine have a suitable mini-starter about half the size and weight of the original Fiero starter. For example, the starter from a 1998 Grand Prix 3.8L is an excellent replacement and about 7 pounds lighter than the original. The AutoZone part number for a suitable replacement is 96211.
Buick Century '83 2.8L Ident. 1109564
Buick Century '84-89 2.8L
Buick Century '93 2.2L
Buick Skyhawk '84-88 Except OHC
Buick Skyhawk '89
Buick Skylark '83 2.8L Ident. 1109564
Buick Skylark '84-85 2.8L
Cadillac Cimarron '84-88
Chevy Beretta '87-89
Chevy Beretta '90 3.1L
Chevy Beretta '92 2.2L 10 mm batt. conn. stud
Chevy Beretta '93 2.2L
Chevy Cavalier '84-89
Chevy Cavalier '92 2.2L 10 mm batt. conn. stud
Chevy Cavalier '93 2.2L
Chevy Celebrity '83 2.8L Ident. 1109564
Chevy Celebrity '84-85 2.8L
Chevy Celebrity '86-90 6 cylinder
Chevy Citation '83 2.8L Ident. 1109564
Chevy Citation '84-85 2.8L
Chevy Corsica '87-89
Chevy Corsica '90 3.1L
Chevy Corsica '92 2.2L 10 mm batt. conn. stud
Chevy Corsica '93 2.2L
Chevy Lumina Car '90 3.1L
Chevy Lumina Van '90 3.1L
Isuzu Trooper '88-91 2.8L
Olds Ciera '83 2.8L Ident. 1109564
Olds Ciera '84-89 2.8L
Olds Ciera '93 2.2L
Olds Cutlass '88-89 2.8L
Olds Cutlass '89-90 3.1L
Olds Firenza '84 OHV
Olds Firenza '85-86 2.0L
Olds Firenza '85-86 2.8L
Olds Firenza '87 2.0L OHV
Olds Firenza '87 2.8L
Olds Firenza '88 OHV
Olds Omega '83 2.8L Ident. 1109564
Olds Omega '84 2.8L
Olds Regal '88-89
Olds Regal '90 3.1L
Olds Regal '91 3.1L 10 mm batt. conn. stud
Olds Silhouette '90
Pontiac 2000 '84 OHV
Pontiac 6000 '83 2.8L Ident. 1109564
Pontiac 6000 '84-89 2.8L
Pontiac 6000 '88-91 3.1L
Pontiac Grand Prix '88-89
Pontiac Grand Prix '90 3.1L
Pontiac Phoenix '83 2.8L Ident. 1109564
Pontiac Phoenix '84 2.8L
Pontiac Sunbird '85-86 OHV
Pontiac Tempest '87-90
Pontiac Tempest '92 2.2L 10 mm batt. conn. stud
Pontiac Tempest '93 2.2L
Pontiac Trans Sport '90
Alternative Starter Motors: The starter motors on the vehicles below will fit the Fiero by switching the starter motor nose housing. The starters will have one of the following identification numbers: 10455013, 10455050, 10455065, 10465065, 12558851.
Chevy Blazer S10/GM Jimmy S15 '91-94 3.1L
Chevy Blazer S10/GM Jimmy S15 '95
Chevy Forward Control '90-93 4.3L
Chevy Pickup '90-91 4.3L
Chevy Pickup '91 5.0L
Chevy Pickup '92 4.3L
Chevy Pickup '92 5.0L 100 amp alternator
Chevy Pickup '93 4.3L
Chevy Pickup '93 5.0L 100 amp alternator
Chevy Pickup '94 4.3L
Chevy Pickup '94 5.0L 100 amp alternator
Chevy Pickup '96-97 4.3L
Chevy Pickup '96-97 5.0L
Chevy Pickup '96-97 5.7L Except Crew Cab
Chevy Pickup '98 4.3L
Chevy Pickup '98 5.0L
Chevy Pickup '98 5.7L 1500 Series Ext. Cab, 155.5" whl base
Chevy Pickup '98 5.7L 1500 Series Regular Cab
Chevy Pickup '98 5.7L 2500 Series
Chevy Pickup '98 5.7L 3500 Series w/o Crew Cab
Chevy Suburban '97-98 5.7L
Chevy Tahoe/GM Yukon '97 5.7L
Chevy Tahoe/GM Yukon '98 5.7L 2 door
Chevy Tahoe/GM Yukon '98 5.7L 4 door 4x2
Chevy Van '91-93 4.3L
Chevy Van '91-93 5.0L
Chevy Van '94 4.3L
Chevy Van '94 5.0L
Chevy Van '95-98 4.3L
Chevy Van '95-98 5.0L
GM Syclone '91
GM Typhoon '92-93 4.3L
GMC Forward Control '90-93 4.3L
GMC Pickup '90-91 4.3L
GMC Pickup '91 5.0L
GMC Pickup '92 4.3L
GMC Pickup '92 5.0L 100 amp alternator
GMC Pickup '93 4.3L
GMC Pickup '93 5.0L 100 amp alternator
GMC Pickup '94 4.3L
GMC Pickup '94 5.0L 100 amp alternator
GMC Pickup '96-97 4.3L
GMC Pickup '96-97 5.0L
GMC Pickup '96-97 5.7L Except Crew Cab
GMC Pickup '98 4.3L
GMC Pickup '98 5.0L
GMC Pickup '98 5.7L 1500 Series Ext. Cab, 155.5" whl base
GMC Pickup '98 5.7L 1500 Series Regular Cab
GMC Pickup '98 5.7L 2500 Series
GMC Pickup '98 5.7L 3500 Series w/o Crew Cab
GMC Van '91-93 4.3L
GMC Van '91-93 5.0L
GMC Van '94 4.3L
GMC Van '94 5.0L
GMC Van '95-98 4.3L
GMC Van '95-98 5.0L
Olds Bravada '91-94
Pontiac Astro '91-96
Pontiac Safari (GMC) '91-96
S10/S15/GM Sonoma '91-95 4.3L
Post by: GTRS Fiero on December 24, 2018, 06:44:28 pm
STEERING KNUCKLE (SPINDLE) '84-87: The steering knuckle in the '84-87 Fiero is also used in the cars below:
Pontiac 1000 '81-87
Pontiac Acadian '76-87
Chevette '76-87
STEERING KNUCKLE (SPINDLE) '88: The steering knuckles are unique to the '88 Fiero and not used in other cars. Replacements are available from the Fiero Store and rodneydickman.com.
Tie Rod Ends '88: The tie rod end for the '88 Fiero has Moog part number ES3238RL and NAPA part number 269-2957. These cross references to other GM models as follows:
BUICK
1995 - 1996 Riviera, all engines
1992 - 1992 Century FWD, all engines
1992 - 1993 Riviera, all engines
CADILLAC
1992 - 1996 Seville, all engines
1992 - 1993 Allante, all engines
1994 - 1996 DeVille, all engines
1992 - 1996 Eldorado, all engines
CHEVROLET
1993 - 2002 Camaro, all engines
CHEVY TRUCK
1992 - 1992 LUMINA APV, all engines
OLDSMOBILE
1995 - 1996 Aurora, all engines
1992 - 1992 Toronado, all engines
1992 - 1992 Cutlass Ciera FWD, all engines
OLDSMOBILE TRUCK
1992 - 1992 Silhouette, all engines
PONTIAC
1993 - 2002 Firebird, all engines
PONTIAC TRUCK
1992 - 1992 Trans Sport, all engines
SATURN
1991 - 2002 SC Coupe, all engines
1991 - 2002 SL Sedan, all engines
1993 - 2001 SW Wagon, all engines
CONTROL ARM, UPPER The upper control arm is unique to the Fiero. If parts are interchanged from other Fieros, note that beginning in 1986 GM provided a revised design with 1.6 degrees more positive camber. This arm was listed as a replacement for '84-85 Fieros (in the event replacement was required due to damage). Later in 1986 GM reverted to the earlier design. To minimize confusion, we are listing the part numbers for all years so it can be easily determined which control arms are used in each car.
Year Left Side P/N Right Side P/N
1984 10023748 (orig) 10023747 (orig.)
14094449 (repl) 14094450 (repl.)
1985 10023748 (orig) 10023747 (orig.)
14094449 (repl) 14094450 (repl.)
1986 10023748 (orig) 10023747 (orig.)
14094449 (repl) 14094450 (repl.)
1987 10023748 10023747
1988 coupe 10068613 10068614
1988 GT & Formula 10068615 10068616
CONTROL ARM, LOWER The lower control arms are also unique to the Fiero. Use donor parts when replacing. If replacing only one, be sure to observe proper part numbers.
Year Left Side P/N Right Side P/N
1984 10032528 10032527
1985 10042391 10042392
1986 10042391 10042392
1987 10042391 10042392
1988 coupe 10068637 10068638
1988 GT & Formula 10068611 10068612
REAR STRUTS
'84-87: The rear struts are unique to the '84-87 Fiero. Replacements are readily available from parts stores provided old springs are transferred to new struts.
'88: The rear struts are unique to the '88 Fiero. Replacements are available provided old springs are transferred to new struts. The top mounting plate for the strut differed on the GT and Formula which had the heavy-duty "WS6" suspension. Monroe strut number 10097835 will work for the '88 Fiero. Earlier year struts will work on the '88 if the holes are elongated where the strut mounts to the knuckle.
Rear Strut Mount Kit: A rear strut mounting kit for all Fieros is Strut-Tite 69647.
SUSPENSION BUSHINGS
Rubber bushings for Fiero control arms, sway bars, and sway bar links are no longer listed as available from GM. Moog makes aftermarket rubber bushings for the '84-87 Fiero and GM has part numbers that are said to work for the '88. Polyurethane bushings are also popular replacements and can be found at suspensionparts.com.
Bushing, Upper Control Arm '84-87 Moog K6170
Bushing, Lower Control Arm '84-87 Moog K6163
Busing, Upper Control Arm '88 GM 462980
Bushing, Lower Control Arm '88 GM 470722
Sway Bar, Front '84-88 0.8125" dia. or smaller, Moog K5242
Sway Bar, Front '84-88 0.875" dia. or larger, Moog K5242
Sway Bar End Link Bushings '84-88 Moog K6262
SUSPENSION KIT '88
As of January 2005, an $85 kit of suspension parts (#4-0460) is available for the '88 Fiero from www.mmsacc-stainless.com which contains the following items:
Brake Caliper
Brake Dust Shield
Brake Hose Clamp
Lower Ball Joint
Lower Control Arm Mount
Rubber Bump Stop
Lower Shock Mount
Upper Sock Mount
Sway Bar Clamp
Tie Rod End
Upper Ball Joint
Upper Control Arm Shaft End
Upper Control Arm Shaft Mount
SPRINGS, FRONT
'84: The front springs are unique to the '84 Fiero. Various spring rates were available. (We don't know how many). If springs are transferred from another Fiero they should be in pairs. The springs are identified by yellow tags. If the tags are missing it is impossible to determine the spring rate by visual inspection.
'85-87: The front springs are unique to the '85-87 Fiero. Various spring rates were available. (We don't know how many). If springs are transferred from another Fiero they should be in pairs. The springs are identified by yellow tags. If the tags are missing it is impossible to determine the spring rate by visual inspection.
'88: The front springs are unique to the '88 Fiero. At least five spring rates were available. If springs are transferred from another Fiero they should be in pairs. The springs are identified by yellow tags. If the tags are missing it is impossible to determine the spring rate by visual inspection.
SPRINGS, REAR
'84-87: The rear springs are unique to the '84-87 Fiero. At least four spring rates were available. If springs are transferred from another Fiero they should be in pairs. The springs are identified by yellow tags. If the tags are missing it is impossible to determine the spring rate by visual inspection.
'88: The rear springs are unique to the '88 Fiero. At least four spring rates were available. If springs are transferred from another Fiero they should be in pairs. The springs are identified by yellow tags. If the tags are missing it is impossible to determine the spring rate by visual inspection.
STEERING RACK & PINION
'84 - 87: The steering rack includes the inner tie rods as well as the rack and pinion. All '84-87 Fiero steering racks will interchange. However there were two steering ratios available. The "quicker" ratio was used in all '84 cars and in '85-87 cars equipped with the WS6 option. (See Option Codes at the front of this manual.) No other cars used the same steering rack as the Fiero.
'88: The steering rack includes the inner tie rods as well as the rack and pinion. No other cars, including earlier Fieros, used the same steering rack. There were two steering ratios available. The "quicker" ratio was used on the GT or if the RPO sticker indicates the car had the WS6 option. (See Option Codes at the front of this manual.) The '88 Fiero was intended to have power steering but this was dropped. No production Fiero ever had power steering.
STEERING WHEEL & COLUMN
'84-88: Steering wheels used in the Fiero were also used in many other late '80s GM cars except for the Fiero in the center horn button. Fiero steering wheels with horn "paddles" are identical to other GM cars of the same vintage.
The steering columns used in the Fiero are unique and not used in other cars; there are no known direct swaps. There were at least fourteen variations in '84-85 involving tilt, wiper options, and ignition switch variations. All year Fiero steering columns will fit any Fiero with the exception of these potential variations. Steering columns can be rebuilt or purchased outright at columnsgalore.com/rebuilt.htm.
Post by: GTRS Fiero on December 24, 2018, 06:44:46 pm
The sun visors in a Fiero typically look bad due to deterioration of the material beneath the outer fabric. An auto upholstery shop can repair these easily with new material. Typical cost is about $60 a pair. The sun visors can also be repaired with the same fabric used for headliners which can be purchased at fabric shops such as JoAnn Fabrics and Hancock Fabrics.
Replacement sun visors with lights that look nearly the same as the Fiero can be obtained from a '88-89 Chrysler LeBaron ('90 will work but is slightly different), and Dodge Shadow, Daytona, and Sundance. The power for lighted sun visors can be connected to the overhead interior lights. The sunvisors from these cars seem a bit sturdier than those from a Fiero. We are told that sun visors from late model S-series Chevrolet trucks will also work well in the Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:45:01 pm
THROTTLE BODY ASSEMBLY 2.5L
There is conflicting information about throttle bodies for the 2.5L Fiero. Some sources say that all GM 2.5L engines from '84-86 used the same throttle body. If you have a convenient salvage yard it is worth checking. We have not confirmed this and offer the information below from the "Hollander" manual:
'84 2.5L According to the Hollander manual, the throttle body in the '84 Fiero is unique - no equivalents. However Frank Catalano advised that the '82-84 Corvette, Camaro and Firebird equipped with the Crossfire injection system used the same TBI unit as the '84 Fiero. What's more, these throttle bodies can be bored and modified for increased horsepower. Boring service is available at crossfireinjection.net as of April 2010.
Throttle body assemblies from '85-88 Fieros will not fit the '84.
'85 2.5L Throttle bodies from the following will fit:
Chevy Blazer S10/GM Jimmy S15 '85 2.5L
S10/S15/GM Sonoma '85 2.5L
'86 2.5L This throttle body is unique to the Fiero. No equivalents. Throttle body assemblies from '84-85 or '87-88 Fieros will not fit the '86.
'87-88 2.5L Throttle bodies from the following will fit:
Buick Skylark '87 2.5L
Buick Somerset '87 2.5L
Olds Calais '87 2.5L
Pontiac Grand Am '87 2.5L
THROTTLE BODY ASSEMBLY 2.8L
'85-88: This throttle body assembly, made for GM by Holley, is unique to the Fiero. No equivalents. If the throttle body needs to be replaced, use one from a donor Fiero.
Post by: GTRS Fiero on December 24, 2018, 06:45:21 pm
TIMING COVER'84-88 2.5L
The timing cover for the 2.5L had two designs. One included two nuts welded on for front oil pan attachment. When using this timing cover, use the early design seal #3923440 and fill the bolt holes with RTV sealant. The following vehicles used the same timing cover:
Buick Century '82-90 2.5L
Buick Skylark '82-85 2.5L
Camaro '85-86 2.5L
Chevy Blazer S10/GM Jimmy S15 '85-88 2.5L
Chevy Celebrity '82-90 2.5L
Chevy Citation '82-85 2.5L
Chevy Lumina Car '90 2.5L
Firebird '82-86 2.5L
Olds Ciera '82-90 2.5L
Olds Omega '82-84 2.5L
Pontiac 6000 '84 2.5L
Pontiac Astro '85-90 2.5L
Pontiac Phoenix '82-84 2.5L
Pontiac Safari (GMC) '85-90 2.5L
Pontiac Ventura II '77 2.5L
S10/S15/GM Sonoma '82-93 2.5L
TIMING COVER'85-88 2.8L
'85-86 2.8L The timing cover for these engines is unique. Will not interchange with '87-88 Fiero.
'87-88 2.8L The timing cover for these engines is unique. Will not interchange with '85-86 Fiero.
HARMONIC BALANCER 2.5L
'84-86 2.5L: Harmonic balancer not used on these engines.
'87-88 2.5L: A harmonic balancer from the engines below will transfer:
Buick Century '87-91 2.5L
Chevy Celebrity '87-90 2.5L
Chevy Lumina Car '90-92 2.5L
Olds Ciera '87-92 2.5L
Pontiac 6000 '87-91 2.5L
HARMONIC BALANCER 2.8L
The harmonic balancer for the V-6 has been discontinued by GM but part number 14085401 will fit if the timing marks from the old harmonic balancer are transferred carefully to the new one. Don't try to use the timing marks from the new balancer; they are 60 degrees off!
'85-86 2.8L: The harmonic balancer for these engines is unique. Will not interchange with '87-88 Fiero.
'87-88 2.8L: The harmonic balancer for these engines is unique. Will not interchange with '85-86 Fiero.
Harmonic Balancer, Aftermarket: Some aftermarket balancers for the Fiero are shown below.
Harmonic Balancer, 2.5L, '87-88 Dorman 594-027
Harmonic Balancer, 2.8L, '85-87 Dorman 594-013
Harmonic Balancer, 2.8L, '88 Dorman 594-008
Post by: GTRS Fiero on December 24, 2018, 06:45:38 pm
'84-88 2.5L: The torque converter from the 2.5L engine is found in many other GM cars:
Buick Century '82-89 2.5L converter in '82 from late models only
Buick Skylark '82 2.5L lock-up, late models only
Buick Skylark '83 2.5L
Buick Skylark '83 2.8L VIN "Z"
Buick Skylark '84 2.5L
Buick Skylark '84 2.8L VIN "Z"
Buick Skylark '85 2.5L
Chevy Celebrity '82-84 2.5L converter in '82 from late models only
Chevy Celebrity '84 2.8L VIN "Z"
Chevy Celebrity '85-89 2.5L
Chevy Citation '82 2.5L lock-up, late models only
Chevy Citation '83 2.5L
Chevy Citation '83 2.8L VIN "Z"
Chevy Citation '84 2.5L
Chevy Citation '84 2.8L VIN "Z"
Chevy Citation '85 2.5L
Olds Ciera '82 2.5L only if trans. ID is PD or PW
Olds Ciera '83-89 2.5L
Olds Omega '82 2.5L lock-up, late models only
Olds Omega '83 2.5L
Olds Omega '83 2.8L VIN "Z"
Olds Omega '84 2.5L
Olds Omega '84 2.8L VIN "Z"
Pontiac 6000 '82-89 2.5L converter in '82 from late models only
Pontiac 6000 '83-84 2.8L VIN "Z"
Pontiac Phoenix '82 2.5L lock-up, late models only
Pontiac Phoenix '83 2.5L
Pontiac Phoenix '83 2.8L VIN "Z"
Pontiac Phoenix '84 2.5L
Pontiac Phoenix '84 2.8L VIN "Z"
'85 2.8L: The torque converter in the '85 was also used in the following cars:
Buick Century '87-89 2.8L use 3-speed only in '89
Buick Skylark '85 2.8L EFI
Buick Skylark '86-88 3.0L
Buick Somerset '85-87 3.0L
Cadillac Cimarron '85-86 2.8L
Cadillac Cimarron '87-88
Cavalier '85-91 six cylinder
Cavalier '92-93 3.1L
Chevrolet Beretta '92-93 3.1L transmission code LLC
Chevrolet Beretta '87-91 six cylinder
Chevy Celebrity '85-86 2.8L EFI
Chevy Celebrity '87-89 2.8L
Chevy Celebrity '90 3.1L
Chevy Citation '85 2.8L EFI
Chevy Corsica '87-91 six cylinder
Chevy Corsica '92-93 3.1L transmission identification LLC
Chevy Lumina Car '90 3.1L
Chevy Lumina Car '91-93 3.1L 3-speed only
Chevy Lumina Van '90-91 3-speed only
Chevy Lumina Van '92 3.1L 3-speed only
Olds Calais '85-88 3.0L
Olds Ciera '87-89 2.8L
Olds Cutlass '88-89 2.8L
Olds Cutlass '92-93 3.1L 3-speed only
Olds Firenza '85-87 2.8L
Olds Silhouette '90-91
Olds Silhouette '92 3.1L
Pontiac 6000 '85-89 2.8L in '85-86, converter only in EFI models
Pontiac 6000 '88-91 3.1L
Pontiac Grand Am '85-87 3.0L
Pontiac Grand Prix '92-93 3.1L 3-speed only
Pontiac Sunbird '91-93 3.0L
Pontiac Tempest '87-91 3.1L
Pontiac Tempest '92-93 3.1L transmission identification LLC
Pontiac Trans Sport '90-91
Pontiac Trans Sport '92 3.1L
'86 2.8L "CD": The '86 2.8L Fiero had two automatic transmissions, one identified as "CD" and one identified as "CP". The '86 CD transmission has the same replacements as the '85 2.8L Fiero.
'86 2.8L "CP": The '86 2.8L Fiero had two automatic transmissions, one identified as "CD" and one identified as "CP". The '86 CP transmission has the same replacements as the '87-88 2.8L Fiero.
'87-88 2.8L: The torque converter is unique to these Fieros and there are no other cars which use them. If a converter is needed try to get one from a donor Fiero or re-build the existing unit.
Although the '86-88 auto transmissions have unique torque converters, we suspect the '85 converter may interchange without problem. We have no information to confirm this. If such a swap is desired it should be discussed with a competent transmission supplier or remanufacturer.
Post by: GTRS Fiero on December 24, 2018, 06:45:56 pm
The Fiero automatic transmission is GM's TH-125C three-speed. Some variations exist depending on year and engine, so a swap with other Fieros should be done carefully.
'84: The cars below used TH-125 transmissions which will swap with the Fiero but they had transmission options other than automatic, so finding a transmission is not simply a matter of finding the correct vehicle.
Buick Century '82-83
Buick Skylark '82 2.5L lock-up converter
Buick Skylark '82 2.8L
Buick Skylark '83-84
Chevy Celebrity '82-84
Chevy Citation '82 2.5L lock-up converter
Chevy Citation '82 2.8L
Chevy Citation '83-84
Olds Ciera '82-84
Olds Omega '82 2.5L lock-up converter
Olds Omega '82 2.8L
Olds Omega '83-84
Pontiac 6000 '82-84 gasoline engine
Pontiac Phoenix '82 2.5L lock-up converter
Pontiac Phoenix '82 2.8L
Pontiac Phoenix '83-84
TH-125 transmissions from the cars below can be used in the '84 Fiero if the neutral switch is removed.
Buick Century '85-88
Buick Century '89 2.5L
Buick Century '89 2.8L
Buick Century '90-92 2.5L
Buick Century '93 2.2L
Buick Century '94-95
Buick Skylark '85
Chevy Celebrity '85-89
Chevy Citation '85
Chevy Lumina Van '90-95
Olds Cierra '85-88
Olds Cierra '89 2.5L
Olds Cierra '89 2.8L
Olds Cierra '90-93 four cylinder
Olds Cierra '94-95
Olds Silhouette '90-94
Pontiac 6000 '85-87
Pontiac 6000 '88-89 front wheel drive
Pontiac 6000 '90 2.5L front wheel drive
Pontiac 6000 '91 2.5L
Pontiac Trans Sport '90-95
TH-125 transmissions from the cars below can be used in the '84 Fiero by switching the lock-up wiring and switches. Remove the neutral switch if needed.
Buick Century '84-85 diesel
Buick Century '89-93 3.3L
Chevy Celebrity '84-85 diesel
Olds Ciera '84-85 diesel
Olds Ciera '89 3.3L
Olds Ciera '90-93 six cylinder
Pontiac 6000 '84-85 diesel
Pontiac 6000 '90 3.1L FWD
Pontiac 6000 '91 3.1L
TH-125 transmissions from the cars below can be used in the '84 Fiero by transferring the lock-up wiring and switches.
Buick Century '82-83 diesel
Chevy Celebrity '82-83 diesel
Olds Ciera '82-83 diesel
Pontiac 6000 '82-83 diesel
'85-87 TH-125 transmissions from the cars below can be used in the '85-87 Fiero.
Buick Century '85 gasoline
Buick Century '86-87
Buick Skylark '85
Chevy Celebrity '85 gasoline
Chevy Celebrity '86-87
Chevy Citation '85
Olds Ciera '85 gasoline
Olds Ciera '86-87
Pontiac 6000 '85 gasoline
Pontiac 6000 '86-87
TH-125 transmissions from the cars below can be used in the '85-87 Fiero by changing the neutral switch as needed.
Buick Century '88
Buick Century '89 2.5L
Buick Century '89 2.8L
Buick Century '90-92 2.5L
Buick Century '93 2.2L
Buick Century '94-95
Chevy Celebrity '88-90
Chevy Lumina Van '90-95
Olds Ciera '88
Olds Ciera '89 2.5L
Olds Ciera '89 2.8L
Olds Ciera '90-93 four cylinder
Olds Ciera '94-95
Olds Silhouette '90-94
Pontiac 6000 '88-89 front wheel drive
Pontiac 6000 '90 2.5L front wheel drive
Pontiac 6000 '91 2.5L
Pontiac Trans Sport '90-95
TH-125 transmissions from the cars below can be used in the '85-87 Fiero by switching the lock-up wiring and switches and by removing the neutral switch as needed.
Buick Century '82-85 diesel
Buick Century '89-93 3.3L
Chevy Celebrity '82-85 diesel
Olds Ciera '82-85 diesel
Olds Ciera '89 3.3L
Olds Ciera '90-93 six cylinder
Pontiac 6000 '82-85 diesel
Pontiac 6000 '90 3.1L FWD
Pontiac 6000 '91 3.1L
'88 TH-125 transmissions from the cars below can be used in the '88 Fiero.
Buick Century '88
Buick Century '89 2.5L
Buick Century '89 2.8L
Buick Century '90-92 2.5L
Buick Century '93 2.2L
Buick Century '94-95
Chevy Celebrity '88-90
Chevy Lumina Van '90-91
Chevy Lumina Van '92-95
Olds Ciera '88
Olds Ciera '89 2.5L & 2.8L
Olds Ciera '90-93 four cylinder
Olds Ciera '94-95
Olds Silhouette '90-91
Olds Silhouette '92-94
Pontiac 6000 '88-89 FWD
Pontiac 6000 '90 2.5L FWD
Pontiac 6000 '91 2.5L
Pontiac Trans Sport '90-95
TH-125 transmissions from the cars below can be used in the '88 Fiero by switching the torque converter lock-up wiring and switches.
Buick Century '89-93 3.3L
Olds Ciera '89 3.3L
Olds Ciera '90-93 six cylinder
Pontiac 6000 '90 3.1L FWD
Pontiac 6000 '91 3.1L
Alternative Automatic Transmissions
It is feasible to install newer-design automatic transmissions in a Fiero such as GM's TH440-T4. With some qualification this can result in better acceleration and improved mileage. A thorough discussion with directions to relative web sites can be found at The Ogre's Cave, http://home.comcast.net/~fierocave/aodproj.htm.
Post by: GTRS Fiero on December 24, 2018, 06:46:14 pm
Manual transmissions were offered for the Fiero in all production years. In 1984 only a four-speed transmission was offered but it came in two versions, one of which is referred to as the "Econo" model. The final gear ratio on this transmission was 3.32:1 to provide optimum mileage for the four-cylinder engine. Only a few thousand of these were offered. A 1984 Fiero containing the Econo four-speed will have "MY8" on the RPO (Regular Production Option) Code sticker located on the left front fender well. An "econo" transmission can be identified when out of the car by "NA" or "DJ" stamped on the bell housing. The other transmission which had a final ratio of 4.10:1 is identified by "UM" or "DW" stamped on the bell housing.
In 1985 the four-speed transmission was offered only on the V-6 engine. The four-cylinder engine came with a five-speed Isuzu.
In 1986 the four-speed was used on the V-6 until about mid-year when it was replaced by the five-speed Muncie 282 "Getrag". The five-speed Isuzu continued to be used with the four-cylinder engine. The latter two transmissions continued to be used on the V-6 and four-cylinder engines respectively in 1987-88, although some gearing changes occurred on the Isuzu. The Isuzu transmissions can be swapped in all '85-88 Fieros realizing that minor gearing changes may occur.
If you have doubts about which manual transmission is in your car, here is a link which should help: Manual Trans ID.
'84 4-speed: The following cars with four-speed manual transmissions will swap with the '84 Fiero:
Buick Skyhawk '82
Buick Skyhawk '83-84 4-speed w/o OHC
Buick Skylark '81 1.03" diameter cable holes
Buick Skylark '82-84
Cadillac Cimarron '82
Chevy Cavalier '82
Chevy Cavalier '83-84
Chevy Celebrity '84
Chevy Citation '81 1.03" diameter cable holes
Chevy Citation '82-84
Olds Firenza '82
Olds Firenza '83-84
Olds Omega '81 1.03" diameter cable holes
Olds Omega '82-84
Pontiac 2000 '82
Pontiac 2000 '83-84 4-speed w/o OHC
Pontiac Phoenix '81 1.03" diameter cable holes
Pontiac Phoenix '82-84
Four-speed transmissions from the cars below will fit the '84 Fiero if shift cables and shift cable mounting brackets are included. In some cases, the shift lever assembly may have to be included.
Buick Skylark '80
Buick Skylark '81 0.8125" diameter cable holes
Chevy Citation '80
Chevy Citation '81 0.8125" diameter cable holes
Olds Omega '80
Olds Omega '81 0.8125" diameter cable holes
Pontiac Phoenix '80
Pontiac Phoenix '81 0.8125" diameter cable holes
'85-86 2.5L, 5-speed Isuzu: This exact transmission is unique to the Fiero. However, five-speed transmissions from the cars below can be used if the shift arm is rotated 180 degrees.
Buick Skylark '86
Buick Somerset '85-86
Cadillac Cimarron '85-56 2.0L electronic speedometer
Chevy Cavalier '85-86 electronic speedometer
Olds Calais 85-86
Pontiac Grand Am '85-86
Five-speed transmissions from the cars below can be used on the '85-86 2.5L engine if the speed sensor is changed as well as the shift arm and/or speedometer cable. The shift arm must be rotated 180 degrees to fit.
Cavalier '85-86 cable drive speedometer
Cadillac Cimarron 85-86 2.0L cable drive speedometer
'87-88 2.5L, 5-speed Isuzu: This exact transmission is unique to the Fiero. However, five-speed transmissions from the cars below can be used if the shift arm is rotated 180 degrees.
Buick Skylark '87
Buick Somerset '87
Chevrolet Beretta '87-88 2.0L gear driven speed sensor
Chevrolet Beretta '89 2.0L trans code DAB or DHB, gear driven speed sensor
Chevy Cavalier '87-89 2.0L electronic speedometer
Chevy Corsica '87-88 2.0L gear driven speed sensor
Chevy Corsica '89 2.0L trans code DAB or DHB, gear driven speed sensor
Olds Calais '87
Olds Calais '88-89 2.5L
Pontiac Grand Am '87-89 2.5L
Pontiac Tempest '87-88 2.0L gear driven speed sensor
Pontiac Tempest '89 2.0L trans code DAB or DHB, gear driven speed sensor
Five-speed transmissions from the cars below can be used in the '87-88 four-cylinder Fiero by switching the speed sensor, shift arm and/or speedometer cable. The shift arm must be rotated 180 degrees.
Buick Skyhawk '88 w/o OHC
Buick Skyhawk '89
Chevy Cavalier '87-89 2.0L cable drive speedometer
Olds Firenza '88 w/o OHC
'85-86 2.8L 4-speed: Four-speed transmissions from the cars below will swap:
Cadillac Cimarron '85-86 2.8L electronic speedometer
Chevy Cavalier '85 2.0L bracket mtd. cables, electronic speedometer
Chevy Cavalier '85 2.8L electronic speedometer
Chevy Cavalier '86-87 electronic speedometer
Pontiac Sunbird '85 2.0L bracket mounted cables
Pontiac Sunbird '86 2.0L
Four-speed transmissions from the cars below will fit the '85-86 2.8L by changing the speed sensor and/or the speedometer cable.
Buick Skyhawk '85 w/o OHC, bracket mtd. cables
Buick Skyhawk '86 w/o OHC
Buick Skyhawk '87
Buick Skylark '85 bracket mounted cables
Cadillac Cimarron '85-86 2.8L cable drive speedometer
Chevy Cavalier '85 2.0L bracket mtd. cables, cable drive speedometer
Chevy Cavalier '85 2.8L cable drive speedometer
Chevy Cavalier '86-87 cable drive speedometer
Chevy Celebrity '85 bracket mounted cable
Chevy Celebrity '86
Chevy Citation '85 bracket mounted cables
Olds Firenza '85 bracket mounted cables
Olds Firenza '86-87
'86-88 2.8L 5-speed "Getrag": This exact transmission is unique to the Fiero. According to the Hollander manual, five-speed transmissions from the cars below can be used if the shift arm is rotated 180 degrees. However Rodney Dickman (rodneydickman.com) advises this information is incorrect. Rodney makes a hardware kit which will allow these transmissions to be used with the Fiero. Transmissions which will work are:
Cadillac Cimarron '87-88 gear driven speed sensor
Chevrolet Beretta '87-89 2.8L gear driven speed sensor
Chevy Cavalier '87 2.8L five speed, w/electronic speedometer
Chevy Cavalier '88-89 2.8L electronic speedometer
Chevy Celebrity '87-88 gear driven speed sensor
Chevy Corsica '87-89 2.8L gear driven speed sensor
Pontiac 6000 '87-88 gear driven speed sensor
Pontiac Tempest '87-89 2.8L gear driven speed sensor
Five-speed Getrag transmissions from the cars below can be used in the '86-88 2.8L 5-speed Fiero by switching the speed sensor, shift arm, and/or speedometer cable. The shift arm must use the Rodney Dickman kit to work.
Cadillac Cimarron '87-88 cable drive speedometer
Chevy Cavalier '87 2.8L five speed w/cable drive speedometer
Chevy Cavalier '88-89 2.8L cable drive speedometer
Olds Firenza '87 2.8L five speed
Other 1987-94 GM cars (Pontiac Grand Prix, Pontiac Grand Am, etc.) used a similar Getrag 5-speed transmission but the linkage system for the slave cylinder and release arm is different than the Fiero. On these transmissions the release arm is inside the transmission and the slave cylinder mounts to the bell housing. Rodney Dickman offers an adapter that allows this version of the Getrag 5-speed to be used in the Fiero.
"Shift" and "Select" cables for Fiero manual transmissions can be obtained from California Push-Pull (push-pull.com) and rodneydickman.com.
Post by: GTRS Fiero on December 24, 2018, 06:46:34 pm
The turn signal stalk on the Fiero varied with certain options such as windshield wiper controls and cruise control. Equivalent stalks were used on many GM cars of the same era. OEM replacements with delay wipers and cruise are still available under part number 25111290, although they are flat black instead of shiny. Aftermarket units are also available, typically in the "Help" brand of parts. The "Help!" brand P/N 49286 turn signal stalk listed for the '88 Fiero is better quality than for earlier years and will fit all Fieros, so use the one listed for the '88 if available.
A turn signal cam (a part that's inside the steering column and wears out with age) listed for all Fieros is Help! 49303.
Post by: GTRS Fiero on December 24, 2018, 06:46:50 pm
Water pumps for all model Fieros are readily available at parts stores. The water pump in the V-6 should NOT be replaced with a pump having a plastic impeller. If the engine overheats, the plastic impeller will spin on its shaft and thereafter fail to pump sufficient coolant. This leads to chronic overheating and possible damage. Replacement pumps should have metal impellers only. Metal impellers should also be the "closed" type such that you can see the vanes only from the side. It will look much like a vented brake rotor.
Replacement pumps which have worked well in the V6 are TRW/Carter PN# FP1843 and Pronto WP 281 (may be labeled Part # 18-205 or WP-561). You can see the vanes in these pumps only from the side. The impeller should not be the "open" type where you can see exposed vanes. Whatever pump you choose, be certain to verify the impeller is metal.
Post by: GTRS Fiero on December 24, 2018, 06:47:05 pm
Most Fiero wheels have a plastic cap in the center of the wheel. Some '86-87 models have a Fiero emblem on the cap. The '84, '85 and '88s are blank. Identical blank caps can be found on late '80s Pontiacs. The Fiero logo decal can be added to the blank caps if desired. Blank caps are still available from GM but of course they are pricey. (Center cap decals available at fierosails.com.)
Post by: GTRS Fiero on December 24, 2018, 06:47:20 pm
Power window motors in the Fiero are the same from like years of Firebirds and Camaros and many GM cars of the late '80s and early '90s. Finding good motors in salvage yard should be easy. Motors are still available from GM but are pricey. Salvaged motors from the rear doors in 4-door GM cars are generally in excellent condition.
Power window and power mirror switches are exactly the same in some years of Firebirds and Camaros. Since all these electrical items are the same, so are the connectors.
Manually powered window cranks, called "regulators", can be purchased new from auto parts stores carrying the Help! brand of small parts and accessories. The regulator for all Fieros is Help! 76903.
Post by: GTRS Fiero on December 24, 2018, 06:47:35 pm
The "wing" or spoiler on the Fiero is unique and was not used on any other vehicle. New replacements are available from JC Whitney and the Fiero Store. Used Fiero spoilers appear frequently on eBay. Spoilers from other vehicles can be made to fit the Fiero and some will have a brake light installed in them, such as those from the '86 Firebird.
The Formula and Indy were the only models that had a wing as standard equipment. (Actually Formula and Indy were an option group on a coupe; the wing was standard equipment within that option group.) Wings were optional on GTs and SEs. The wing in 1988 was slightly different on the underside than in 1984-87, but all factory wings interchange.
Fiero wings used to be a highly desired theft target and many that were stolen were replaced with aftermarket units. Used wings were very scarce and although the original production option price was under $300, Pontiac had replacements priced at nearly $1000.
All factory wings had two separate stands (called stantions) that screwed to the underside of the wing. The stantions and the gaskets which mount between the stantion and deck lid are different depending on the year and model as follows:
- The '84 Indy and '85 GT have the same stantions. The stantions mount to the deck lid with studs which thread into the base of the stantion. For '84-85, the stantion had a narrow fixed "spread" between studs. This stud spacing will not fit existing deck lid holes in '86-88 deck lids. However you can drill different holes to make them fit or you can get a "clean" deck lid and drill new holes.
- The '86-88 wings came with stantions with dual locations for the studs so the stantions will work with all years.
- The stantion gasket on the notchback body style (any Fiero other than '86-88 GTs) is identical for left and right sides and can be used on either stantion. The fastback gasket is not identical and there is a left and right. The difference is slight and you can force-fit an "incorrect" gasket with a bit of heat from a heat gun (used moderately). The difference in the GT gaskets is most easily discerned by the taper in the edge where the gasket meets the character line in the fastback decklid.
(Our thanks to Ed Parks and Mark Corbin for the above info.)
We understand but cannot confirm that wings from other vehicles will work on the Fiero and provide a "look" that you may find more appealing than the stock version. Vehicles which have wings known to work include the following:
Plymouth Duster
Plymoutn Sundance
Pontiac Firebird
Z34 (requires grinding the stantions)
We apologize that we do not know which years to look for on the above cars.
Post by: GTRS Fiero on December 24, 2018, 06:47:51 pm
Wiper motors in the Fiero differed depending on the "intermittent" or "pulse" action.
'84: Accoring to the Hollander manual, the'84 Fiero did not have a pulse wiper. However Jim Teague, the original owner of an unmodified '84 Fiero, advises that his car has an intermittent wiper motor. So it appears at least some '84 Fieros came from the factory with the upgraded motors. In any case, the cars below had wiper motors which can swap with the '84 Fiero:
Blazer/S10/GM Jimmy S15 '83-84
Blazer/S10/GM Jimmy S15 '83-93 without pulse wiper
Buick Skyhawk '82-83
Buick Skyhawk '84-89 without pulse wiper
Cadillac Cimarron '82-83
Chevy Cavalier '82-83
Chevy Cavalier '82-94 without pulse wiper
Olds Firenza '82-83
Olds Firenza '84-88 without pulse wiper
Pontiac 2000 '82-83
Pontiac 2000 '84 without pulse wiper
Pontiac Astro '85-89 without pulse wiper
Pontiac Safari (GMC) '85-89 without pulse wiper
Pontiac Sunbird ' 85-94 without pulse wiper
S10/S15/GM Sonoma '82-84
S10/S15/GM Sonoma '85-93 without pulse wiper
'85-88: with pulse wiper. Those without pulse wiper had the same motor as '84.
Buick Skyhawk '84-89 with pulse wiper
Cadillac Cimarron '84-88
Blazer S10/GM Jimmy S15 '85-93 with pulse wiper
Blazer S10/GM Jimmy S15 '94
Chevy Cavalier '84-94 with pulse wiper
GM Syclone '91
GM Typhoon '92-93
Olds Bravada '91-94
Olds Firenza '84-88 with pulse wiper
Pontiac 2000 '84 with pulse wiper
Pontiac Astro '85-89 with pulse wiper
Pontiac Astro '90-93
Pontiac Safari (GMC) '85-89 with pulse wiper
Pontiac Safari (GMC) '90-93
Pontiac Sunbird '85-94 with pulse wiper
S10/S15/GM Sonoma '85-93 with pulse wiper
'84-88: If you transfer the wiper circuit board in your Fiero to another motor, you can use wiper motors from any of the cars below in a Fiero:
Buick Skyhawk 1.8L '84-86
Buick Skyhawk 2.0L '84-89
Cadillac Cimarron 2.0L '84-86
Cadillac Cimarron 2.8L '85-87
Chevrolet Astro Truck 2.5L '85-90
Chevrolet Atro Truck 4.3L '85-93
Chevrolet Cavalier 2.0L '84-89
Chevrolet Cavalier 2.2L/3.1L '90-94
Chevrolet Cavalier 2.8L '85-89
Chevrolet S10 2.5L/2.8L '85-93
Chevrolet S10 4.3L '88-94
Chevrolet S10 Blazer 1.9L '84-85
Chevrolet S10 Blazer 2.5L '85-88
Chevrolet S10 Blazer 2.8L '85-90
Chevrolet S10 Blazer 4.3L '88-93
GMC S15 1.9L/2.2L '85
GMC S15 2.5L/2.8L '85-90
GMC S15 4.3L '88-90
GMC S15 Jimmy 2.5L '85-88
GMC S15 Jimmy 2.8L '85-89
GMC S15 Jimmy 4.3L '88-93
GMC S15 Sonoma '94
GMC S15 Sonoma 2.5L2.8L/4.3L '91-93
GMC S15 Syclone 4.3L '91
GMC S15 Typhoon 4.3L '92-93
GMC Safari '93
GMC Safari 2.5L '85-90
GMC Safari 4.3L '85-92
Oldsmobile Bravada 4.3L '91-94
Oldsmobile Firenza 1.8L '84-86
Oldsmobile Firenza 2.0L '84-88
Oldsmobile Firenza 2.8L '85-87
Pontiac J2000 1.8L/2.0L '84
Pontiac Sunbird 1.8L '86
Pontiac Sunbird 2.0L '85-94
Pontiac Sunbird 3.1L '91-94
Post by: GTRS Fiero on March 17, 2019, 10:14:59 pm
The Fiero automatic transmission is GM's TH-125C three-speed. Some variations exist depending on year and engine, so a swap with other Fieros should be done carefully.
'84: The cars below used TH-125 transmissions which will swap with the Fiero but they had transmission options other than automatic, so finding a transmission is not simply a matter of finding the correct vehicle.
Buick Century '82-83
Buick Skylark '82 2.5L lock-up converter
Buick Skylark '82 2.8L
Buick Skylark '83-84
Chevy Celebrity '82-84
Chevy Citation '82 2.5L lock-up converter
Chevy Citation '82 2.8L
Chevy Citation '83-84
Olds Ciera '82-84
Olds Omega '82 2.5L lock-up converter
Olds Omega '82 2.8L
Olds Omega '83-84
Pontiac 6000 '82-84 gasoline engine
Pontiac Phoenix '82 2.5L lock-up converter
Pontiac Phoenix '82 2.8L
Pontiac Phoenix '83-84
TH-125 transmissions from the cars below can be used in the '84 Fiero if the neutral switch is removed.
Buick Century '85-88
Buick Century '89 2.5L
Buick Century '89 2.8L
Buick Century '90-92 2.5L
Buick Century '93 2.2L
Buick Century '94-95
Buick Skylark '85
Chevy Celebrity '85-89
Chevy Citation '85
Chevy Lumina Van '90-95
Olds Cierra '85-88
Olds Cierra '89 2.5L
Olds Cierra '89 2.8L
Olds Cierra '90-93 four cylinder
Olds Cierra '94-95
Olds Silhouette '90-94
Pontiac 6000 '85-87
Pontiac 6000 '88-89 front wheel drive
Pontiac 6000 '90 2.5L front wheel drive
Pontiac 6000 '91 2.5L
Pontiac Trans Sport '90-95
TH-125 transmissions from the cars below can be used in the '84 Fiero by switching the lock-up wiring and switches. Remove the neutral switch if needed.
Buick Century '84-85 diesel
Buick Century '89-93 3.3L
Chevy Celebrity '84-85 diesel
Olds Ciera '84-85 diesel
Olds Ciera '89 3.3L
Olds Ciera '90-93 six cylinder
Pontiac 6000 '84-85 diesel
Pontiac 6000 '90 3.1L FWD
Pontiac 6000 '91 3.1L
TH-125 transmissions from the cars below can be used in the '84 Fiero by transferring the lock-up wiring and switches.
Buick Century '82-83 diesel
Chevy Celebrity '82-83 diesel
Olds Ciera '82-83 diesel
Pontiac 6000 '82-83 diesel
'85-87 TH-125 transmissions from the cars below can be used in the '85-87 Fiero.
Buick Century '85 gasoline
Buick Century '86-87
Buick Skylark '85
Chevy Celebrity '85 gasoline
Chevy Celebrity '86-87
Chevy Citation '85
Olds Ciera '85 gasoline
Olds Ciera '86-87
Pontiac 6000 '85 gasoline
Pontiac 6000 '86-87
TH-125 transmissions from the cars below can be used in the '85-87 Fiero by changing the neutral switch as needed.
Buick Century '88
Buick Century '89 2.5L
Buick Century '89 2.8L
Buick Century '90-92 2.5L
Buick Century '93 2.2L
Buick Century '94-95
Chevy Celebrity '88-90
Chevy Lumina Van '90-95
Olds Ciera '88
Olds Ciera '89 2.5L
Olds Ciera '89 2.8L
Olds Ciera '90-93 four cylinder
Olds Ciera '94-95
Olds Silhouette '90-94
Pontiac 6000 '88-89 front wheel drive
Pontiac 6000 '90 2.5L front wheel drive
Pontiac 6000 '91 2.5L
Pontiac Trans Sport '90-95
TH-125 transmissions from the cars below can be used in the '85-87 Fiero by switching the lock-up wiring and switches and by removing the neutral switch as needed.
Buick Century '82-85 diesel
Buick Century '89-93 3.3L
Chevy Celebrity '82-85 diesel
Olds Ciera '82-85 diesel
Olds Ciera '89 3.3L
Olds Ciera '90-93 six cylinder
Pontiac 6000 '82-85 diesel
Pontiac 6000 '90 3.1L FWD
Pontiac 6000 '91 3.1L
'88 TH-125 transmissions from the cars below can be used in the '88 Fiero.
Buick Century '88
Buick Century '89 2.5L
Buick Century '89 2.8L
Buick Century '90-92 2.5L
Buick Century '93 2.2L
Buick Century '94-95
Chevy Celebrity '88-90
Chevy Lumina Van '90-91
Chevy Lumina Van '92-95
Olds Ciera '88
Olds Ciera '89 2.5L & 2.8L
Olds Ciera '90-93 four cylinder
Olds Ciera '94-95
Olds Silhouette '90-91
Olds Silhouette '92-94
Pontiac 6000 '88-89 FWD
Pontiac 6000 '90 2.5L FWD
Pontiac 6000 '91 2.5L
Pontiac Trans Sport '90-95
TH-125 transmissions from the cars below can be used in the '88 Fiero by switching the torque converter lock-up wiring and switches.
Buick Century '89-93 3.3L
Olds Ciera '89 3.3L
Olds Ciera '90-93 six cylinder
Pontiac 6000 '90 3.1L FWD
Pontiac 6000 '91 3.1L
Alternative Automatic Transmissions
It is feasible to install newer-design automatic transmissions in a Fiero such as GM's TH440-T4. With some qualification this can result in better acceleration and improved mileage. A thorough discussion with directions to relative web sites can be found at The Ogre's Cave.