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Author Topic: 3.4 swap runs but sputters smooths out then dies smells very rich  (Read 30251 times)

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Sandman87

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3.4 swap runs but sputters smooths out then dies smells very rich
« on: March 08, 2020, 06:04:43 pm »
got it running but ideling very high any thoughts . ive been checking for vac leaks

could bad injector o rings cause this
« Last Edit: March 16, 2020, 09:08:47 pm by Sandman87 »
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Mike

GTRS Fiero

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Re: ro 3.4 swap runs bit 2000k idel ??
« Reply #1 on: March 08, 2020, 06:07:50 pm »
Look in the July 2019 newsletter.  It covers much of this.

The tach filter is suspect for the tach filter.  EGR for the idle.

Any codes set?
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Sandman87

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Re: ro 3.4 swap runs bit 2000k idel ??
« Reply #2 on: March 08, 2020, 06:10:09 pm »
no codes ,i plugged the egr metal vac tube no change
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Mike

Sandman87

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Re: 3.4 swap runs but 2000k idle ??
« Reply #3 on: March 08, 2020, 06:12:04 pm »
could  my timing need adjusted ? at the dizzy ?
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Mike

Fierofool

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Re: 3.4 swap runs but 2000k idle ??
« Reply #4 on: March 08, 2020, 06:45:24 pm »
You could still have a vacuum leak in the EGR valve or its vacuum line.  Also check the 2 vacuum lines that plug onto the bottom of the throttle body.  Did you plug the EGR tube at the intake or at the valve? 
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Sandman87

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Re: 3.4 swap runs but 2000k idle ??
« Reply #5 on: March 08, 2020, 06:53:27 pm »
Everything seems to be connected up under throttle body and under the intake plenum. I disconnected the EGR tube from the EGR valve itself and plugged it up.
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Mike

Sandman87

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Re: 3.4 swap runs but 2000k idle ??
« Reply #6 on: March 08, 2020, 06:54:48 pm »
now it's not wanting to start at all unless I throw a little starting fluid in there and then it will quickly die out again.I think this may be because I'm not getting enough vacuum to open the fuel pressure regulator?at the fuel check valve on the fuel rail when I push in the needle I get a good squirt of fuel and I can hear the fuel pump running.
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Mike

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Re: ro 3.4 swap runs bit 2000k idel ??
« Reply #7 on: March 08, 2020, 06:57:28 pm »
Quote from: Sandman87 on March 08, 2020, 06:05:23 pm
what is a tac filter ?

The tachometer filter sits by the ignition coil, and is supposed to keep the needle steady.
« Last Edit: March 08, 2020, 09:12:19 pm by GTRS Fiero »
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Sandman87

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Re: 3.4 swap runs but 2000k idle ??
« Reply #8 on: March 08, 2020, 06:57:59 pm »
I have a video of it running I don't know if I'm able to attach videos to any comments on here but I can hear a vacuum leak if I can find out how to post it maybe that will help
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Mike

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Re: 3.4 swap runs but 2000k idle ??
« Reply #9 on: March 08, 2020, 06:59:11 pm »
What did you do since it started last?
« Last Edit: March 08, 2020, 09:12:40 pm by GTRS Fiero »
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GTRS Fiero

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Re: 3.4 swap runs but 2000k idle ??
« Reply #10 on: March 08, 2020, 07:00:53 pm »
Quote from: Sandman87 on March 08, 2020, 06:53:27 pm
I disconnected the EGR tube from the EGR valve itself and plugged it up.

Did you plug both the valve and the tube?

The tube could be leaking at the intake.
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Sandman87

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Re: 3.4 swap runs but 2000k idle ??
« Reply #11 on: March 08, 2020, 07:02:53 pm »
I plugged the metal tube and I plugged the little black vacuum line on the top of the EGR valve.
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Mike

Sandman87

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Re: 3.4 swap runs but 2000k idle ??
« Reply #12 on: March 08, 2020, 07:03:39 pm »
In the video I took I can hear a vacuum leak unless it's just coming from the throttle body.
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Mike

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Re: 3.4 swap runs but 2000k idle ??
« Reply #13 on: March 08, 2020, 07:05:05 pm »
Quote from: Sandman87 on March 08, 2020, 07:02:53 pm
I plugged the metal tube and I plugged the little black vacuum line on the top of the EGR valve.

It could still be leaking at the intake.  Use a 3-foot length of garden hose to find the leak.
« Last Edit: March 08, 2020, 09:13:25 pm by GTRS Fiero »
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Sandman87

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Re: 3.4 swap runs but 2000k idle ??
« Reply #14 on: March 08, 2020, 07:06:17 pm »
I had the car running looking for vacuum leaks and it just died out. To answer your question a few post back
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Mike
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