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GTRS Fiero

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Battery won't stay charged
« on: March 07, 2018, 09:35:29 PM »
Posted for oldone:
all right I give up my 86 gt keeps running the battery down. nothing left on, I charge it up the next day I unplug the charger and the next day its dead?  help

GTRS Fiero

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Re: Battery won't stay charged
« Reply #1 on: March 07, 2018, 09:37:09 PM »
I would suggest that you connect your multi-meter inline between the battery and the negative terminal, set the multi-meter to AMPs, then see what the meter shows.  You can pull fuses one by one, until there is a change.  When there is a change, you've found your culprit.
« Last Edit: March 07, 2018, 09:48:23 PM by GTRS Fiero »

Fierofool

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Re: Battery won't stay charged
« Reply #2 on: March 07, 2018, 09:43:22 PM »
When you finish charging, feel your headlight motors to see if they're hot. 
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Fierofool

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Re: Battery won't stay charged
« Reply #3 on: March 08, 2018, 01:30:44 PM »
If your headlights motors aren't hot, unplug the oil pressure sending unit and let the car sit overnight.  They can short out and because they have constant 12V to them, they can drain the battery quickly.  Happened to my 86. 
I went to a prayer meeting and a ball game broke out.

Raydar

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Re: Battery won't stay charged
« Reply #4 on: March 08, 2018, 01:40:02 PM »
...unplug the oil pressure sending unit and let the car sit overnight.  They can short out and because they have constant 12V to them, they can drain the battery quickly.  Happened to my 86.

Same thing happened to mine. And it was a brand new sending unit.
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oldone

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Re: Battery won't stay charged
« Reply #5 on: March 08, 2018, 05:06:19 PM »
its to cold out right now. maybe when it gets warmer I can check it out.
the world is a sh t sandwich and everyday is another little bite

Fierofool

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Re: Battery won't stay charged
« Reply #6 on: March 17, 2018, 10:27:42 PM »
Dewey, did you get a chance to check the headlight motors or unplug the oil pressure sending unit? 
I went to a prayer meeting and a ball game broke out.

oldone

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Re: Battery won't stay charged
« Reply #7 on: March 19, 2018, 09:11:34 PM »
all I`ve done is charge the battery and then let it sit a couple days and then hook up the car again and it started right up. not the battery. Charlie I don`t know where the oil sending unit is.
the world is a sh t sandwich and everyday is another little bite

GTRS Fiero

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Re: Battery won't stay charged
« Reply #8 on: March 19, 2018, 09:20:32 PM »
Does this help?


oldone

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Re: Battery won't stay charged
« Reply #9 on: March 20, 2018, 09:06:16 PM »
thanks
the world is a sh t sandwich and everyday is another little bite