Thread: 1989 Grand Prix electrical issues

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  1. #1 1989 Grand Prix electrical issues 
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    So i was given a grand prix in almost perfect condition...just some wiring work.

    I had it parked for about a month, and in that time I guess some mice must have gotten into the wiring because it won't start now.

    Turning the key only turns things on if I have a battery charger on. Without it there is no electricity in the system, even though the battery is good.

    when I try to start it, the fans come on and stay on, and the starter repeatedly clicks instead of just clicking once.

    Does anyone know where I should look for the wiring damage?
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  2. #2 Re: 1989 Grand Prix electrical issues 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Still kinda sounds like a junk/dead battery though.

    You could try jumping the starter aswell to see if it will turn over.

    Otherwise you are checking fuses and power to certains things and trace wires.

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  3. #3 Re: 1989 Grand Prix electrical issues 
    GXP Level Member Turbocharged400sbc's Avatar
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    corrosion at the battery terminals, the lead inserts in the battery side posts can be broken off and still look intact. but usually corrosion between the terminal and battery/bolt as well as at the strands
    ~James~ Psychotic Gearhead
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  4. #4 Re: 1989 Grand Prix electrical issues 
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    Check the voltage with a meter, then turn the ignition switch to run (not start) and see how much the voltage starts. I have had batteries that show 12.7V but we're so bad when you connected even a meter the voltage would drop to 4-5V. Cleaning the battery terminals is a great idea as well I can't tell you how many times I have seen terminals that look perfect but there's no actual connection between the terminal and battery.
    An engine is an engine no matter the size.... I think Dr. Seuss said that... or maybe it was Big Weld....
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