Thread: 02 SE Major Electric Problem

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  1. #1 02 SE Major Electric Problem 
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    My 02 Grand Prix SE developed a very major short at the alternator, which burnt an inch or so of the power wire going into it, and nearly melted the bolt in half to which it was attached. I cut the damaged wire off and installed a new terminal on the end of it.

    When I first went to start the car after replacing the alternator, the engine wouldn't start. I waited five minutes and tried again, this time the engine started right up. However, the third time I got in the car to drive it, I turned my key, the starter clicked once, and all of my interior and dash lights went dead (and the engine wouldn't start).

    The battery was recently tested, and is only a year old. My grounds at the battery and starter are good. All of my fuses also are good.

    When I ground my battery charger directly to the battery, the meter on the charger bounced all over going from dead to fully charged and back. When I ground the charger to the vehicle frame, it showed a full charge on the battery.

    Could a fusible link be my problem? If so, how do I find them, how do I test them, and are they difficult to replace?

    I love cars, but my mechanical skills are limited. Changing out the alternator was probably the limit of my abilities. If you have ideas, I would appreciate them in as much detail and laymans terms as possible.

    Thank you, I really appreciate it!
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  2. #2 Re: 02 SE Major Electric Problem 
    GTX Level Member imdaman3's Avatar
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    deffinatly sounds like a short to ur stater and yes there are fusible links ther that can be expossed causing a short
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  3. #3 Re: 02 SE Major Electric Problem 
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    Sounds good. Where are the fusible links on the 3100 engine?
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  4. #4 Re: 02 SE Major Electric Problem 
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    them come off the little 12ga wires off the starter
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  5. #5 Re: 02 SE Major Electric Problem 
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    Hey guys,
    I took my battery out again and had it re-tested. This time, the CCA were good, but the voltage was gone. The parts shop gave me a loaner battery to try out in my car, and on that battery, it fired right up.

    However, my serpentine belt doesn't want to move. This is the original belt that was on the car before I changed it out, as it was replaced a few months ago. My first guess is my auto tensioner has gone bad. I know my routing is perfect. Any other ideas?
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  6. #6 Re: 02 SE Major Electric Problem 
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    take belt off and turn each pully wich ever 1 dont turn thats your problem
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  7. #7 Re: 02 SE Major Electric Problem 
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    Got her running!

    New tensioner and belt did the trick. My theory is that as the tensioner went bad, it also caused strain on the alternator which in turn strained the battery. The battery likely developed an internal short, causing the short on the alternator.

    Thanks for the help everyone!
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  8. #8 Re: 02 SE Major Electric Problem 
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    no problem good luck
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