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Thread: over night battery dies

  1. #1
    Registered User echocluster's Avatar
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    Default over night battery dies

    when i turn off car the charge light on dash stays on. my battery is dead in the mourning . battery is good. any ideas
    jason

    1971 240z
    108 hp at 5056 rpms at the wheels

  2. #2
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    Default

    short in alternator
    1976 280Z, with some minor modifications

  3. #3
    Walmart greeter Mikes Z car's Avatar
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    The diodes can short on the alternator. The diode pack can be replaced but I don't know if that is often done nor if you have to take the alternator apart to replace them.

  4. #4

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    Find a good shop that can rebuild your alternator.
    76 280Z

  5. #5
    No more body roll! SteveJ's Avatar
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    A bad voltage regulator can cause this to happen, as well.
    73 240Z
    74 260Z

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  6. #6
    Registered User Oiluj's Avatar
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    Look for a voltage leak or lamp that doesn't go out. Look at your glove box and the engine bay light to make sure they are off.

    My glove box light switch had been pushed back and didn't go out. Over a couple days, battery was too low to start. Bent the mount back out, and no more problem...
    Julio
    1972 240Z (in-progress, 95% complete)
    CZC# 15388

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