Question about 2004 Chevrolet Avalanche

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Battery will not hold a charge.

My 2002 Chevy Avalanche is starting but will not charge the battery. Battery is good and alternator has been replaced.

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  • menumate Dec 03, 2008

    It will not charge while vehicle is running

  • menumate Dec 04, 2008

    When vehicle running the voltage is 9 or below. will not run with battery disconnected

  • yadayada
    yadayada May 11, 2010

    THEN EITHER THE ALTERNATOR IS DEFECTIVE OR THE WIRING TO IT IS DEFECTIVE, WHAT IS THE VOLTAGE AT THE ALT WHEN THE ENGINE IS RUNNING?? IS THE BATTERY LIGHT ON IN THE DASH??

  • yadayada
    yadayada May 11, 2010

    Even if the alternator was just installed is it working? Go to any Kragen and they will test it for free, also have them test the battery.

  • Steve
    Steve May 11, 2010

    Why do you think the battery will not hod a charge?

  • Anonymous Mar 28, 2014

    I have replace alternator and battery it still shows that battery is not charging.

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I don't know how you figured out that your battery was good, but if it drops to 9 volts I highly suspect that it is bad. You need to have it load tested. This will tell if it is bad under load.
Also if it is bad it can cause the alternator not to work even if the alternator is brand new.

Posted on Dec 04, 2008

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Check the big fuse for the alternator in the fuse box under the hood

Posted on Dec 04, 2008

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