Question about 2001 Chevrolet Suburban

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01 Suburban battery draining

We are having trouble with something draining the battery. I have to jump it to get it started but the battery would go dead (sitting or running). I was told from the dealer I bought it from that it was just the ctsy lamps draining it cuz they didn't always turn off. I fixed that by replacing the relay for the ctsy lamps. However this didn't fix my problem. I seems to be draining the battery running or not and why won't the new battery charge?when it is running it shows it is charging 14 volts but when it is off (not running) It shows no voltage on the gauge We put a new battery in and also replaced the alternator. any suggestions?

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Take it to an autosparky ......They will check to see if there is a drain on the battery.
cheapest and fastest option.

Posted on Jun 26, 2009

  • George Jun 26, 2009

    If you have a multimeter you can disconnect the negative lead on the battery , Set the multimeter to amps then connect one of the leads to the negative on the battery and the other to the negavtive lead.
    Look at the multimeter and see what it reads , this will show if you have a drain and also how many amps the drain is drawing.Do Not Try Starting The Engine as it will fry your meter and leads!!!!!!!
    Have you fitted a stereo , amp or someother third party device ?
    Check your negative(earth)connections.
    Might not be the battery ......could be a lazy starter motor .
    Let me know how you get on...



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