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1997 GMC 3500 Pickup Question: Is battery or altenator faulty if battery light on and voltmeter at 1/4th dial?

 

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J.H.Will, 5.7L V8, Rockford, IL, April 27, 2011, 18:40
 Rookie

warning light went on and meter indicated discharge when I started ignition.

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  • Answer #1

    DaveJHM April 27, 2011, 21:03
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     Master

    I wouldn't pay too much attention to the voltmeter, but a battery light indicates a charging system failure.

    Make sure the battery is fully charged and then test the charging system. Chances are the alternator has failed.

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