Question about 1995 GMC Sierra C1500

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Idiot light for the battery came on the dash, voltage reading on gauge down in the red zone...is it the battery or alternator?

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Most likely it is the alternator since the guage shows the power the alternator is adding to the system. TO verify, start the vehicle and remove the negative battery terminal. If the vehicle dies it's your alternator, if it continues to run it's your battery.

Posted on Oct 07, 2009

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Your alternator has failed,Please do not drive it will leave you stranded and be careful.I hope this helps you?

Posted on Oct 07, 2009

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Most likely, it's the alternator or the alternator belt.

Posted on Oct 07, 2009

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