1993 GMC C2500
289,000 MILES
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ANONYMOUS
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  • 1 POST
batts dead over night. new alt batts test good. disconnect alt batts stay charged. now what?????
Dec 15, 2012 at 11:07 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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ASEMASTER6371
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you need to insert a amp meter in line with negative cable. remove the fuses till the reading goes to 0. then you know what circuit has the draw. trace it down to the failed part.

Roy
Dec 15, 2012 at 11:10 PM
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