2002 Chevy Silverado Electrical Draw

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Electrical problem
2002 Chevy Silverado V8 Four Wheel Drive Automatic 123000 miles

I have a 2002 2500hd with the Duramax engine. Three mornings ago when I tried to start it there was not enough power to start the engine. It has a duel battery system. It will hold enough charge to start the vehicle for roughly 5-7 hours but not much past that. I did a load test on both batteries and both test good. I noticed what I thought was an excessive amount of spark when re-connecting the battery cables. I did pull the trailer wiring fuses and re-tested to see if that was the cause. Before I spend to much time chasing the draw, do you have a good starting point.

Do you
have the same problem?
Thursday, February 28th, 2008 AT 1:03 PM

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