2007 Tahoe Z71 Battery Dying Overnight
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Joined: Dec 2017
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2007 Tahoe Z71 Battery Dying Overnight
Have a 2007 Tahoe Z71 that keeps dying overnight. Have already replaced the battery and checked for a draw and have found none. I had an aftermarket radio and amp and unplugged the amp and car ran fine for two weeks before it began dying again. Just recently replaced the fuse box to eliminate a relay issue and that did not work. Any other ideas on what to do? There are no lights being left on at night, etc.
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Joined: Jul 2011
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From: kevinkpk
You have to check individual circuits. With a voltmeter, pull fuse's till you see the voltage stop. I had a 2010 Silverado that would do the same thing. I could drive it 600 miles one day, and the battery be dead the next morning, or let it set 2 weeks, and start right up.