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Well..............Quite a few hours later and with some help form a mechanic friend of mine, I am a little closer to finding the Problem. He suggested pulling the Negative Cable and running a test light between the battery and the cable end. With this "tester" in place the test light will stay lit until the fuse with the problem circuit is pulled. An hour or two later I have found that in order for the light to completely go out I needed to pull 8 fuses. Some of which I attribute to the battery "sleep" functions on this vehicle. The problem being that I cannot check all the fuses with the door closed as one of the main fuse panels is beneath the drivers side rear seat.

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12y ago
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Q: How do you fix a battery draw on a 2003 GMC ENVOY?
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