I have 2005 gmc 2500hd w/vortec v8. original problem was dash and running lights staying on. Then after sitting a couple months it would not try to crank. figured it was a ground problem, cleaned every one I could find inside, under and under the hood. No change. Replaced Key switch, ignition switch, neutral ss and starter. one at a time, for various reasons. Nothing changed. I borrowed a 3140b scanner and it wouldn't "establish a link". Borrowed a bcm and pcm. tried each and both and still no communication or crank. any help?

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Asked by Jul 31, 2017 at 02:06 PM about the 2005 GMC Sierra 2500HD 2 Dr Work Truck 4WD Standard Cab LB HD

Question type: Maintenance & Repair

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