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Originally Posted by Dartgod
So much for fishing anytime soon. My truck had a battery drain issue that I thought was fixed. Nope, the ****er was stone dead Wednesday afternoon I put a good charge on it and its dead again this morning. My wife and I had planned to head down to Truman early this morning.
So back into the shop it goes for the 4th time..
SAUTO, you have any thoughts on a Silverado 2500HD 4x4 6.0L? I've put two new batteries in it and the dealer has replaced a fuse block on the passenger side and updated the firmware on the HVAC module that has been known to cause this issue. I pulled the OnStar fuse this last time because I was told those systems have been known to cause issues.
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man, could the alternator be staying engaged? try unhooking it and seeing if the battery still dies. what year is it?