Duramax Fourth Generation: 2007.5-2010 (LMM)
I have an 08 6.6 duramax. The truck runs like a wild banshee, until it doesn't. Pulling a trailer or not, occasionally if you get on it going uphill, it'll go into reduced engine power mode. You can pull over, turn the truck off, wait a few minutes, restart & it'll reset itself. This truck has...