I have a 2008 2500HD w/ 6.0 and 6 speed auto. It sometimes feels like it downshifts when I'm sitting at a stop light. The first time it happened, I thought somebody ran in to the rear of my truck. Has anyone else noticed this, and is it anything to be concerned about?
It has 3,070 miles on it.
It has 3,070 miles on it.
