Several times while driving my 2021 LM2 diesel truck I've experienced a loud bang inside the truck and feels like it's either the transmission shifting on the engine, not sure. The last time it happened my wife said did you hit or run over something. Anyone else experiencing this problem? Just...
I recently had the check engine light come on and after a road trip of 100 miles at an average speed of 50 miles per hour the check engine light went out the next morning. I have around 25,000 miles on the odometer after 3-1/2 years of ownership and will take it in to the dealership to...
Thanks for the reply, however mine has never done it and started about a week ago. Wondering if the diesel fuel has something to do it so will buy another tank at another station. Have also read that the injectors might be a problem. If I'd had the noise since new I wouldn't be as concerned...
My 2021 GMC Denali has approximately 18,000 miles on it and the engine is making a rattling sound under light acceleration. This just started has anyone else experienced this issue? This sounds like pre-ignition in a gasoline engine.
I agree on being the smoothest powertrain on the market and can't believe Ram and Ford both discontinued the diesel option in their light duty trucks. I hope GM keeps offering the diesel in their light duty trucks and SUVs. Diesel prices have dropped in Missouri and it is now only about 20...
Several weeks ago I noticed diesel fuel below my fuel tank on the garage floor and looked underneath and could see where it appears to have ran down from around or above the fuel tank. Took it to the dealership and was told there is a valve in the fuel filler hose that has to be replaced and...
I was watching a TFL Talk youtube video doing a walk around at the Detroit auto show and noticed that a GMC truck with a Multi-Pro Tailgate has a black plastic overlay on the upper half of the tailgate. Has anyone seen this before? I'm curious where I could buy this overlay on the tailgate to...