Jeff D

Just went today to my GMC dealership that sold me my 2015 Sierra last month for this chirping issue. They told me there is a new exhaust system for the 2015’s that will solve this flapper problem. Being under warranty still I will have it replaced within the next few weeks. I also told them there seems to be more vibration in the pedals while in motion than my 2004 model made. They told me the new suspensions are tighter and that there is more vibration felt in the newer models. So it seems newer isn’t always better in all aspects.