Table 1 shows two common engine and engine cooling related problems of the 2017 GMC Sierra 2500. The number one most common problem is related to the engine and engine cooling (four problems). The second most common problem is related to the engine exhaust system (one problem).
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems | |
| Engine Exhaust System problems |
The contact owns a 2017 GMC Sierra 2500 denali. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed with a failure of the #8 glow plug. Read details...
My 2017 GMC 2500 sierra denali duramax has had this throttle issue, it seems to only do it when the exhaust stinks, and at speeds between 5 - 55 mph. If I take my foot off the accelerator the truck maintains rpm (1200 - 1400) or even has increased some and has lasted 2 - 5 seconds (estimated and Read details...