Table 1 shows six common engine and engine cooling related problems of the 2005 GMC Sierra 2500. The number one most common problem is related to the engine exhaust system (six problems). The second most common problem is related to the manifold/header/muffler/tail pipe (three problems).
Exhaust manafold bolts are breaking off for no apparent reason. I have four broken already and an exhaust leak developing. This appears to be a defect in manufacturing. I have a friend with two of the same trucks that the same thing has happened to. There are numerous complaints posted on the web. Read details...
2005 GMC 2500hd with 6. 0 liter gas motor. Left and right bank exhast manifold to engine bolts broken off in head. Leaking exhast fumes and causing my check engine light to come on. Gm need to have a recall on this due to the number of vehicles out there with this problem. Read details...
The contact owns a 2005 GMC Sierra 2500 hd. The contact stated that when he drives his vehicle uphill with a trailer in tow, the vehicle slams into third gear, jerks, and overheats. The failure occurs at various speeds. The failure mileage was 35,000. Read details...