Table 1 shows one common engine and engine cooling related problems of the 2012 GMC Sierra 2500.
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems |
Truck is a diesel. Fuel pump blew up and died in the middle of the street. Now I'm being told the fuel system needs completely re done and will cost me 10g. I also found a lawsuit for this issue as well.
While traveling on the interstate at speed and passing slower traffic; engine power fell off, change fuel filter now, engine derate, and check engine lite, occured. I had to maneuver with no power through the traffic to get out of the travel lanes. I was then stranded on the interstate as the truck would not start. I was able to get a mechanic to come and change the fuel filter on the side of the highway, but the truck would not start. The truck was eventually towed to a shop where it was diagnosed with a catastrophic failure of the fuel pump (diesel motor driven pump).
Emissions failure. Nox sensor, def system. Driving, display states, poor def quality. Took in for repair, still def quality. Truck has slowed to 55mph, will slow to 4 mph in 39 miles. They are trowing parts at it at my expense. Can't properly diagnose. This problem is from 2010- current models of these diesels.