Table 1 shows three common gasoline fuel system related problems of the 2003 GMC Sierra.
| Problem Category | Number of Problems |
|---|---|
| Fuel Injector problems | |
| Tank Filler Pipe And Cap problems | |
| Gasoline Fuel System problems |
2003 GMC Sierra duramax 3 injectors failed and replaced under warranty @ 25,000 miles 8 injectors failed and replaced @ 35,000 miles and replaced under warranty 4 injectors failed @ 120,000 and no warranty coverage obviously there is an injector problem.
Dt: the consumer owns a 2003 GMC Sierra. The consumer stated he has been having problems with the fuel gauge, fuel pump, and fuel filter. The fuel gauge does not work, he has to constantly fill up his truck to make sure he has enough gas. It started at 38000 miles just out of warranty when it stopped working. He had the part estimated by a mechanic and it is going to cost around 700 dollars just for the part. He does know of other people with the same truck and the same type of problem. The fuel gauge reads completely wrong when he is on 3 quarters of a tank it will be empty.
Failed component 1: driving at slow speed, reduced power light energized and engines goes to idle speed with no fuel pedal response. Failed component #2: exhaust manifold bolts in cylinder heads broken on both sides of engine, passenger exhaust manifold cracked, exhaust is loud with exhaust fumes in cab. Depending on what is causing the fuel system failure and whether the cylinder heads have to be removed to remove the broken bolts, these repairs could cost thousands.