GMC Sierra owners have reported 89 gasoline fuel system related problems since 1996. Table 1 shows the 10 most common gasoline fuel system problems. The number one most common problem is related to the vehicle's fuel pump (23 problems). The second most common problem is related to the vehicle's gasoline fuel system (15 problems). For details of each of the problem category, use the links in the table.
The contact owns 2015 GMC Sierra 1500. The contact stated that while driving on several occasions at various speeds, the vehicle lost motive power. The contact stated that the check engine warning light was illuminated for approximately a month. Read details...
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 Read details...
Vehicle sporadically starts. Dealer advised needed a new fuel pump, filter. Independant shop stated there was a service bulletin for this problem. Independant flushed injectors and replaced hose that was melting from gas as per bulletin. Truck ran great for a week and then problem began again. Read details...
The lower half of the rear gas tank strap has rotted out and dislodged from the upper half of the strap. The front strap also has visible corrosion. A very serious situation. I was very fortunate to find the lower half of the strap, as I was moving firewood on my property. Read details...
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. Read details...