GMC Sierra 1500 owners have reported 1 problem related to other fuel system hoses lines/piping, and fittings (under the other fuel system category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Sierra 1500 based on all problems reported for the Sierra 1500.
While driving during winter conditions with temperature at 3 degrees on a residential street with limited traffic, the diesel fuel in the fuel filter gelled up which caused the vehicle to display reduce power mode and then immediately shut off and would not start. The vehicle coasted to a stop in the middle of the street while in traffic. The owners manual lists utilizing top tier diesel which I did. While additives are not normally needed in most states to fuel for freezing conditions evidently they are needed in oklahoma. The fuel filter housing is the only place where the fuel gelled up, which appears to be a theme in most GMC diesel trucks and does not effect fuel in the fuel tank due to volume. GMC has done nothing to improve the design or increase insulation to the thin fuel filter housing. If I had been in fast traffic on the interstate it would have resulted in an accident and possible loss of life.
See
all problems of the 2021 GMC Sierra 1500
🔎.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems | |
| Other Fuel System Tank Assembly problems | |
| Other Fuel System Pump problems | |
| Other Fuel System Fuel Gauge problems | |
| Gas Tank Strap problems | |
| Other Fuel System Fuel Injection System problems | |
| Other Fuel System Hoses Lines/piping, And Fittings problems | |
| Other Fuel System Tank Mounting problems |