One problem related to tank filler pipe and cap has been reported for the 2001 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 GMC Sierra 1500 based on all problems reported for the 2001 Sierra 1500.
Gas tank filler neck leaking fuel.
| Tank Assembly problems | |
| Gasoline Fuel System problems | |
| Fuel Hoses Lines/piping And Fittings problems | |
| Tank Filler Pipe And Cap problems | |
| Tank Mounting problems | |
| Fuel Pump problems |