One problem related to other fuel system tank assembly has been reported for the 2014 GMC Sierra 3500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 GMC Sierra 3500 based on all problems reported for the 2014 Sierra 3500.
Got a recall on December 15, 2017 about the second gas tank issue. Advised not to fill the second tank because it cause the front tank to expand, rub the drive shaft, and cause a leak and possible fire. They said that they would notify when parts are available. Have not heard anything back yet. It has been 2 months. We travel long distances with this truck and need the added fuel from the second tank. Thank you.
| Other Fuel System Tank Assembly problems | |
| Other Fuel System problems |