GMC C7500, TopKick C6500, C5500, C4500, Suburban, LML, 3500

GMC Truck

GMC is the division of General Motors that manufactures trucks and utility vehicles.

GMC Trucks Problems
  • DPF/Emissions on LML, GMC 3500 trucks.
  • Inaccurate fuel gauge reading, gauge indicates fuel in the tank.
  • A loose or worn gas cap may cause check engine light to illuminate.
  • Internal faults in distributor can cause engine problems in GMC Suburban 1500.
  • Topkick trucks equipped with Caterpillar C9 Diesel Engines recalled due to a possible crack in the fuel pump outlet check plug that could lead the fuel to spray and leak. Fuel leakage, in the presence of an ignition source, can result in a fire.