GMC K30 Problems by year

Loose pivot bolt holding the brake pedal to its support bracket could disengage from the nut.

On c and k models, feed and or return fuel lines can contact the automatic transmission shift linkage cordon shaft. In addition, on k models lines may also contact front propshaft. In either case the fuel lines could be damaged resulting in a fuel leak.

Vehicles may have been assembled without the roof marker lamps required for trucks of 80 or more inches overall width. Vehicles do not conform to federal motor vehicle safety standard 108, "lamps, reflective devices and associated equipment".

Fatigue cracks may develop in the brake vacuum booster housing. This may cause a vacuum leak and reduce the effectiveness of the brakes. After prolonged use, the cracks may develop to the extent that the booster may separate from the vehicle.

On the involved vehicles the brake stoplight and cruise control switch which is operated by the brake pedal may have been assembled with an incorrect lubricant on the actuating plunger. This can cause the rear brake stoplights to become inoperative and the...

The existing certification labels contain incorrect rim size information. This is a non-compliance to federal motor vehicle safety standard no. 120, "Tire selection and rims for vehicles other than passenger cars". The existing labels specify the use of...

The accelerator pedal rod in combination with the pedal installed on the involved vehicles may cut through the floor pan rubber mat or carpet into the thick resilient insulation pad underneath during heavy or repeated full throttle applications. As a result...