Loose pivot bolt holding the brake pedal to its support bracket could disengage from the nut.
1976-1990 · 6 model years
GMC K20 Problems by year
Owners have filed 0 complaints about the GMC K20 across 6 model years, and it has 6 recalls.
- Complaints
- 0
- Recalls
- 6
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
K20 complaints by model year
Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.
GMC K20 recalls 6
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.
The rear axle shafts received improper heat treatment during manufacture. The shaft may break and the tire and wheel assembly could disengage from the vehicle.
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 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...
Questions about the GMC K20
How many recalls does the GMC K20 have?
NHTSA lists 6 recalls across all GMC K20 model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data