1987–1988 GMC GMT-400
Common problems, technical service bulletins, fluid specs and labor times — verified for your car.
Top Problems (5)
Faulty Fuel Pump
high
Electrical Issues
medium
Active Service Bulletins
99-09-41-004 — Air Bag (SIR) On-Off Switch Kits, New Parts and Service
Restraints and Safety Systems
99-05-24-001 (S — Brakes - Lead/Pull & Front Brake Wear
Brakes and Traction Control
66-83-04 (S — Odometer/Speedometer - ACDelco Service Center Locations
Technical Service Bulletins
63-12-08 (S — A/C - Tool And Equipment Maintenance
Heating and Air Conditioning
Track this GMC GMT-400 for free — personalized TSBs, maintenance reminders, and JoeBot AI answers for your exact car.
Get Ordo Free →