1991 GMC V3500 Service and Repair Manual
This factory service and repair manual for the 1991 GMC V3500 covers the final year of the crew cab one-ton in Base and SLE trim, with the 7.4L gasoline V8, the 6.2L V8 diesel and the 5.7L gasoline V8 as its listed engines, all naturally aspirated overhead-valve designs. Parts and documentation for these trucks have long since thinned out, which is precisely why the original figures matter: what the clearance was, what the fastener torques to, and how the circuit was drawn when it left the factory.
Engines covered
- 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
- 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 4-door crew cab pickup
Trims covered
- Base
- SLE
Known issues on the 1991 V3500. The federal record is clean for this model year, with no recalls and no owner complaints logged with NHTSA. On a truck now decades into service, the meaningful issues are those of accumulated wear, and the manual meets them head on with engine mechanical and fuel procedures for all three power plants, four-wheel-drive and brake service, published specifications and torque values, and wiring diagrams tied to the diagnostic steps that use them.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
