1986 GMC G1500 Service and Repair Manual
This factory service and repair manual for the 1986 GMC G1500 is one book for four vans: standard and extended cargo bodies and standard and extended passenger bodies, badged Vandura on the working versions and Rally or Rally STX on the passenger ones. Three engines are covered, the 4.3L OHV V6 and the 5.0L and 5.7L OHV V8s, each naturally aspirated. The engine chapters keep their specifications apart while the driveline, suspension, brake, heating and circuit chapters serve the whole family of bodies.
Engines covered
- 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
- 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 3-door standard cargo van
- 3-door extended passenger van
- 3-door standard passenger van
- 3-door extended cargo van
Trims covered
- Rally
- Rally STX
- Vandura
Known issues on the 1986 G1500. No recalls and no owner complaints are recorded for the 1986 G1500. That puts the weight on the manual's routine content, which is considerable: overhaul procedures with bearing and ring clearances for all three engines, torque sequences for cylinder heads, manifolds and main bearings, transmission and axle service, steering and suspension repair with alignment figures, hydraulic brake rebuilding, and body circuit diagnosis backed by wiring diagrams that cover the cargo and passenger builds separately.
