1985 GMC General Service and Repair Manual
This factory service and repair manual for the 1985 GMC General is broad in body terms, taking in straight trucks and tractors in medium conventional, long conventional and low tilt forms. Seven diesels are listed, from the 7.0L inline-six of 426 cubic inches and the 9.0L V6 and 9.3L V8 through the 12.1L V8 to the turbocharged 10.0L, 14.0L and 14.6L inline-sixes. Six build codes are covered, with procedures, specifications, torque values, wiring diagrams and diagnostics for each system.
Engines covered
- 14.0L inline-six (855 cu in) — turbocharged, diesel
- 12.1L V8 (736 cu in) — diesel
- 9.0L V6 (552 cu in) — diesel
- 9.3L V8 (568 cu in) — diesel
- 14.6L inline-six (893 cu in) — turbocharged, diesel
- 10.0L inline-six (611 cu in) — turbocharged, diesel
- 7.0L inline-six (426 cu in) — diesel
Body styles covered
- Straight truck, long conventional
- Straight truck, medium conventional
- Tractor truck, low tilt
- Tractor truck, long conventional
- Tractor truck, medium conventional
- Straight truck, low tilt
Trims covered
- N9E020 Gliders - Medium Conventional
- N9E042
- N9E064
- N9F020 Gliders - Long Conventional
- N9F042
- N9F064
Known issues on the 1985 General. The 1985 General carries a clean federal record, with no recalls and no owner complaints registered at NHTSA. With seven diesels spanning 7.0L to 14.6L, the manual has plenty to do regardless: specifications and service procedures for each engine, torque values for the chassis, axles and driveline, wiring diagrams for the cab electrical circuits, and diagnostics organized by system so the same book works on a low tilt tractor and a long conventional straight truck alike.
A CLAMP PINCH BOLT SECURING THE UPPER STEERING SHAFT TO THE LOWER STEERING SHAFT MAY LOOSEN.
REPLACE THE CLAMP ASSEMBLY AND UPPER STEERING SHAFT.
