1983 GMC General Service and Repair Manual
This factory service and repair manual for the 1983 GMC General is organized around a diesel-only engine list: the 7.0L inline-six (426 cu in), the 9.0L V6 (552 cu in), the 9.3L V8 (568 cu in), the 12.1L V8 (736 cu in) and the turbocharged 14.0L and 14.6L inline-sixes, together with one entry given without specification. The truck is covered as a straight truck or a tractor in medium and long conventional forms, under five build codes. Procedures, specifications, torque values, wiring diagrams and diagnostics are set out system by system.
Engines covered
- 14.0L inline-six (855 cu in) — turbocharged, diesel
- 9.3L V8 (568 cu in) — diesel
- 14.6L inline-six (893 cu in) — turbocharged, diesel
- 9.0L V6 (552 cu in) — diesel
- 12.1L V8 (736 cu in) — diesel
- 7.0L inline-six (426 cu in) — diesel
Body styles covered
- Straight truck, long conventional
- Tractor truck, medium conventional
- Tractor truck, long conventional
- Straight truck, medium conventional
Trims covered
- N9E042
- N9E064
- N9F020 Gliders - Long Conventional
- N9F042
- N9F064
Known issues on the 1983 General. No recalls appear on the federal record for the 1983 General and no owner complaints are logged with NHTSA, so the record is clean. That leaves the manual doing what a heavy truck book does, which is to keep six named diesels straight in one volume, each with its own specifications, service procedures and torque values, and to back them with wiring diagrams and diagnostics for the electrical circuits shared across the straight-truck and tractor variants.
