This factory service and repair manual for the 1985 GMC C5000 was written for a truck with a short spec sheet and a long working life. Two engines are covered, both gasoline and both naturally aspirated: the 350-cubic-inch 5.7L V8 and the 292-cubic-inch 4.8L overhead-valve inline-six. Body style choice comes down to one, the 2-door conventional cab and chassis, and trim choice to one code, C5D042. Coverage runs system by system through procedures, specifications, torque values, wiring diagrams and diagnostics.
Engines covered
- 5.7L V8 (350 cu in) — naturally aspirated, gasoline
- 4.8L inline-six (292 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door cab & chassis, conventional
Trims covered
- C5D042
Known issues on the 1985 C5000. Owners of the 1985 C5000 have a quiet federal record to work with — no recalls and no owner complaints are held by NHTSA for the year. The reading that pays off, then, is preventive. Torque values and specifications for the 5.7L V8 and the 4.8L inline-six, service procedures for the conventional cab and chassis, and the wiring diagrams and diagnostic sequences that go with them are all here, laid out by system rather than by symptom.
