This factory service and repair manual for the 1986 GMC C5000 documents both of the year's gasoline engines — the naturally aspirated 5.7L V8 of 350 cubic inches and the naturally aspirated 4.8L overhead-valve inline-six of 292 cubic inches — along with the one body style and one trim the model was sold in. That configuration is the 2-door conventional cab and chassis under trim code C5D042. With the lineup this tight, the procedures, specifications, torque values, wiring diagrams and diagnostics apply cleanly to any truck of the year.
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 1986 C5000. No recalls and no owner complaints appear on the federal record for the 1986 C5000, so there is no campaign history to chase and no pattern of reported failures to pre-empt. The manual's value here is procedural. It gives engine specifications and service procedures for the 350 V8 and the 292 inline-six, torque values for the fasteners that hold the chassis and driveline together, and the wiring diagrams and diagnostic charts needed to trace an electrical fault back to its source.
