1986 GMC C2500 Service and Repair Manual
This factory service and repair manual for the 1986 GMC C2500 covers four bodies, the standard cab pickup, the extended cab pickup, the crew cab pickup and the cab and chassis, in Base, High Sierra and Sierra Classic trim. Six engines are documented: the 4.3L V6, the 4.8L inline-six, the 5.0L, 5.7L and 7.4L gasoline V8s and the 6.2L diesel V8. Body and interior procedures differ from one cab to the next, while the engine, driveline and chassis sections are common to all of them.
Engines covered
- 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
- 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
- 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
- 4.8L inline-six (292 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
- 2-door extended cab pickup
- 4-door crew cab pickup
- 2-door standard cab pickup
- 2-door cab & chassis
Trims covered
- Base
- High Sierra
- Sierra Classic
Known issues on the 1986 C2500. A clean federal record follows this model year: NHTSA holds no recalls against it and no owner complaints. The manual therefore stands on its coverage, which has to reach from the 4.3L V6 and the 4.8L inline-six through three gasoline V8s to the 6.2L diesel, and from a bare cab and chassis to a crew cab pickup. Procedures, specifications, torque values, wiring diagrams and diagnostics are given system by system for all of them.
CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. TH
THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN A FIRE.
HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 20
