1986 GMC Jimmy Service and Repair Manual

This factory service and repair manual for the 1986 GMC Jimmy covers a 2-door sport utility built in Base, Sierra Classic and Silverado trim. The engine bay could hold the 5.0L gasoline V8, the 6.2L diesel V8 or the 5.7L gasoline V8, each overhead-valve and naturally aspirated, and separate specifications and torque values are carried for all three. Wiring diagrams, diagnostic charts and repair procedures follow the same system-by-system arrangement, running from engine mechanical through the driveline and chassis to the body and interior.

Engines covered

• 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
• 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
• 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 2-door sport utility

Trims covered

• Base
• Sierra Classic
• Silverado

Known issues on the 1986 Jimmy. A single recall is on the federal record for this model year, covering replacement lamps that lack amber side reflectors and therefore leave the truck badly lit from the side. Three owner complaints are logged with NHTSA, one each for the engine and engine cooling, the service brakes and visibility. Cooling system pressure and thermostat specifications, brake hydraulic overhaul with its torque figures, and the lighting and wiper circuits in the wiring diagrams are the parts of this manual those three entries touch.