1985 GMC S15 Service and Repair Manual
This factory service and repair manual for the 1985 GMC S15 documents a four-engine year: a 2.8L overhead-valve V6, a 1.9L single-overhead-cam inline-four, a 2.5L overhead-valve inline-four of 151 cubic inches, and a 2.2L inline-four diesel of 134 cubic inches. Extended cab, standard cab and cab and chassis bodies are listed, all two-door, in Base, High Sierra and Sierra Classic trim. With four engines in one compact chassis, the engine sections carry most of the detail, each with its own procedures, specifications, torque values, wiring diagrams and diagnostics.
Engines covered
- 2.8L V6 (173 cu in) — OHV, naturally aspirated, gasoline
- 1.9L inline-four (119 cu in) — SOHC, naturally aspirated, gasoline
- 2.5L inline-four (151 cu in) — OHV, naturally aspirated, gasoline
- 2.2L inline-four (134 cu in) — OHV, naturally aspirated, diesel
Body styles covered
- 2-door extended cab pickup
- 2-door standard cab pickup
- 2-door cab & chassis
Trims covered
- Base
- High Sierra
- Sierra Classic
Known issues on the 1985 S15. One recall is on the federal record, and it covers replacement lamp assemblies sold for these trucks that were built without the amber side reflectors federal lighting rules require, leaving the truck harder for other drivers to pick out from the side at night. A single owner complaint is also recorded, concerning the seats. Lighting is the system worth reading up on here, and the manual carries wiring diagrams, circuit diagnostics and component procedures for the exterior lamps, plus the specifications and torque values for the seat and body hardware.
CERTAIN CK MOTORSPORTS COMBINATION HEADLIGHTS, CLEAR CORNER, BUMPER, AND SIDE MARKER LIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON THE PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE N
WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICL
CK MOTORSPORT WILL NOTIFY OWNERS AND REPLACE THE NONCOMPLIANT LAMPS FREE OF CHARGE. THE RECALL BEGA
SEE KODIAK ALASKA POLICE DEPT. RPT./CASE#199606691 KODIAK, ALASKA 99615. BECAUSE A SEAT MOUNT FAILED THE DRIVER RECEIVED PERMANENT-COSTLY FULLY DISABLING INJURIES. AMONG MV DAMAGE THE VEHICLE SEAT BRA
