1986 Chevrolet C15 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- Cheyenne Standard Cab Pickup 2-Door
- Custom Standard Cab Pickup 2-Door
Engines covered
- 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
- 4.1L 250Cu. In. l6 GAS OHV Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
THE PUSH PULL HEADLIGHT SWITCH MAY HAVE ELECTRICAL CONTACTS WHICH ALLOW AN INTERMITTENT HEADLIGHT CIRCUIT CAUSING HEADLIGHT TO FLICKER OR SUDDENLY GO OUT.
REPLACE HEADLIGHT SWITCH AS NECESSARY.
DUAL GAS TANKS ARE LEAKING ,THE OTHER ONE IS RUSTED DUE TO MUD BUILD UP. TOOK TRUCK TO NAPA, AND CONSUMER WAS TOLD THAT THOSE TANKS ARE NOW OBSOLETE, AND THAT THE CONSUMER WOULD H
DUAL GAS TANKS ARE LEAKING. THE OTHER ONE IS RUSTED FROM MUD BUILD UP. CONSUMER TOOK CAR TO NAPA, AND THEY SAID THAT THE TANK WAS OBSOLETE AND WOULD HAVE TO PUCHASE ONE USED.
FUEL PROBLEMS. *AK
ONE OF THE DUAL TANKS WAS LEAKING. THIS COULD CAUSE A FIRE. *AK
Showing the 4 most serious of 5 complaints filed with NHTSA.
