1985 Chevrolet C70 Service and Repair Manual
1985 Chevrolet C70 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
- C7D064 Straight Truck - Medium Conventional
- C7D044 Cab & Chassis - Conventional 2-Door
- C7D064 Straight Truck - Low Tilt
- C7D042 Cab & Chassis - Conventional 2-Door
Engines covered
- 6.0L 366Cu. In. V8 GAS OHV Naturally Aspirated
- 7.0L 427Cu. In. V8 GAS Naturally Aspirated
- 6.1L 374Cu. In. l6 DIESEL Turbocharged
- 8.2L 501Cu. In. V8 DIESEL Turbocharged
- 10.4L 636Cu. In. V8 DIESEL Turbocharged
- 10.4L 636Cu. In. V8 DIESEL Naturally Aspirated
- 8.2L 501Cu. In. V8 DIESEL 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
STEERING CONTROL ARM CAN BE OVERSTRESSED WITH HEAVY STEERING INPUT CAUSING IT TO CRACK AND IT COULD EVENTUALLY BREAK COMPLETELY.
INSTALL NEW STEERING ARM AND OTHER STEERING SYSTEM HARDWARE WHICH WILL PREVENT OVERSTRES
THE POWER STEERING ASSIST CYLINDER MOUNTING BRACKET BOLTS MAY LOOSEN DUE TO PAINT ON THE BOLT THREADS AND THE MOUNTING BRACKET MATING SURFACE.
REMOVE PAINT FROM MATING SURFACES OF BRACKET AND FRAME RAIL; REPLACE POWER STEERING ASSIS
THE PARKING BRAKE ACTUATING LEVER CAM MAY CONTAIN A QUENCH CRACK WHICH CAN WIDEN, REDUCING THE HOLDING CAPABILITY OF THE PARKING BRAKES.
INSTALL A NEW ACTUATION LEVER.
