1991 Chevrolet C70 Kodiak Service and Repair Manual

This factory service and repair manual for the 1991 Chevrolet C70 Kodiak is built around a two-door conventional cab and chassis offered under two codes, C7H042 and C7H064. The engine list is short and clearly split: a naturally aspirated 7.0L overhead-valve gasoline V8 of 427 cubic inches, a turbocharged 6.6L overhead-valve inline-six diesel, and a naturally aspirated 6.0L overhead-valve gasoline V8 of 366 cubic inches. Chassis, brake and electrical procedures are common to all three.

Engines covered

• 7.0L V8 (427 cu in) — OHV, naturally aspirated, gasoline
• 6.6L inline-six (403 cu in) — OHV, turbocharged, diesel
• 6.0L V8 (366 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 2-door cab & chassis, conventional

Trims covered

• C7H042
• C7H064

Known issues on the 1991 C70 Kodiak. A truck this simple on paper is not simple to repair without specifications, and the manual supplies them: clearances and torque values for each engine, fuel and cooling procedures written per engine, transmission and axle service, brake adjustment and overhaul specifications, steering measurements, and wiring diagrams with the diagnostic sequences that read them.