1985 Chevrolet C20 Service and Repair Manual

This factory service and repair manual for the 1985 Chevrolet C20 lists six engines for three body configurations, which is a great many combinations to keep straight. A 4.3L V6 of 262 cubic inches and a 4.8L inline-six of 292 sit below the 5.0L, 5.7L and 7.4L gasoline V8s, and a 6.2L diesel V8 of 379 cubic inches stands apart from all of them. The bodies are a two-door standard cab pickup, a four-door crew cab pickup and a two-door cab and chassis, in Custom, Scottsdale or Silverado trim.

Engines covered

• 5.0L V8 (305 cu in) — OHV, naturally aspirated, gasoline
• 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
• 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
• 4.8L inline-six (292 cu in) — OHV, naturally aspirated, gasoline
• 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline
• 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 2-door standard cab pickup
• 4-door crew cab pickup
• 2-door cab & chassis

Trims covered

• Custom
• Scottsdale
• Silverado

Known issues on the 1985 C20. The federal record holds one recall, and it applies to a replacement oil filter rather than to anything installed at the factory: the seal can be inadequate, engine oil can escape and a fire can follow. Two owner complaints, both about tires, are the only others on record. Rather than a fault history, this manual gives the working numbers — oil pressure and lubrication specifications, wheel and tire fitting torque, and the full set of engine, driveline, brake, steering and electrical procedures for every configuration listed.