1985 Chevrolet K20 Suburban Service and Repair Manual
This factory service and repair manual for the 1985 Chevrolet K20 Suburban has four V8s in it and nothing smaller: 5.0L, 5.7L and 7.4L gasoline units of 305, 350 and 454 cubic inches, and a 6.2L diesel of 379, all overhead-valve and naturally aspirated. They go into a single four-door sport utility body sold as a Custom, a Scottsdale or a Silverado. The gap between the smallest and the largest is wide enough that cooling, fuel and driveline specifications are stated separately for each.
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
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 4-door sport utility
Trims covered
- Custom
- Scottsdale
- Silverado
Known issues on the 1985 K20 Suburban. One recall is on the federal record for this year, and it concerns a replacement oil filter whose seal can fail, letting the engine lose its oil, with fire the consequence named. The only owner complaint on record concerns the tires. Since neither reaches into the vehicle's own systems, the manual's usefulness is in its regular coverage: lubrication and oil pressure specifications for all four V8s, torque values throughout, wheel and tire data, and diagnostic charts for the brakes, steering, suspension and driveline.
