1990 Chevrolet R1500 Suburban Service and Repair Manual
This factory service and repair manual for the 1990 Chevrolet R1500 Suburban is written around two power units and two trim levels. The engines are a 6.2L 379-cubic-inch diesel V8 and a 5.7L 350-cubic-inch gasoline V8, both with pushrod valvetrains and neither turbocharged; the trims are Scottsdale and Silverado, on a single four-door sport utility body. Anyone servicing one of these will spend most of the time in the same sections whichever engine is fitted, since the chassis, driveline and body work does not change with fuel.
Engines covered
- 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
- Scottsdale
- Silverado
Known issues on the 1990 R1500 Suburban. This model year carries a clean federal record: no recalls, and no complaints logged by owners with NHTSA. With no pattern to warn against, the useful measure is how far the coverage reaches, and here it runs from valve adjustment and cylinder-head work through clutch, transmission and axle overhaul to brake, steering and suspension service, ending in the wiring diagrams for lighting, charging and instrumentation. Each system comes with its own specifications, torque values and diagnostic steps.
