1990 Chevrolet R2500 Suburban Service and Repair Manual

This factory service and repair manual for the 1990 Chevrolet R2500 Suburban starts where the work starts, with the engine bay: a 7.4L V8 of 454 cubic inches, a 5.7L V8 of 350, both gasoline, and a 6.2L diesel V8 of 379, all overhead-valve and none turbocharged. One body is covered, the four-door sport utility, in Scottsdale and Silverado trim. From there the manual follows the vehicle rearward through the driveline and outward through the brakes, steering, suspension and wiring.

Engines covered

• 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

• Scottsdale
• Silverado

Known issues on the 1990 R2500 Suburban. The measure of the book is its reach: three engines documented individually, a driveline sized for a heavy wagon, brake and steering systems that carry that weight, and a body whose electrical circuits are mapped completely. Procedures, specifications, torque values, wiring diagrams and diagnostics accompany every one of those systems.