1991 Chevrolet R2500 Suburban Service and Repair Manual

This factory service and repair manual for the 1991 Chevrolet R2500 Suburban lists two trims, Scottsdale and Silverado, one four-door sport utility body, and three engines that could hardly be more different in character while sharing a layout: a 7.4L gasoline V8 of 454 cubic inches, a 5.7L gasoline V8 of 350, and a 6.2L diesel V8 of 379, every one of them overhead-valve and naturally aspirated. Choose the engine and you have chosen which specifications, clearances and diagnostic charts apply.

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 1991 R2500 Suburban. The manual covers the ordinary work of keeping a large, heavy wagon running from both ends: engine mechanical, fuel, ignition and cooling procedures at the front, axle, brake, steering and suspension service underneath, and wiring diagrams for the lighting, charging and instrument circuits throughout. Specifications and torque values are given with each procedure rather than assumed.