1988 Chevrolet R30 Service and Repair Manual

This factory service and repair manual for the 1988 Chevrolet R30 answers to four trims: Cheyenne, Custom Deluxe, Scottsdale and Silverado. Under them sit four engines — the 4.8L inline-six of 292 cubic inches, gasoline V8s of 350 and 454, and the 6.2L diesel V8 of 379, each with pushrods and none with a turbocharger — and four bodies, from cab and chassis in two- and four-door forms to standard cab and crew cab pickups. Coverage has to hold for every combination of the three.

Engines covered

• 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
• 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

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

Trims covered

• Cheyenne
• Custom Deluxe
• Scottsdale
• Silverado

Known issues on the 1988 R30. The manual is the reference, and for a truck built in this many configurations that is a substantial job — four sets of engine specifications and diagnostics, driveline and axle procedures, brake and steering service, suspension data, and wiring diagrams that have to account for a bare chassis as readily as a crew cab. Torque values accompany each procedure.