1990 GMC V1500 Suburban Service and Repair Manual

This factory service and repair manual for the 1990 GMC V1500 Suburban covers the four-door sport utility as Base or SLE, still with the 6.2L naturally aspirated V8 diesel and the 5.7L gasoline V8, both overhead-valve. The book follows the vehicle system by system — engine mechanical, fuel, cooling, charging, transmission and transfer case, axles, brakes, steering, suspension, body and wiring — and each of those sections carries its own removal and installation procedures, published specifications, torque values and diagnostic sequences.

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

• Base
• SLE

Known issues on the 1990 V1500 Suburban. The complaint record for this model year is thin: a single owner filing with NHTSA, concerning the steering. On a full-size four-wheel-drive wagon the steering system is a linkage of many wearing joints, and diagnosing play in it means working through the box, the pitman and idler arms, the tie rod ends and the front suspension geometry in order. The manual sets out that inspection, with published specifications, torque values and alignment procedures for the components involved.