1990 GMC Light Duty Truck Service Manual (R/V, P, G)

The 1990 Light Duty Truck Service Manual (X-9032) for R/V, P-Truck and G-Van models covers diagnosis, on-vehicle maintenance and light repair for the full-size R/V pickups, Suburban and utility models, P forward-control chassis and G vans. It follows GM's numbered sections, from general information, maintenance and vibration diagnosis through heating and air conditioning, frame and sheet metal, steering and suspension, axles, brakes, the engines (4.3L V6, small-block V8, 7.4L V8, 6.2L diesel and 4.8L L6), transmissions, electrical, accessories and body, and ends with an alphabetical index. Fuel and emissions for throttle body injection are in a separate manual; overhaul procedures are in the Truck Unit Repair Manual and wiring diagrams in a separate booklet.