1991 GMC Light Duty Truck Service Manual (Suburban, R/V 3500, P)

The 1991 GMC Light Duty Truck Service Manual covers diagnosis, on-vehicle maintenance and light repair for the R/V Series trucks, the Suburban and utility models, the R/V 3500 and the P30/3500 commercial and motorhome chassis. Engines covered include the 4.3 liter V6, the 5.0 and 5.7 liter V8s, the 7.4 liter V8 and the 6.2 liter diesel. The manual refers to separate books for throttle body injection fuel and emissions, unit repair of major components, and electrical diagrams and diagnosis. It follows GM's numbering from 0 General Information through 10 Body, with sub-sections for each system.