This factory service and repair manual for the 1996 GMC P6500 documents a chassis whose specification stayed short to the end: the P6S042 trim, a 6.0L gasoline V8 of 366 cubic inches, a 7.0L gasoline V8 of 427 cubic inches and a turbocharged 6.6L diesel inline-six of 403 cubic inches, every one of them an overhead-valve design. Procedures, specifications, torque values, wiring diagrams and diagnostics are given system by system for all three engines and for the chassis around them.
Engines covered
- 6.0L V8 (366 cu in) — OHV, naturally aspirated, gasoline
- 7.0L V8 (427 cu in) — OHV, naturally aspirated, gasoline
- 6.6L inline-six (403 cu in) — OHV, turbocharged, diesel
Trims covered
- P6S042
Known issues on the 1996 P6500. The federal record on the 1996 P6500 is clean: no recalls, no owner complaints with NHTSA. With the truck long out of production, the manual is the practical source for the numbers a rebuild needs — clearances and torque values for the two gasoline V8s and the turbocharged 6.6L diesel, adjustment specifications for the brake and steering systems, and wiring diagrams and diagnostics covering the chassis circuits.
