1988 GMC B6000 Service and Repair Manual
This factory service and repair manual for the 1988 GMC B6000 divides its engine coverage into a gasoline pair and a diesel pair: the 6.0L OHV and 5.7L V8s on one side, the turbocharged and naturally aspirated 8.2L V8 diesels on the other. All four go into the B6P042 bus, built as a cab forward school bus and as a cab forward non school bus. Fuel and ignition work differs sharply between the two kinds of engine, and the book treats them accordingly.
Engines covered
- 6.0L V8 (366 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — naturally aspirated, gasoline
- 8.2L V8 (501 cu in) — turbocharged, diesel
- 8.2L V8 (501 cu in) — naturally aspirated, diesel
Body styles covered
- Bus (school), cab forward
- Bus (non school), cab forward
Trims covered
- B6P042
Known issues on the 1988 B6000. The federal record on this bus is clean in both respects, no recall action and nothing from owners. That leaves the manual its usual ground: procedures, specifications, torque values, wiring diagrams and diagnostics for the four engines listed, and the same for the cab forward chassis. Brakes, steering, suspension, driveline and the body electrical system are all documented, which is what keeps a bus of this age in service rather than in the yard.
