This factory service and repair manual for the 2000 GMC T6500 is written for one chassis designation, F6B042, and two turbocharged diesel inline-sixes: a 7.2L displacing 441 cubic inches, built with overhead valves, and a 7.8L displacing 475 cubic inches. There is no gasoline option to account for, so the engine sections concentrate on diesel service and mechanical work, with the specifications and torque values held separately for each, and the rest of the truck documented system by system.
Engines covered
- 7.2L inline-six (441 cu in) — OHV, turbocharged, diesel
- 7.8L inline-six (475 cu in) — turbocharged, diesel
Trims covered
- F6B042
Known issues on the 2000 T6500. The federal record carries nothing against this model year — no recalls and no owner complaints logged with NHTSA. The manual's job is the plain one: procedures, specifications, torque values, wiring diagrams and diagnostics for the 7.2L and 7.8L turbocharged diesel sixes and for the chassis, driveline, brake, steering and body systems of a medium-duty truck. On a vehicle with no documented failure pattern, that reference material is the whole basis for planning a repair correctly the first time.
