2005 GMC T8500 Service and Repair Manual
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2005 GMC T8500 Service and Repair Manual
For 2005 the heaviest GMC tilt cab narrows to a single chassis configuration, T8F064, a straight truck with a low tilt cab that shares its engineering with the Chevrolet T8500. Power again comes from the turbocharged 7.8L diesel inline-six of 475 cubic inches, the Isuzu-built six that GM fitted across its medium-duty line. This service and repair manual is matched to that 2005 truck, carrying the procedures, specifications, torque values, wiring diagrams, diagnostics and maintenance schedules for the engine, driveline, air brakes, chassis and cab rather than figures borrowed from a neighbouring year.
Engines covered
- 7.8L inline-six (475 cu in) — turbocharged, diesel
Body styles covered
- straight truck, low tilt
Trims covered
- T8F064
Known issues on the 2005 T8500. No recalls are on federal record for this year, and NHTSA lists no owner complaints. That leaves the maintenance schedules, diagnostic routines and torque specifications in this manual as the main defence against wear on a truck that usually works hard every day.