This factory service and repair manual for the 2008 GMC T7500 has one engine on its list, the turbocharged 7.8L inline-six diesel of 475 cubic inches, fitted to the T7F042 configuration. Late in the model's run the truck was a settled design, and the book reads that way: procedures for engine service, cooling, fuel delivery, driveline and brakes stated once and stated plainly, with the published specifications and torque values alongside them and wiring diagrams and diagnostic sequences covering the chassis circuits that support the whole.
Engines covered
- 7.8L inline-six (475 cu in) — turbocharged, diesel
Trims covered
- T7F042
Known issues on the 2008 T7500. The federal record is clean for this year — no recalls, no owner complaints logged with NHTSA. For a truck bought to work, that means the questions are the ordinary ones: what the clearance should be, what the fastener torques to, why a circuit reads the way it does. The manual answers those with published specifications and torque values for the 7.8L diesel and chassis, and with wiring diagrams tied to diagnostic sequences.
New Vehicle Monitoring Programs Section in IVH
This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
Showing the 8 most recent of 144 technical service bulletins on file with NHTSA.
