2007 GMC C6500 Topkick Service and Repair Manual

This factory service and repair manual for the 2007 GMC C6500 Topkick lists three engines against three body configurations. The engines are the turbocharged 7.2L inline-six diesel of 441 cubic inches, the naturally aspirated 8.1L overhead-valve gasoline V8 of 496 cubic inches and the turbocharged 7.8L inline-six diesel of 475 cubic inches; the bodies are the 2-door conventional cab and chassis, the crew cab and chassis and the cutaway, under three trim codes. Engine, chassis and electrical material is separated by system, with torque values, wiring diagrams and diagnostics throughout.

Engines covered

• 7.2L inline-six (441 cu in) — turbocharged, diesel
• 8.1L V8 (496 cu in) — OHV, naturally aspirated, gasoline
• 7.8L inline-six (475 cu in) — turbocharged, diesel

Body styles covered

• 2-door cab & chassis, conventional
• Cab & chassis, crew cab
• Cutaway

Trims covered

• C6C042
• C6E042
• C6V042

Known issues on the 2007 C6500 Topkick. One recall is on the federal record for the 2007 C6500 Topkick, and it concerns a wheelchair lift fitted to specialty conversions: the platform side plate could crack, letting the platform separate from the lift and come to rest against the door, where it could fall out once that door was opened. One owner complaint, on tires, is also recorded. Neither points at the chassis itself, so the manual's ordinary content — engine specifications, chassis and wheel fastener torque values, wiring diagrams and diagnostic procedures — is what most owners will reach for.