This factory service and repair manual for the 1993 GMC W6500 Forward documents the 396 cubic inch inline-six, 6.5 liters, turbocharged and diesel, in the low tilt straight truck body and the W6R042 trim. One engine, one body, one trim: the book has no branching to do, so its procedures run continuously from engine service through chassis work and into the electrical diagrams, with the specifications and torque values stated where each job needs them.
Engines covered
- 6.5L inline-six (396 cu in) — turbocharged, diesel
Body styles covered
- Straight truck, low tilt
Trims covered
- W6R042
Known issues on the 1993 W6500 Forward. The 1993 W6500 Forward carries no recalls on the federal record and no owner complaints with NHTSA. Nothing on the truck has been flagged as a systematic problem, which leaves the manual to support the work that has to be done anyway: diagnosis on the turbocharged 6.5L diesel, the specifications a repair must satisfy, torque values for the fasteners, and wiring diagrams for tracing circuits.
