This factory service and repair manual for the 1993 GMC C3500HD serves a two-door conventional cab and chassis, Base trim, powered by any of four engines: the turbocharged 6.5L diesel V8, the naturally aspirated 6.2L diesel V8, and the 5.7L and 7.4L gasoline V8s. Trucks like this rarely stay standard once a body builder has finished with them, which makes the factory procedures, specifications, torque values, wiring diagrams and diagnostics in this book the fixed point a technician can work back to.
Engines covered
- 6.5L V8 (395 cu in) — OHV, turbocharged, diesel
- 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
- 6.2L V8 (379 cu in) — OHV, naturally aspirated, diesel
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 2-door cab & chassis, conventional
Trims covered
- Base
Known issues on the 1993 C3500HD. Two recalls stand against this model year, one on replacement oil filters that may seal badly and release engine oil near an ignition source, the other on transmission fluid being forced through the vent tube by heat and catching fire. The complaint record is much busier: twenty reports, led by five on steering, four on the power train and four on the service brakes. Steering gear and linkage, transmission and axle repair and brake hydraulics all carry full procedures here, with the wear limits, torque values and diagnostic sequences that go with them.
