1994 GMC K2500 Suburban Service and Repair Manual
This factory service and repair manual for the 1994 GMC K2500 Suburban sets a turbocharged 6.5L diesel V8 alongside the 7.4L and 5.7L gasoline V8s, all three fitted to the four-door sport utility body. Base and SLE are the only trims listed. The diesel is the one forced-induction engine here, so its injection and turbocharger specifications sit next to conventional ignition and fuel delivery figures for the gasoline pair, with a separate diagnostic path for each.
Engines covered
- 6.5L V8 (395 cu in) — OHV, turbocharged, diesel
- 7.4L V8 (454 cu in) — OHV, naturally aspirated, gasoline
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- 4-door sport utility
Trims covered
- Base
- SLE
Known issues on the 1994 K2500 Suburban. Two recalls are on the federal record, both involving replacement parts rather than original hardware: a fuel filter that can seal poorly at the connection and let fuel escape near an ignition source, and an oil filter whose sealing failure can drain engine oil, with fire the risk in either case. Owners have filed seven complaints with NHTSA, three on the service brakes, two on the seats and one on fuel and propulsion. Brake and fuel system procedures, with the associated torque values and diagnostics, bear on them.
