This factory service and repair manual for the 1998 Chevrolet W4500 Tiltmaster is organized around a truck that offered a choice between compression and spark ignition: a 3.9L inline-four of 236 cubic inches, turbocharged, on diesel, or a 5.7L overhead-valve V8 of 350 cubic inches, naturally aspirated, on gasoline. The body is the low tilt straight truck, the build code is W4S042, and both engines are serviced under the same tilted cab, with the specifications, torque values and diagnostics separated engine by engine.
Engines covered
- 3.9L inline-four (236 cu in) — turbocharged, diesel
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
Body styles covered
- Straight truck, low tilt
Trims covered
- W4S042
Known issues on the 1998 W4500 Tiltmaster. For this model year the federal record stays empty on both counts, recalls and owner complaints alike. That leaves the reference material to speak for itself: starting and charging system diagnosis, diesel injection timing and delivery checks, gasoline ignition and fuel procedures, engine mechanical specifications, cooling and lubrication data, clutch and transmission overhaul, axle and brake work, and wiring diagrams detailed enough to trace a chassis circuit end to end.
