This factory service and repair manual for the 1999 Chevrolet W4500 Tiltmaster lists the 5.7L overhead-valve V8 of 350 cubic inches, naturally aspirated on gasoline, alongside a 290-cubic-inch 4.8L inline-four turbodiesel. Both are fitted to the low tilt straight truck in W4S042 form. Two engines of that different a character need two sets of numbers, and the manual gives them: separate fuel and air specifications, separate diagnostic trees, and shared procedures wherever the clutch, transmission, axle and frame are concerned.
Engines covered
- 5.7L V8 (350 cu in) — OHV, naturally aspirated, gasoline
- 4.8L inline-four (290 cu in) — turbocharged, diesel
Body styles covered
- Straight truck, low tilt
Trims covered
- W4S042
Known issues on the 1999 W4500 Tiltmaster. The federal record is clean for this model year — no recalls, no owner complaints. The manual's job here is straightforward reference: injection timing, fuel delivery and turbocharger checks on the 4.8L diesel, ignition timing and fuel system service on the gasoline V8, engine mechanical clearances and torque values, driveline and rear axle procedures, brake and steering specifications, and wiring diagrams with the diagnostic charts for the truck's electrical circuits.
