This factory service and repair manual for the 1989 Chevrolet W6500 Tiltmaster is organized around the low tilt straight truck body and the model code W6R042 that identifies it. Two engines were listed: a 6.5-liter inline-six of 396 cubic inches without forced induction, and a turbocharged 5.8-liter six of 353 cubic inches. Both run on diesel, and both are covered to the same depth, with specifications and torque values quoted per engine rather than averaged across the pair.
Engines covered
- 6.5L inline-six (396 cu in) — naturally aspirated, diesel
- 5.8L inline-six (353 cu in) — turbocharged, diesel
Body styles covered
- Straight truck, low tilt
Trims covered
- W6R042
Known issues on the 1989 W6500 Tiltmaster. There is no recall on this model year, and NHTSA holds no owner complaint against it either, so the manual is judged by its reach rather than by any defect it answers. That reach takes in engine mechanical work on both diesels, the fuel and air systems feeding them, the cooling and charging hardware around them, and then the driveline, brakes, steering and cab electrical circuits — each with procedures, specifications, torque values, wiring diagrams and diagnostics of its own.
