2001 GMC W5500 Forward Service and Repair Manual
This factory service and repair manual for the 2001 GMC W5500 Forward serves three trim codes, W5R042, W5S042 and W5T042, all of them in the low tilt straight truck form, and two turbocharged diesel engines. One is a 290 cubic inch inline-four of 4.8 liters; the other is a 475 cubic inch inline-six of 7.8 liters. A shop that sees both will find the engine sections kept apart, with the specifications, torque values and diagnostics for each stated separately.
Engines covered
- 4.8L inline-four (290 cu in) — turbocharged, diesel
- 7.8L inline-six (475 cu in) — turbocharged, diesel
Body styles covered
- Straight truck, low tilt
Trims covered
- W5R042
- W5S042
- W5T042
Known issues on the 2001 W5500 Forward. No recalls have been issued for the 2001 W5500 Forward and NHTSA holds no owner complaints on it, so the federal record is clean in both respects. That returns the focus to routine service on whichever of the two turbocharged diesels a given truck was built with, using the specifications and torque values published for that engine and the wiring diagrams drawn for the chassis it sits in.
