2000 GMC W5500 Forward Service and Repair Manual
This factory service and repair manual for the 2000 GMC W5500 Forward has more ground to cover than a single-engine book. Two turbocharged diesels are listed, a 4.8L inline-four of 290 cubic inches and a 7.8L inline-six of 475 cubic inches, and three trim codes go with them: W5R042, W5S042 and W5T042. The body form stays one, the low tilt straight truck. Specifications and torque values are called out per engine, so the four-cylinder and the six are never conflated.
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 2000 W5500 Forward. The 2000 W5500 Forward carries a clean federal record, with no recalls issued and no owner complaints logged with NHTSA. What that leaves is a manual covering two very different diesels in the same chassis: the turbocharged 4.8L inline-four and the turbocharged 7.8L inline-six, each with its own diagnostics, specifications and torque values, and both sharing the wiring diagrams that document the W5R042, W5S042 and W5T042 builds.
