1996 GMC W4500 Forward Service and Repair Manual

This factory service and repair manual for the 1996 GMC W4500 Forward belongs to a low-tilt straight truck built under one code, W4S042. Its engine list holds two entries, of which one is identified: a turbocharged 3.9L inline-four diesel measuring 236 cubic inches; the other carries no description at all. What the book does specify in detail is the truck itself, system by system, with procedures, specifications, torque values, wiring diagrams and diagnostics for the engine, transmission, driveline, brakes, steering, suspension, cab and electrical systems.

Engines covered

• 3.9L inline-four (236 cu in) — turbocharged, diesel

Body styles covered

• Straight truck, low tilt

Trims covered

• W4S042

Known issues on the 1996 W4500 Forward. The manual offers the ordinary detail that keeps a cabover working: fuel injection and supply procedures for the 3.9L turbodiesel, turbocharger and cooling specifications, lubrication capacities and intervals, cab tilt hardware and latch adjustment, brake and steering service, driveline torque values, and wiring diagrams paired with diagnostic charts for the truck's circuits.