New Manual from General Motors.

This service manual contains diagnosis, on-vehicle service, wiring diagrams, and component unit repair for Medium Duty Steel Cab Vehicles.

Models Covered:

• NPR/W4/4000 (Diesel Engines)

Contents:

• General Information
• Heating and Air Conditioning
• Frame and Steel Metal
• Steering, Suspension, Wheels and Tires
• Rear Axle and Propeller Shaft
• Brakes
• Engine
• Transmission
• Cab and Chassis Electrical
• Metric and Fastener Information
• Steel Tilt Cab

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