GMC Workshop Service and Repair Manuals

R 3500 P/U 2WD V8-454 7.4L VIN W 4-bbl (1988)

• Powertrain Management
• Sensors and Switches - Powertrain Management
• Sensors and Switches - Fuel Delivery and Air Induction
• Auxiliary Fuel Tank Control <--> [Fuel Tank Selector Switch]
• Component Information
• Locations