GMC Workshop Service and Repair Manuals

C 3500 Truck 2WD V8-454 7.4L VIN J SFI (1999)

• Powertrain Management
• Emission Control Systems
• Exhaust Gas Recirculation
• Exhaust Pressure Regulator Vacuum Valve, EGR
• Component Information
• Locations
• Exhaust Pressure Regulator (EPR) PWM Valve Solenoid