W350 1 Ton Pickup 4WD V8-318 5.2L VIN R 4-bbl (1982)
Air Injection Control Valve: Service and Repair
1. Remove air and vacuum hoses from the switch/relief valve.
2. Remove valve attaching screw, then the valve.
3. Remove gasket material from valve and mounting surface.
4. Reverse procedure to install, using a new gasket. Torque attaching screws to 125 inch lbs.