F 100 2WD Pickup L6-300 4.9L VIN E 1-bbl (1982)
Air Injection Check Valve: Service and Repair
PROCEDURE
1. Disconnect air supply valve from hose and, using a 1 1/4 inch crow-foot wrench, remove check valve.
2. Clean threads on air manifold adapter using a wire brush, then install new check valve.