F 250 2WD Pickup V8-351 5.8L (1982)
Exhaust Pressure Regulator Vacuum Valve: Testing and Inspection
1.
Run engine at normal operating temperature and set throttle on high cam on 4-140 engine or on kickdown step on other engines.
2.
Connect vacuum gauge to EGR side of load control valve and note reading.
3.
Apply a vacuum of at least 6 inches Hg to venturi port of valve. If gauge does not drop to zero, replace valve.
