F Larger F Series Trucks Ford EGR legel unplug, Increases mileage Ok, so I was messing aroung with my truck and unplugged the vacuum line going to the EGR green line , I capped it off with just a simple vacuum cap, pushed it on, and capped the metal tube coming out of the EGR valve, I drove From Lima, Oh to just a .An illuminated Check Engine Light and a rough running engine could indicate that one or more of the ignition coils has failed. Rough Idle Caused by EGR Sensor Sticking Intermittent rough idle may be caused by the EGR sensor sticking, causing the EGR valve to stay slightly open. An illuminated Check .Irregularities in engine performance are often a sign that the EGR valve has a problem. If the EGR valve is not working, the car .Ford F parts accessories from JC Whitney. Find the latest Ford F parts and accessories from your favorite brands..
The Ford EGR system uses components an EGR valve that opens and closes a passage from the exhaust to the intake manifold, an Electronic Vacuum Regulator EVR that opens and closes passages from the intake manifold to the diaphragm of the EGR valve. Ford Powerstroke .L Water Separator Valve. Application Click Vehicle Application Tab for Full List of Vehicles Ford .L F .