EGR Valve & EGR Valve Position Sensor

The EGR valve with this system looks like standard EGR valves, but is air operated rather than vacuum operated. See Fig 2. Mounted on a spacer plate under the carburetor, the EGR valve has a built-in sensor which tells the ECA what the position of the EGR valve stem is. This valve and sensor assembly has no openings for maintenance or testing. If defective it must be replaced.

Fig 1: Electronic Engine Control (EEC) I System Components

Courtesy of FORD MOTOR CO.

Fig 2: EEC I Air Pressure Operated EGR System

Courtesy of FORD MOTOR CO.