Ford F2TZ-9F483-F Valve Assembly

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To maintain the EGR valve for vehicles with EEGR, you should unplug the electrical connector from the EGR valve position sensor, unscrew the threaded fitting for the external exhaust supply tube (if present), remove the vacuum line and mounting bolts, detach the valve, and replace the gasket. If replacing the EGR valve without the position sensor, transfer the sensor to the new valve with a new O-ring.

The operation of the EGR valve is controlled by a vacuum-activated diaphragm built into the valve.

Checks for ported valves, integral back pressure transducer valve, and electronic EGR valves involve vacuum testing, leakage tests, functional tests, and resistance measurements.

The PFE system relies on downstream pressure for EGR control, while the DPFE system monitors both upstream and downstream pressures for more precise control.

The steps for replacing the Differential Pressure Feedback Sensor are as follows: a) Disconnect the battery. b) Detach pushpin retainers. c) Disconnect the electrical connector and vacuum hoses. d) Remove securing bolts. e) Reinstall in reverse order.

The amount of exhaust gas reintroduced is dependent on many factors such as engine speed, altitude, manifold vacuum, exhaust system back pressure, coolant temperature, and throttle angle.

Checks for ported valves, integral back pressure transducer valve, and electronic EGR valves involve vacuum testing, leakage tests, functional tests, and resistance measurements.

To replace the charcoal canister, you should remove a single mounting bolt, lower the canister, detach the hose, and reinstall it in reverse.