Ford Mustang (1999-2004) Service Manual: Exhaust Gas Recirculation (EGR) Vacuum Regulator Solenoid
Mach I vehicles
1. Remove the air intake scoop. For additional information, refer to Section .

All vehicles
2. Remove the exhaust gas recirculation (EGR) vacuum regulator solenoid.
- Disconnect the electrical connector.
- Remove the bolts.
3. To install, reverse the removal procedure.
Differential Pressure Feedback Exhaust Gas Recirculation
(EGR) System
Removal and Installation
1. NOTE: The 4.6L (2V) is shown. The 4.6L (4V) and 3.8L are
similar.
NOTE: Bolts may be used in place of nuts on some applications.
Remove the differential pressure fee ...
Positive Crankcase Ventilation (PCV) Hose
Removal and Installation
1. Disconnect the hose on the PCV valve.
2. Twist and remove the PCV valve.
3. To install, reverse the removal procedure.
...
Other materials:
Installation
1. NOTE: A new torque converter drain plug must be used.
Install the torque converter drain plug.
2. Install the torque converter housing plug.
3. CAUTION: If installing a new filter, and the seal remains in the
main control bore,
carefully use a small ...
Component Tests
Idle Air Control (IAC) Valve
1. Open the hood.
2. NOTE: Key symptom is elevated idle speed while noise is occurring.
NOTE: "Snapping" the throttle can induce the noise.
Verify the condition by operating the vehicle for a short time.
3. Inspect the IAC valv ...
Multifunction Switch
Removal
1. Disconnect the battery ground cable.
2. Remove the ignition switch lock cylinder.
1. Insert the ignition key into the ignition switch lock cylinder and
turn to RUN position.
2. Push the ignition switch lock cylinder release tab with a p ...
