Ford Mustang (1999-2004) Service Manual: Idle Air Control (IAC) Valve - 3.8L

Removal

1. Disconnect the battery ground cable. For additional information, refer to Section.

2. NOTE: Discard the idle air control (IAC) valve gasket.

Remove the IAC valve.

  • Disconnect the connector.
  • Remove the two bolts, the IAC valve and the gasket.

Idle Air Control (IAC) Valve - 3.8L

Installation

1. To install, reverse the removal procedure.

Idle Air Control (IAC) Valve - 3.8L

    Throttle Position (TP) Sensor
    Removal NOTE: The 3.8L engine is shown; the 4.6L (2V) is similar. 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. Remove the throttle position (TP) s ...

    Idle Air Control (IAC) Valve - 4.6L (2V)
    Removal 1. Disconnect the battery ground cable. For additional information, refer to Section. 2. NOTE: Discard the idle air control (IAC) valve gasket. Remove the IAC valve. Disconnect ...

    Other materials:

    Component Tests
    Brake Booster 1. Check the hydraulic brake system for leaks or insufficient fluid. 2. With the transmission (7003) in NEUTRAL, stop the engine (6007) and apply the parking brake control (2780). Apply the brake pedal several times to exhaust all va ...

    Symptom Chart
    Condition Possible Sources Action Hard Steering or Lack of Assist Seized lower steering column shaft U-joints. Damaged, fractured steering column bearing(s). Power steering pump. Suspension components. ...

    Air filter check
    WARNING: To reduce the risk of vehicle damage and or personal burn injuries, do not start your engine with the air cleaner removed and do not remove it while the engine is running. Note: Failure to use the correct air filter element may result in severe engin ...