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:

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    Inspection and Verification 1. Verify the customer's concern by operating the parking brake system to duplicate the condition. 2. Inspect to determine if one of the following mechanical or electrical concerns apply: Visual Inspection Chart Mechanica ...

    Component Tests
    Grid Wire Test 1. Using a bright lamp inside the vehicle, inspect the wire grid from the exterior. A broken grid wire will appear as a brown spot. 2. Run the engine at idle. Set the rear window defrost switch to ON. The indicator light should co ...

    Resistor
    Removal 1. Disconnect the connector. 2. Remove the screws. 3. Remove the resistor. Installation 1. To install, reverse the removal procedure. ...