For 1990-2009 cars

### Removal Procedure

Warning: Refer to Battery Disconnect Warning in the Preface section.

1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
2. Disconnect the idle air control valve (IACV) connector (2).

Note: Clean the IAC valve O-ring seal area, the pintle valve seat and the air passage with a suitable fuel system cleaner. Do not use methyl ethyl ketone.

3. Remove the IACV retaining bolts (2).
4. Remove the IACV (1).

### Installation Procedure

Note: If installing a new IAC valve, be sure to replace it with an identical part. On IACV that have been in service, do not push on the valve pintle. The force required to move the pintle may damage the threads on the worm drive.

1. Install the new O-ring seal with the IACV (1).

Caution: Refer to Fastener Caution in the Preface section.

2. Install the IACV retaining bolts (2) and tighten to 3 N·m (27 lb in).
3. Connect the IACV connector (2).
4. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.