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Old 04-22-2008, 07:29 PM
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Re: Idle Air Control(IAC) Testing Replacing for 99+

--TIP--
IF you are having troubles with idling, or cold starts, try cleaning the IAC

Make sure the spring on the IAC is clean , clean the passage into the intake, and also the end tip(pintle) should be clean around the surfaces. Spraying TB cleaner into the port/opening should remove any excess carbon build up. Might try letting it soak for a few.

Red arrows indicate where it should be cleaned, and is in good shape, and is clean.

yello arrow is the "O" ring.

Also make sure the IAC is dry before pluging it in to the wire connector.

Update....
Here is a pic of the IAC port, you can see small amounts of carbon still deep inside. Use A Q tip and TB cleaner to clean it out very good.


This is the back side of the TB's IAC port, it needs cleaned along with the TB butterfly..
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Last edited by xeroinfinity; 07-19-2008 at 09:31 AM.