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Replaced the IAC Idle air control valve? Special tool needed?

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Old 26 Apr 2011, 10:58 pm
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Default Re: Replaced the IAC Idle air control valve? Special tool needed?

I also had a problem with my idle control motor valve and since I am a newbie to my car, I didn't know what to do so I had to bring it to a mechanic. The mechanic charged me a big amount and I had no choice but to pay him. Reading the comments in this thread made me realize that it just very easy to check what is wrong with it. Thanks guys!
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Old 27 Apr 2011, 08:05 am
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Default Re: Replaced the IAC Idle air control valve? Special tool needed?

Always check Google for almost anything. Just type in a question and dozens of replies will pop up. If you would have done this with "IAC" or "idle air controller" there would be links to this forum and other places talking about it.
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Old 30 Apr 2011, 05:25 am
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Default Re: Replaced the IAC Idle air control valve? Special tool needed?

Some people might be interested on what happened so I thought I would post. After googling a bit more, I found Autozone's instructions here( Registration required, I think)

Anyways, they have troubleshooting instructions:

Measure the resistance across the IAC Motor pin terminals.
Is the resistance reading at 9.7 ohms (plus or minus 1.0 ohm)-

If yes, go to Step 3

If no, replace the IAC valve/motor. Perform the POWERTRAIN VERIFICATION TEST.
So I borrowed a multimeter and tested the IAC motor--turns out the resistance was 10.3 ohms so IAC is ok.

I now suspect the rough idle to be due to an incorrectly installed (recently changed) timing belt.

Last edited by worcestersauced; 30 Apr 2011 at 05:28 am. Reason: wanted to make things clearer
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