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Idle at stops is weird...

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Old Jul 26, 2008 | 04:18 PM
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Question Idle at stops is weird...

So about 3 weeks ago I noticed something weird with my idle at red lights. When my car is in drive, and I am at a complete stop, my idle will go from about 800 RPMs and rise to about 1200 RPMs, then go back down to 800. It rises about once every 3 seconds. It doesn't happen at any other time. It hasn't affected power from what I can tell. Any ideas??
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Old Jul 26, 2008 | 11:26 PM
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anyone?
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Old Jul 28, 2008 | 12:05 AM
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I would remove the iac sensor and clean it with some intake cleaner.
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Old Jul 28, 2008 | 12:24 AM
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thats exactly what my car was doing and, I cleaned the tb,iac and maf. and hasnt done it since also rule of thumb check battery power cable is tight and uncorroded.
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Old Jul 28, 2008 | 09:20 AM
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My guess also is the IAC valve. Do a search on proper cleaning method.
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Old Jul 28, 2008 | 10:07 PM
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Thx for your help guys, I will try this later in the week and let you know how it goes.
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