Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - How to: Clean a Zetec IAC
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Old 05-03-2012, 01:31 PM   #18
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I'm sorry to say that I have had the same issue. Replaced the IAC with a new one but could not the gasket on. (major mistake). now when i start the car it revs way too high for like 5 minutes and then comes to a normal idle. But the thing is messed up because it accelerates on its own at 40 mph with my foot off the gas.

I will remove this IAC and put the gasket on like i should have. According to the experts/moderators on this site, a vacuum leak around the gasket can be the cause. Since all i fooled with was the IAC (plus cleaning TB) it appears the gasket (lack-of) is implicated.

I'll report back whhat happens with the new gasket.
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