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Old 03-14-2004, 08:34 PM
ryan3295 ryan3295 is offline
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rough idle

My 1998 Ford Explorer with the SOHC engine has started idling very erratically (between 500 and 1500 RPMs) when I first start it up in the morning, the erratic idle goes away after a few minutes. The check engine light isn’t on and it doesn't do this at any other time during the day. Any ideas would be appreciated.
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Old 03-15-2004, 10:02 AM
Nand12 Nand12 is offline
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You have a classic case of a bad or dirty/plugged up IAC (Idle Air Control) valve. It's a very simple part to change and you can pick it up at an autoparts store and install it yourself. Here is a site with full instructions: http://www.fixyourford.com/wontidle.html

Good luck.
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Old 03-15-2004, 12:39 PM
Opera House Opera House is offline
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Re: rough idle

Maybe yes, maybe no. Could also be lower intake manifold gaskets.
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Old 03-17-2004, 10:26 PM
ryan3295 ryan3295 is offline
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Cleaned out the idler air control valve, no problems since.
thanks
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Old 03-18-2004, 06:58 AM
Nand12 Nand12 is offline
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Glad to hear it. Have fun.
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Old 03-18-2004, 03:20 PM
Notorious_Ford_Guy Notorious_Ford_Guy is offline
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Re: rough idle

its good to clean the IAC every once in a while,

along with the MAF sensor as well
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