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  #1  
Old 08-11-2010, 01:53 PM
jakegday jakegday is offline
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un-steady idle

hello all. when i pull into my parking spot, i shift into park and shut my a/c off. after i shut my a/c off my idle RPMs take a serious dive (to about 500) then bounce back up, and then it just keeps bouncing. i can shut the car off, and start it right back up, and everything will be perfect again....

any suggestions?
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Old 08-11-2010, 06:07 PM
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tblake tblake is offline
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Re: un-steady idle

Clean the IAC motor and its passage in the throttle body. Then check for vacuum leaks.
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Old 08-12-2010, 04:41 PM
jakegday jakegday is offline
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Re: un-steady idle

will carburetor cleaner be ok to use?
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2001 Grand Prix GT: cat/u-bend/resonator delete, zzp PLOG, Custom Intake, DHP PCM,
1981 Fairmont 6cyl 3 speed
1978 Ford Ranchero GT 302 with a few goodies
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Old 08-12-2010, 06:55 PM
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Re: un-steady idle

Yes that would be alright. here's a link with some info about it:

IAC cleaning
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