This is topic HELP my car ildle stays high and wont lower rpm(foxbody) in forum Tech Talk at Northern California Ford Owners  .


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Posted by chp5.0 (Member # 7661) on :
 
when i get off the freeway my car idle stays high and wont lower the rpm?
 
Posted by GreyLX (Member # 5601) on :
 
IAC motor. Clean or replace.

[Big Grin]
 
Posted by chp5.0 (Member # 7661) on :
 
WHERE CAN I GET IT AT
 
Posted by GreyLX (Member # 5601) on :
 
quote:
Originally posted by chp5.0:
WHERE CAN I GET IT AT

Hmmmm, lets see parts for one of the most popular cars in America........Maybe the auto parts store? Kragen? Autozone? Pep Boys?


[Big Grin]
 
Posted by uh0h50 (Member # 3125) on :
 
i had the same problem. spray some WD-40 on the throttle body linkage and the lines that run to it. never had a problem with it again. it's worth a try.
 
Posted by 92stangLX (Member # 3252) on :
 
Also, check for vaccuum leaks. You can try cleaning the trottle body and the idle bypass.
 
Posted by chp5.0 (Member # 7661) on :
 
inside or directly on it
 
Posted by 92stangLX (Member # 3252) on :
 
quote:
Originally posted by chp5.0:
inside or directly on it

I would just take the IAC off and check it out. They can sometimes get clogged wiht carbon and shit.
 
Posted by LS1EATR (Member # 2702) on :
 
haha thats funny that shit happen to me today, but i turn off my car then turn it back on and it wasnt doing it anymore, but i should do the same thing clean it.. [Big Grin]
 
Posted by ScottRF88 (Member # 7882) on :
 
whats a IAC? Mines doing this as well.
 
Posted by getjobdone (Member # 4666) on :
 
quote:
Originally posted by ScottRF88:
whats a IAC? Mines doing this as well.

its this cylindrical looking thing attached to the side of the throttle body at a 45* angle
 
Posted by Adam5.0 (Member # 6995) on :
 
idle air control
 
Posted by ScottRF88 (Member # 7882) on :
 
Thanks
 
Posted by SmokinLX (Member # 1684) on :
 
+1 for the vaccum leak. Jest had My new header melt a line and bam would'nt idle down and was surging occasionally. Started doing it yesterday and I fixed it last night. If You look around and can't find anything obvious just spray some carb cleaner/starting fluid around vaccum hoses and upper to lower intake area. Have You done any work to the car lately or check engine light on? You can try pulling codes also.
 




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