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1993 ford aerostar idles high


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robertpatriquin
New User

May 1, 2010, 6:53 AM

Post #1 of 6 (1924 views)
1993 ford aerostar idles high Sign In

I have a 1993 ford aerostar that when first started will idle rough ,but when it gets to operating temperature it idles high and when I try to restart it will not. I have replced fuel filter and vacuum lines with no success


Hammer Time
Ultimate Carjunky / Moderator
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May 1, 2010, 7:28 AM

Post #2 of 6 (1921 views)
Re: 1993 ford aerostar idles high Sign In

Is the check engine light coming on at all?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



robertpatriquin
New User

May 1, 2010, 8:57 AM

Post #3 of 6 (1909 views)
Re: 1993 ford aerostar idles high Sign In

yes the engine light does come on


nickwarner
Veteran / Moderator
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May 1, 2010, 9:21 AM

Post #4 of 6 (1905 views)
Re: 1993 ford aerostar idles high Sign In

what are the codes?


robertpatriquin
New User

May 1, 2010, 9:25 AM

Post #5 of 6 (1904 views)
Re: 1993 ford aerostar idles high Sign In

I don't have any codes nor do I know how to retreive them


nickwarner
Veteran / Moderator
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May 1, 2010, 11:32 AM

Post #6 of 6 (1900 views)
Re: 1993 ford aerostar idles high Sign In

the connector is under the hood near the master cylinder. It is black and probably says something like EEC-IV on it. You need an OBD-1 scanner with a Ford adapter. There are two tests, KOEO and KOER. They stand for key on, engine off and key on, engine running. The KOER test needs the engine warmed up first. Do the KOEO test first, followed by KOER. That will tell you the codes that are present. With the problems you are having we need those codes or its like walking around a house in the dark.






 
 
 






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