1993 ford aerostar idles high - Engine Troubleshooting


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1993 ford aerostar idles high

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Auto Repair Home>> Automotive Repair>> Engine Troubleshooting

robertpatriquin
New User

May 1, 2010, 6:53 AM

Post #1 of 6 (1845 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
Hammer Time profile image

May 1, 2010, 7:28 AM

Post #2 of 6 (1842 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 (1830 views)

Re: 1993 ford aerostar idles high	Sign In

yes the engine light does come on

nickwarner
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May 1, 2010, 9:21 AM

Post #4 of 6 (1826 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 (1825 views)

Re: 1993 ford aerostar idles high	Sign In

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

nickwarner
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May 1, 2010, 11:32 AM

Post #6 of 6 (1821 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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