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BIG Problem

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Old Aug 6, 2007 | 10:40 PM
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BIG Problem

I have a 1996 Ford Ranger 2.3L. When I start my car and start driving intially and I exceed 3000 rpms and then come to a complete stop, the car sounds like its going to die because the rpms goes to 500 rpms and starts to shake when it is suppose to be at 1000-1500 rpms when idling at a stop and then after a few seconds it starts iidling at 1000-1500 rpms again. The only check engine light to go on was "misfire" but I just changed my spark plugs and wires a few months ago and it did not have this problem before. I also replaced my whole block and pistons and everything, so I know it is not compression lost. When I have been driving after a while and the engine is warmed up it does not have this problem when I stop.

Whats the problem?
 

Last edited by mort13; Aug 6, 2007 at 10:45 PM.
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Old Aug 7, 2007 | 04:43 AM
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When did you get the misfire code? Before or after changing the plugs?

Assuming it's not an ignition issue, then I'd say you are looking at a bad IAC.
 
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Old Aug 7, 2007 | 11:01 AM
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I received the misfire code after changing the plugs but not for a few months
 
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Old Aug 7, 2007 | 11:04 AM
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may I should check the IAC valve, where is it located?
 
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Old Aug 7, 2007 | 11:54 AM
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The IAC is mounted on the upper intake near the throttle body. Should look something like this:



Check out: http://www.autozone.com/az/cds/en_us...rInfoPages.htm
 
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