Question about 1994 Ford Probe

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ROugh idle I have a 94 probe it runs smooth until you stop, it idles rough at stop and in park it has not cut off just idles rough.i can put it in neutral and it idles fine and drives fine.

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  • Anonymous Mar 30, 2014

    my car runs rough at first, then when driving and coming to a stop, the engine idles down and drops rpm enough to stop running

  • Anonymous Mar 31, 2014

    Saturn vue idles rough but drives fine

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  • Ford Master
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There are 2 things that usually cause this, one is a dirty intake idle control valve and the other is hard engine mounts, I would say that both most likely apply to your car. try cleaning the intake with the following procedure from Ford.
Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Feb 18, 2009

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Posted on Jan 02, 2017

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Car runs smooth, until I have to stop at red light or stop sign, then it runs rough. When I put it it neutral, it runs smooth. Could that be the EGR valve sticking? Any help would be appreciated, than


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