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What would cause your car to idle rough only in park?

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Old 05-25-2007, 12:28 AM
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lsustang04
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Default What would cause your car to idle rough only in park?

Hey guys just wondering what would make the car idle rough only in park? The car seems to idle a little rough only in park and the car will vibrate somewhat. It seem to happen after I filled up with some gas. Could it be just bad gas, iac problem, exhaust leak, cai, or just a sensor?
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Old 05-25-2007, 02:26 AM
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CoolAid
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Default RE: What would cause your car to idle rough only in park?

Check/Clean the IAC. Check for dirty air filter. Use some STP gas treatment if you think its the gas.
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Old 05-25-2007, 02:34 AM
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SVTBill
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Default RE: What would cause your car to idle rough only in park?

one quick fix maybe



the car will idle rougher with the a/c on

with my o/r plus flows it almost sounds cammed at idle with the a/c on



but yeah, it could be anything you said, and maybe even the a/c being on...thats normal
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