rough idle?

Discussion in 'Fox 5.0 Mustang Tech' started by 87gtconvt, Dec 24, 2003.


  1. 87gtconvt

    87gtconvt New Member

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    Sometimes when my cars idleing it will be fine for a few minutes, then all the sudden it starts idleing up and down between 900 and 1300rpm? Theres other times when it will idle fine? Its probibly just a bad sensor or something im just not sure which one?
  2. HISSIN50

    HISSIN50 "How long does it take to get help in here? SN Certified Technician

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    need more specifics on your car. mods? aod or stick (aod's sometimes like to hunt unless the idle is set higher than stock 650).

    things to check (good idea anyhow) are iac and tps setting. i would bet cleaning the iac might help if it is something maintenance wise that will be easily remedied.


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  3. grey302

    grey302 New Member

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    sounds like the common surge deamon, first go through your vaccum lines and make sure they are hooked up correctly, no leaks. next look toward the egr.

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