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2006 Saturn Ion Question: engine stalls at slow/stopping speed. A/C warms up!

 

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mecajunboy, 2.4L 4 Cylinder, Marrero, LA, July 14, 2010, 20:14
 Enthusiast

Just recently my daughter reported her 2006 Saturn Ion, 2.4L4 having problems. She noted just before coming to a stop or in stopping the engine will vibrate/stall slightly and the A/C will get warm. Then when she proceeds to speed up the A/C gets cool shortly and the vibration stops.

Any suggestions? I'm thinking electrical on are around the engine or possibly the A/C.

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  • Answer #1

    July 14, 2010, 22:17
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     Master

    It sounds like you have an A/C and idle related problem. when the engine gets really slow, the A/C pump will not create enough flow to cool the car.
    So,you need to find out why the idle is getting so low, try turning OFF the A/C and then driving the car, if the car drives and idles really smooth, then there is is an issue with the A/C. If the car still idles rough, then it is an engine control issue. So, here are 2 articles that I wrote about how to inspect either one of those issues.
    For a 2003 ION, you will have a data streaming computer, so I would do this inspection, whether you have a Check Engine Light on or not.

    http://repairpal.com/check-engine-light-diagnosis a good tech should be able to find the problem with out a code, most likely in the Idle control system.

    A/C inspection article

    http://repairpal.com/air-conditioning-diagnosis

    let me know if you need more help

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