2001 Hyundai Sonata Logo

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Posted on May 23, 2008
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Engine will not idle down

In fact will climb a hill without pressing on gas ( 2000 rpms ) when stopped at a light idles at 1500 rpm normally i should be idling at 750 rpm when you remove foot from brake car takes off.

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  • 2 more comments 
  • lambo_7 May 23, 2008

    sorry 2001 sonata

  • lambo_7 May 23, 2008

    sorry 2001 sonata

  • mikey2009 May 31, 2008

    engine will rev up all by itself while driving down the road

  • rickyrecodo4
    rickyrecodo4 Oct 03, 2017

    your AIC sensor that decides on how much idle your engine needs is stuck of dirt. It is appropriately engage by reading the heat temp of the coolant and respond accordingly as programmed in the eco. try to clean it must be attached on the throttle body help by two bolts. clean the water inlets/outlets too so that the sensor will be able to get an accurate reading of the coolant temperature. the normal idle rpm is 700-800 range.

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  • Posted on Oct 03, 2017
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Hi there lambo_7. your AIC sensor that decides on how much idle your engine needs is stuck of dirt. It is appropriately engage by reading the heat temp of the coolant and respond accordingly as programmed in the eco. try to clean it must be attached on the throttle body help by two bolts. clean the water inlets/outlets too so that the sensor will be able to get an accurate reading of the coolant temperature. the normal idle rpm is 700-800 range.

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  • Posted on May 25, 2008
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Hi have a nice day!
Your model is equipped with Vehicle Speed Sensor System.
I think it would be better to take it to an authorized service station to check it's operation.

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When my cs2 lancer starts first on mornings. it stuturs cut off. after that the car idles up normal. but when going up hill power. rpm not crossing 2000 can

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