Question about 1999 Daewoo Lanos

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Car running problem

Engine revs slow to come down when foot is taken off the gas.car sometimes jerks just like when the ignition is turned off ond on, other than this the car runs ok.

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  • p_hornby1 Jan 19, 2009

    The car is a manual, what happens is, I can be driving down a road and the car will **** just like having the car in to high a gear and going slow or like the old cars that had carbs and they had a bit of dirt in a jet, plus the revs are slow to come down.



    John

  • Raymond Hall
    Raymond Hall May 11, 2010

    Is your vehicle a manual or auto ?

  • Anonymous Mar 18, 2014

    car slows down when foot on the gas

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Ok Slow deceleration rev responce was part of the ECU software to keep the emissions down ,however if this has only just started you can try to reset the IAC valve ,the procedure is as follows.

Turn ignition key on ,unplug the IAC valve ,turn the key off ,replug the IAC valve. do this 3-4 times .Then start the engine while holding the gas pedal to 2000 rpm ,then slowley let the go of the gas pedal till the engine idles .

The IAC valve is located on the throtle body and has 4 wires to it.

Sometimes the throtle body needs to be cleaned and then reset.

Posted on Jan 20, 2009

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