Question about 2002 Ford Taurus

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I have a 2002 taurus idles high from 1000 to 1800 rpm's, 2-5 seconds when hot or cold then comes down to correct idle, happens on start up or driving. Suggestions?

Replaced idle air valve and throttle position sensor, cleaned the throttle body and checked for air/vacuum leaks, no good. Noticed that when I remove electrical connector from idle air valve all ok but check engine lite comes on.

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Chech engine light is letting you know that the idle air valve has been disconnected. looks like you have a bad idle air valve.

Posted on Aug 24, 2014

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6 Suggested Answers

6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 92 Answers

SOURCE: Engine surge during warm up.

Try changing your PCV valve make sure the hose is clean and not full of oil. Also check the elbow end that goes to the intake they tend to collapse from oil saturation. Hope this helps.

Posted on Sep 29, 2009

toney clark

  • 491 Answers

SOURCE: Engine idles to fast and runs rough

you can check timing, or check for vacuum leaks

Posted on Oct 12, 2008

warlock61

warlock61

  • 659 Answers

SOURCE: 2000 Taurus. Will not idle. No check engine light.

check on the rear of the engine below the throttlebody area there is a vacuum line that collapses or splits and cause this

Posted on Jun 05, 2009

jturcotte

Jeffrey Turcotte

  • 8984 Answers

SOURCE: 1999 ford taurus idles at 2200 when started then

Hi, have you checked your intake manifold gaskets for a leak? If not, start the car and spray carb cleaner on the gaskets, If the engine speed changes, you have a leak. Also recommend you verify the throttle is closing fully. please let me know if you have questions or need instructions for changing the gaskets.

Posted on Jan 03, 2011

fordexpert

  • 5692 Answers

SOURCE: My car starts hard in

If you do not have a scanner try Autozone, Oreillys, or Advance autoparts. They will scan for free.

Check your water sensors for the Cold start routine. You should have 2 things there for the Temperature, 1 for the water gauge and the second works the Cold start. Now if the Cold start routine is not getting a reading of the engine warming up, it will not cancel and will stay at high idle.

You also may have a weak thermostat. You do not have to exceed the specs with too hot a thermostat, just one that is working. Sometimes a difference of 10 degrees is enough to keep the phases from clicking in when they are suppose to.

With over 200,000 miles you must have put in 1 or 2 parts by now. It should not take you too long to fix this. I hope my solution is helpful to you.

Posted on Feb 25, 2011

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It can be issue with IAC( idle air control valve) causing the problem.


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There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----
Bad miss at idle? http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

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http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

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1 Answer

My car starts hard in the morning or after it sits for a couple of hours. While I'm turning over the engine the engine will start then the engine light will come on and the cooling fan will start and the...


If you do not have a scanner try Autozone, Oreillys, or Advance autoparts. They will scan for free.

Check your water sensors for the Cold start routine. You should have 2 things there for the Temperature, 1 for the water gauge and the second works the Cold start. Now if the Cold start routine is not getting a reading of the engine warming up, it will not cancel and will stay at high idle.

You also may have a weak thermostat. You do not have to exceed the specs with too hot a thermostat, just one that is working. Sometimes a difference of 10 degrees is enough to keep the phases from clicking in when they are suppose to.

With over 200,000 miles you must have put in 1 or 2 parts by now. It should not take you too long to fix this. I hope my solution is helpful to you.

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