Question about 2000 Ford Taurus

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Everytime i start it .it revs up to 1500 to 2000 rpms for about 15 to 30 seconds,even if its already warmed up.shouldn't it go right to idle rpm aftrer its completly warmed up?

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  • Ford Master
  • 2,620 Answers

Faulty idle air control valve.

Posted on Oct 11, 2013

4 Suggested Answers

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Posted on Jan 02, 2017

  • 398 Answers

SOURCE: Cold days 94 f-150 high rpm start

probably is a emissions sensor problem, lots of these parts are plastic. check out the throttle cables, lub em wd40. there is a type of valve somewhere on top of engine, it may be cracked, pcv valve stuck. lots of possibilities, almost too much for solution online. something emmissions with an electronic sensor is acting up.

Posted on Feb 25, 2009

  • 1 Answer

SOURCE: 2001 v6 escape rough idle when cold

To update my earlier repair on the 2001 6 cyl Escape: When cold, and when the ignition was turned over but no accelerator pressure given, the rough idle finally returned the P0303 code again when the check engine light came on indicating that it wasn't caused by the plugs or the coil. FYI, I had replaced the intake manifold gaskets during the original repair and just prior to that I had replaced the fuel filter which was very dirty (I cut it open to see).

The repair manual referred to fuel injectors as a possible problem. I have run three tanks of fuel using different injector cleaning products and am very pleased with the results. Cold starts are much smoother and I am unable to coax out the P0303 code or any other code.

My opinion, change the fuel filter, use a fuel injector cleaner for a couple of tanks, change the plugs if the problem still exists. The coils were not the problem on my vehicle.

Posted on Mar 09, 2009

chuck943
  • 783 Answers

SOURCE: 2007 crown vic 4.6 l idles high on startup

This sounds like a normal condition.What happens is the cold start emission reduction component monitor(software program in the computer) is running.
Cold Start Emission Reduction Component Monitor
The Cold Start Emission Reduction Component Monitor was introduced for the 2006 MY on vehicles that meet the
LEV-II emission standards. The monitor works by validating the operation of the components of the system
required to achieve the cold start emission reduction strategy, namely retarded spark timing and elevated idle
airflow.
When the CSER strategy is enabled, the idle air control system will request a higher idle rpm, elevating engine
airflow. While this CSER elevated airflow is requested, the low airflow test compares the measured idle airflow from
the MAF sensor to the commanded idle airflow from the idle air control strategy.


Posted on Apr 02, 2009

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My car is over revving going to 1000 rpm at idle what is it please help Audi A3 s line 2.0 tdi


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1997 acura cl 2.2 revs up to 1500 rpm and down to 1000 rpm just several seconds after start


Cars are design to run at a higher idle at start up to warm them up quick. There is a sensor that reads water temperature and tells your car's computer how fast to idle. Your RPMs seem slightly high but not out of the norm. Does idle ever drop to around 600/800 after about a minute? If not, your engine temperature sensor maybe defective.

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1 Answer

Everytime i start it it revs up to 1500 to 2000 rpms for 30 second or so.it should only do this when its first started when cold,not when its already warmed upped right?


Yes your right! Sounds to me the idle air control valve is stuck open just a little to much which would cause the computer to feed the engine more fuel and cause this high rpm problem.Take it off and try cleaning the carbon out of it so that the piston sits flush in its seat then reset the computer by disconnecting the ground cable on the battery for 30 seconds.If all fails you will need to replace the IAC valve and reset the computer afterwards.

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89 Chevy Sprint takes about 5 minutes to warm up to be able to drive away or it stalls when I give it gas. The engine will rev up for 3-4 seconds then drop down and almost stall and then rev again during...


Plug the vacuum line you unplugged and the idle should come back. Change your air filter and the map sensor. check for correct coolant level and replace the coolant temp. sensor. This sensor affects cold starting and idle through the ECU (open loop mode, rich fuel mapping and 1200 rpm idle) It should go to closed loop mode in the ECU once engine warm up is achieved ( lean fuel mapping and normal 900 rpm idle). Do not unplug anything else till you perform an OBDII scan of the stored fault history

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2003 Chevy Cavalier 2.2L - RPMs Surge & Drop Out - Stalls In Idle


it sounds like its drawing air into the inlet mannifold

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High rev, rough idle in golf


If your car is fuel injection,try changing the cold start temp sender.

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When I start the engine from cold it runs on high revs too long


Hi ..... This sounds as if it's fitted with an automatic choke, as long as the revs drop when it's warm there is nothing to worry about. The indication when these start to go wrong is that the car won't start when cold ................ even then any decent mechanic can fit a normal/manual choke.

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