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Over Revving when you start up does not drop at all not using car at all

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Scan the computer for trouble codes. Suspect the Throttle Position Sensor, Mass Airflow (MAF) Sensor; see if any trouble codes help identify the problem.

Posted on Jul 23, 2013

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Posted on Jan 02, 2017

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1 Answer

Replaced fuel pump but still revs up the engine and shuts off?


There is gas, the starter is fine, the battery is good. It doesn't matter what temperature the engine is or how long between starts but if I rev up the engine while cranking it starts okay. Rarely I have to rev at stops or the idle drops too low and stalls. If I punch the gas very quickly it revs and drops quickly and then stalls. Starting has a success rate of about 50% without revving. If it stalls, I must rev the engine to start.

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that is about the norm for a cold start .life must start someplace and get the alternator running it used to be called fast idle

Apr 28, 2015 | Cars & Trucks

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Revving up and down


Faulty idle air control valve.After you replace it you will need to reset the computer by disconnecting the ground cable on the battery for 30 seconds then re-install it and start it up it should run fine.

Aug 01, 2012 | 1993 Oldsmobile Cutlass Ciera

1 Answer

I have a 2002 durango 4.7. I have a hard time starting it hot or cold.when i get it started it idles fine for a few minuts and then rpm drop and wants to stall out,The truck runs great wile driving but...


First off, how new is your battery and how many miles on the D? Dodge vehicles are very sensitive to a failing battery. Have it load tested, and if is the least bit flaky, replace it.

After that, the TPS or throttle postion sensor is your next.

As far as the revving up and down above 3000 rpm goes, that is the PCM protecting the engine from over revving.

Aug 04, 2011 | 2002 Dodge Durango

1 Answer

2004 kia sorento 2.5 diesel automatic started this morning engine raced into red line I had no control accelerator pedal made no difference. switched off key. Tried again same thing. Eventually put it into...


This could be a number of things , get the OBD codes read as should give code for the faulty part (hopefully), it is a common faulty with this engine , try this site for more info from those who have had the same happen
Over revving Sorento

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1 Answer

Revving problem


the car need to go through a relearn cycle you will have to drive for some odd miles and it will go back normal.

Dec 22, 2008 | 2003 Honda Civic

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