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My 2012 prowler 700 idles too slow how do speed up the idle

1 Answer

Rigger DeBusk

Cars & Trucks Master 1,811 Answers
Posted on Oct 20, 2019

Rigger DeBusk

Cars & Trucks Master

Joined: Aug 28, 2012

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If it's idling too slow, the problem could be in the throttle advance mechanism. It's a little plunger connected under the throttle arm on the MAF unit to speed the engine upon cold start and AC use. See if it's moving when you first start the vehicle. The computer automatically places the engine into cold start mode when you turn the switch on and touch the throttle to allow the plunger to move out if it's week. It could be that this plunger is just disconnected from the power. Check that it's plugged in.

5 Related Answers

Anonymous

1010 Answers
Posted on Jun 22, 2008

SOURCE: high idle speed

Replace the sensor.

Anonymous

6 Answers
Posted on Oct 12, 2008

SOURCE: erratic idle speed

Have the fuel pressure checked. Could be an erratic pump or pressure regulator.

Poppascott

Anonymous

93 Answers
Posted on Dec 13, 2008

SOURCE: Idle fluctuates

Its could be a few things. Most likely cause is you IAC (Idle air control valve) If this valve gets clogged up with carbon it will cause a idle surge on cold starts like you are describing.

Next your FITV (fast idle thermal valve). When the hot wax inside of this valve starts to wear it will cause a idle surge on cold starts.

Anonymous

12 Answers
Posted on Feb 07, 2009

SOURCE: rough idle / engine surges until power is applied

Sounds like a possible vaccume hose leak?

Anonymous

236 Answers
Posted on Mar 23, 2010

SOURCE: 2004 chrysler sebring idle speed is too slow. HOw

why do you want your rpms higher while idling? you don't want them high because your gas bill will reflect that. slow shouldn't matter but if it's dying while on idle it could either be your mass air flow sensor or your fuel filter being clogged

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I have just recently purchased a 2012 mitsubishi colt clear tech , and the slow idle speed sits at a shade under 1000rpm , is this too high and if so is it adjustable ?

Normal idle speeds on modern cars are usually between 600 and 1000 rpm so the idle does not seem too fast. Most modern cars now use electronically controlled throttle bodies instead of carburettors and most throttle bodies are not adjustable.
The idle speed can run higher when the engine is cold as more fuel is added until it reaches working temperature. Let the car warm up to it's working temperature, usually about 10 minutes at idle.
Keep your feet off the pedals and check the idle speed. Listen to the engine. Does it sound like it is 'racing' like your using the accelerator pedal or is it struggling and almost stalling? If it is an even steady idle it is probably set correctly. Get a good mechanic to look at it if your worried.

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

Click the link below:-----

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http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

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http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html
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It can be issue with IAC( idle air control valve) causing the problem.

There are many other possibilities causing these idle issues. Engine idles rough.

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:-----

Ford Expedition IAC valve replacing

http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

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://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html

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

------------------

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http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

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http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

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http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html

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