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Trying to lacate the idle control sensor on 2004 ford explorer 4 wheel drive

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The idle air control (IAC) valve on my 4.0 L OHV is on the driver's side of the engine mounted on the side of the upper "plastic" intake manifold.
Removing the valve and CLEANING it does wonders for its operation ability.

Posted on Oct 09, 2010


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Posted on Jan 02, 2017


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1 Answer

What causes low idle on 2004 ford explorer?

Idle speed is electronically controlled and is not adjustable. Possibilities are throttle a.k.a. idle positioning sensor, mass air flow sensor, or vacuum leak. Please check all air intake components for obstructions or leaks first then move on to having sensors checked.

Jun 20, 2014 | 2004 Ford Explorer

1 Answer

2004 Ford Explorer AWD. what could be wrong? abs light is on, 4 wheel drive ligh is flashing, truck is stuck in 4 wheel drive

Sounds like you have an electronic shift diff to put it in 2 or 4 wheel drive. You could have a bad position sensor, or shift motor/linkage problem. Unfortunately, unless you have the diagnostic tool to see which is the problem, it is best to take it too a good tranny shop.

Apr 14, 2014 | 2004 Ford Explorer AWD

1 Answer

Abs light is on, 4 wheel drive is flashing,

Sounds like a bad diff control, or diff linkage. Either way, sounds like you have an electronically shifted diff and the problem lies with that control board, or the mechanical part of the controls.

Apr 14, 2014 | 2004 Ford Explorer

2 Answers

2004 explorer xlt , when start idle jump all the time , what could be the problem? thank you

try checking for a vacumm leak,or throttle position sensor,or idle air control

Aug 23, 2011 | 2004 Ford Explorer

1 Answer

We have a 2004 explorer with the 4.0 flex engine it is idling below 500 rpm's stalls out sometimes and the ac compressor only works while driving shuts off when idling.Just put new plugs in checked the MAF...

Hello and welcome to FixYa!

Try to check the IACV (idle air control valve). If the IACV is clogged with dirt you'll have vacuum irregularities, one good reason why the idle is below 500. If cleaned and problem still persists, then I suggest that you replace the IACV itself for it can be faulty.

Hope this helps and thank you for using FixYa! Have a good one!

Apr 30, 2011 | 2004 Ford Explorer

1 Answer

I have a problem with my ford idleing, it stalls sometimes at street lights. o2 sensor? where is it, how can i find it?

Depending on the engine in your explorer you may have 2,3 or 4 o2 sensors. these sensors are located screwed into the exhaust system, one before and one after the cat converter, if the truck has two converters then there will be 4 sensors. the problem you listed is that it stalls at idle or stop lights, this sounds alot like a bad idle air control valve which is very common on fords,also try cleaning the throtlebody, use cleaner and a tooth bruch open the throtle plate and clean good, if this doesnt help then i would look at the idle control valve. hope this helps.

Jun 29, 2010 | 2001 Ford Explorer Sport

1 Answer

2004 explorer 4 wheel drive not working properly

sounds like one hub is locking and the other isnt.

Feb 03, 2009 | 2004 Ford Explorer

1 Answer

4 wheel drive light

the light is letting u know there is an electrical control fault in the 4 wheel drive engagement motor on the transfer case, the Ford dealer has the special scanner to test this system and determine the exact cause of the light.

Jan 31, 2009 | 1999 Ford Explorer

2 Answers

'02 explorer woes

Ok...several issues,and you won't believe this.......The 4 wheel drive is controlled by the Body computer,thats right,there is a computer that monitors and instructs Body functions like the door ajar sensors.Well,i just finished reading a technical article on a FORD that had no 4 wd,and the transfer case controller would not allow 4wd operation because the BODY computer sensed a door ajar,so 4wd operation was inhibited.They fixed the door ajar problem,a door sensor,the door ajar light went out on the dash,and the 4wd started working again...OK.....Check engine light is the vehicle computer that controls engine and transmission functions(PCM) has detected an error with a system.When this happens,the computer stores a diagnostic trouble code.Have the codes pulled with a scan tool or code reader.Repair the codes,and the Check Engine light will go out.The power windows,i honestly don't know,but HEY...2 out of 3 ain't bad!!

Jul 11, 2008 | 2004 Ford Explorer

5 Answers

Rough Ideal on 2004 Ford Explorer

Open hood and listen for vacuum leak sound. pcv hose is most likley cause.

Btw, I’m available to help over the phone in case u need at

Jun 11, 2008 | 2004 Ford Explorer

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