Ex won't idle! | Ford Explorer Forums

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Ex won't idle!

headrush

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Joined
May 26, 2002
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City, State
Mount Pleasant, SC
Year, Model & Trim Level
2010 Nissan Frontier SE
I know little about the mechanical aspects of my vehicle, so if I seem like an idiot for asking about this, that's why.

For some reason or another, my Explorer will not idle. It ran fine earlier today, but now when I go to crank it, it won't stay on unless I keep my foot on the gas. I let it off, and it just goes dead. I've got plenty of oil and all...could it maybe just be trash in the fuel line or what?

I was just thinking that I left my car in a parking lot nearby when my date picked me up last night (this was before it was giving me problems), and although I highly doubt it, some idiot could have put something in the gas tank while I gone just to be stupid or funny, but who knows.

I'm really worried about this and would like to get back on the road as soon as possible. Any feedback would be greatly appreciated.
 



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It's the IAC. Clean or replace.
 






Ok, three questions:

1.) How much to replace?
2.) How easy is it to clean or replace?
3.) How would I go about doing it?

Thanks.
 












I did a search, I know the drill, thanks.
 






Ihad the same exact problem 3 days ago. Replaced the IAC for 50 bucks, now she runs awesome....Ford wanted 180 to replace.
 






Originally posted by 99ExplorerXLT
Ihad the same exact problem 3 days ago. Replaced the IAC for 50 bucks, now she runs awesome....Ford wanted 180 to replace.

Since the part costs about $80 from the dealer (actually a little less) and it takes an unskilled mechanic about 15 min (it took me about 5 min), that works out to a labor rate of $400 per hour!


I'd try a different dealer next time. :p
 






I never have, nor will I ever go to a dealership to have any of my vehicles repaired. There's a very trustworthy mechanic right up the road from me who's done just about all of my repairs, and won't rip me off. Heck, he even takes my car back to my house for me when he's done.
 


















Originally posted by Scrap Iron
What the heck is an IAC?

Idle Air Control Valve

also known as ISC (idle speed control)

attachment.php
 






Thanx for the crash course. I really appreciate it. It made finding and cleaning the IAC very easy. The only problem is that it didn't solve the problem. This morning I was in the same situation with having to keep one foot on the gas and one on the brake. I was also told it might be a tps sensor. Anyone one know anything about that? Where to find it? Where to get a new one? Or how much a new one costs? Do you even think it's the problem?

Thanx
Scrap Iron
 






Unfortunately, sometimes the IAC must be replaced. Once you have exhausted your troubleshooting options you may want to consider replacing it.
 






Originally posted by Scrap Iron
Thanx for the crash course. I really appreciate it. It made finding and cleaning the IAC very easy. The only problem is that it didn't solve the problem. This morning I was in the same situation with having to keep one foot on the gas and one on the brake.

That is a classic symptom of an IAC that is not working correctly. I would check the wiring at the IAC to make sure you are getting a signal. See this thread:

Strange Idle Problem






I was also told it might be a tps sensor. Anyone one know anything about that? Where to find it? Where to get a new one? Or how much a new one costs? Do you even think it's the problem?

Thanx
Scrap Iron


The TPS (throttle pos sensor) is a potentiometer that gives a voltage signal proportional to the throttle position. It is located on the throttle body. You can get a new one at most auto stores or the dealer or fordpartsnetwork.com. I don't know price, I'm guessing between $50 to $80 at dealer.

I would test it before replacing it. See this link: Removed Link because autozone.com changed all of the links to the Explorer manual on their website
 


















Bandwagon Time--no Idle; 99 Xlt

:exp: The idle of my Ford has let me down. Just tried to start my 99 XLT up and it will not start. Turning the key and listening to it want to turnover is not a pleasant sound. After putting my foot on the gas, turning the key and listening to it start made my minute--as soon as I took my foot off of the gas it shut down again. It will not start without me depressing the gas pedal at the same time. I am no mechanic but I am mechanically inclined so if anyone has an idea please let me know. Military member in need of your expertise. Thanks.
Ed_texan
 






Hi Ed_texan, it sounds like your IAC valve is not working at all. The purpose of the IAC (Idle Air Control) is to let in enough air so that the truck will idle when you don't have your foot on the "gas" pedal.

Here is a link that shows how to remove and replace it. IAC valve
 






Check for vacumm leaks. A hose may have come loose.
 



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Explorer 1, Sentra 0

Check this out.

I just finish changing the Idle Air Control valve on my wifes' Exploder because it just wouldn't idle unless you held the gas pedal down and my she was getting pissed at me for not fixing it. After I change it, the tuck is just running like **** so I figure I'll take it for a blast and let it run a bit so the computer and sensors can get the new readings (or whatever they do) and hopefully it'll smooth out.

So I head down my street, (Pelham Parkway, Bronx, NY) it's a residential area, three lanes in each direction, 35 MPH posted, divided by a grassy mall. I get down to the end of this road where it changes from city streets to highway. The residential area ends, three lanes go to two, the speed picks up to a posted 45MPH and the grassy mall that separates the east and west bound traffic ends and the lanes get closer together in order to go over this narrow drawbridge further down the road. This is a good mile or so strip with no traffic lights or speed traps. Perfect spot to open her up a bit.

This little f'in car, that's in the right lane and waaaay up ahead of me, begins to slow down. I see his brake lights go on so I take my foot off the gas. It's common for people to make U-turns around this area because the grassy mall does end, and people always use it as a spot to turn around. Now, I'm cruising in the left lane at about 75, on my way to winding her up, trying to "blow out the old truckâ€￾. I see this guy and think to myself, "Oh ****, I better slow down 'cause this guy looks like he's about to do something stupid". I start breaking real fast and get down to about 25 when this jack ass throws on his left turn signal and just decides to whip a U-turn right in front of me as though I was f'in invisible.

I hold down the horn, slam the breaks as hard as I can (anti lock sucks) and start to turn to the left with him. I went over into oncoming traffic (no one coming, thank God) to avoid him but I just couldn't do it. I was going too fast and he was too far into the U-turn, and into my path for me to stop in time.

I end up blasting him in his drivers side fender, right after his door, with my pass side front tire and bumper and ripped off his fender and headlight assembly bent and tore up his hood and bent his front wheel into a 75 degree position. I only wish I had my digital camers on me. It was an amazing how badly my truck spanked his car. He was driving a brand new Sentra. It still even had the temp tags on the back window. (He was from Jersey, Imagine that)

I was furious, but I stayed cool. I noticed he had a little girl in the car with him (maybe 7-8 years old) so I asked about her and he said she was fine, he said he was fine too. I looked at his car and looked at my car and decided that any beating I would give him (verbal or otherwise) is nothing compared to the ass kicking he's going to give himself for doing such a dumb ass move. He asked me, "didn't you see my signal?" and I told him, "sure I saw your signal but who the #### knew you were going to whip an illegal U-turn right in front of me in the middle of a highway?!". He just shut up and went back to his car. Really, what could he say?

My wives truck has a cracked grill by the signal, signal scratched, some scratches on the bumper and the flared part of the fender (Eddie Bauer model) and a small dent right behind the signal. The rim also got whacked and it looks like I may have something bent because the wheels now look out of alignment although it does drives exactly as it did before, no different. This guy’s car left on a flatbed.

So, NYPD came, filled out the report, and I drove home to break the bad news to my wife. But I told her, "Honey, at least it doesn't stall anymore" She didn't find the humor in that at all. Now it’s off to the body shop for the estimate and my wife will have to drive my Impreza for a week or so while her truck gets fixed. She calls my car the go-kart. She’s really pissed at me.

Now I'm going to have to buy her that laptop she's been wanting....
 






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