Inconsistent idle fix, cleaning the IAC on a F150

[@Mywalkingblog]

Thank you so much for this video. My truck’s idle was surging and nearly dying. I did as you described here and it worked like a charm.

[@bbbjim1fixedit]

Glad to hear

[@dubya2514]

Same problem, it was so old and crusty I just replaced it anyway, one thing to note: if you go around the right side of the throttle body you can pull it right out and unplug it way easier than the left side. Thanks 👍

[@bbbjim1fixedit]

Good tip

[@BobbyGuidry-h3d]

Hey, just wanted to tell you thank you man that really helped a lot. I thought I was about to have to spend all type of money thank you.

[@bbbjim1fixedit]

Glad I could help

[@markvincent2856]

Thanks for help... I cleaned it and works fine.. I was having fast idle. Didn't have cleaner so used pb blaster.. thanks again for your help

[@bbbjim1fixedit]

Glad it helped

[@Googstuuf]

Wait what? My idle is a tad high in my opinion. It's runs smooth starts right up. I already used intake cleaner. Did do anything really. Plus it's horrible on gas. No lights are on. Can u advise

[@markvincent2856]

@@Googstuuf I cleaned the IAC on my truck... it was almost 5grand at idle... took off and cleaned it ... back to normal...

[@Googstuuf]

@@markvincent2856 I did too but it seems like it's idling a tad high. Not running bad or anything but just seems like it's struggling far as trying to pass some one but it's a 6cyl so maybe it's in my head idk. Also horrible on gas .

[@No83858]

​​@@Googstuufdid you try cleaning your fuel injectors? Or checking the sensor?

[@scottb7444]

Thanks for the video,my ac was making the truck stall way to low idle, thanks!!!

[@bbbjim1fixedit]

Glad it helped

[@tehjosheh]

Helped me out a ton, thanks for the video!

[@jessenuno4228]

was your truck shaking as well ?

[@tehjosheh]

@@jessenuno4228 I did not experience significant shaking

[@kalebhorton656]

Can we use break cleaner if we dont have the air intake cleaner?

[@abinadyoiram]

Had the same problem, did exactly as you mentioned and got it fixed! Thanks a lot

[@bbbjim1fixedit]

Great to hear!

[@123-olmngresx]

Dont clean the IAC just get a new one its probably old anyway. Cleaning the throttle body definitely helps but clean the EGR areas too.

[@BOSS_805]

This is good information that will help a lot of people

[@bbbjim1fixedit]

glad you liked the video

[@glenndavidson2943]

ive done this maybe 4 times to my f150. At least I know the problem.

[@chargerscurt]

You can buy a new one for about 55 bucks

[@anderssoncedillos3835]

In my case the revolutions go up a little when I turn on the AC and they get normal when I turn it off, do you think this may help?

[@bbbjim1fixedit]

The engine is supposed to increase in rpms when the air is turned on to ensure the engine does not stall when the a/c compressor kicks in.

[@mofopopo437]

Sometimes the spring where's out even though we do are best to clean it.

[@kahnercalleros8249]

Is this problem known to f150?

[@kimberlyedgins3593]

Do I need to disconnect battery prior to removing iac? Thanks in advance

[@bbbjim1fixedit]

it is not necessary, repair manuals tell you to do so to ensure no accidental start ups.

[@engr.inigo.silva2000]

Mister, great video. But the matter in my F150 2001 is the sluggish acceleration at total stop. So, could it help to solve this matter cleaning that components according with the video?

[@bbbjim1fixedit]

you may wish to look closer at your vacuum hoses for leaks especially on the back side of the engine. I wish you the best on your repair

[@engr.inigo.silva2000]

@@bbbjim1fixedit thank you, let check out this.

[@luisponce1472]

Do you have to Disconnect the Battery before Installing The IAC valve?

[@bbbjim1fixedit]

I did not disconnect the battery. For lability reasons most shop manuals state to disconnect the battery. I wish you the best on your repair.

[@locknload9143]

What year? What side is it located? Also, can it be tested? Thanks

[@bbbjim1fixedit]

This was done on a 2000 5.4L, it is located on the top of the engine near the fire wall. I am not aware of any tests for this part. I wish you the best on fixing your vehicle

[@k.padraigokane1472]

I have a 2000 manual. when I push the clutch in, the rpm will stay up. My mechanic unplugged the IAC and that issue went away. Of course it bog out a wee bit at idle, but the racing RPM issue went bye-bye. He said, "bad IAC, or bad computer." Think he's right?

[@bbbjim1fixedit]

It is hard to say since one would need a rather sophisticated scan tool to pin point the issue. Removing the IAC and cleaning it is rather inexpensive and may well be worth a try. I wish you the best on your repair.

[@travisburt2322]

I tried it. Didn't work. Replaced it. Nothing. Still idles choppy. Any other options?

[@albertdelaney6814]

​@@travisburt2322 did you find the problem , I have a 1999 f150 , and has a mind of it's own , normal idle rpm is 600 but at different times it jumps up high rpn ,

[@kennyherrick8379]

Is there 2 IAC on a 98 f150? What is the one on fire wall above brake booster

[@bbbjim1fixedit]

I am only aware of the one IAC. I no longer have the truck and I am unsure of the one by the booster. I wish you the best on your repair.

[@kennyherrick8379]

@bbbjim1fixedit it is the iac purge valve. The hose that comes off that part and runs to the back of the top part of motor. It has a Crack in it the size of around 2 inches. I rigged it it seem to keep it from sounding like it's going to die. Now it's figuring out what it's called. It has a green tip thing at the end

[@bbbjim1fixedit]

you may wish to do a Google image search with a picture, that has helped me out in the past. Thanks for the update@@kennyherrick8379

[@kennyherrick8379]

@@bbbjim1fixedit and thank you as well for the response. Have a blessed evening

[@reneramirez8922]

I have a 2001 ford f150 5.4 only at cold starts the rpms drop then comes back up again. No check engine light, no codes. First I cleaned the throttle body with new seal gasket the issue went away. After a few months it came back and I cleaned the idle air control valve put it back on and also went away. A few weeks after it did it again any help on what could it be ti get it fix thank you.

[@roxannekopecky1353]

Any luck?

[@reneramirez8922]

I replaced the IAC and after that it turns on just fine.

[@porterbennett7041]

I have a question did your truck feal ruff when at normal temp Like did it feal like it had a ruff cylinder or no?

[@bbbjim1fixedit]

It was only erratic when stopped, I didn't notice it when driving. I wish you the best on your repair

[@williamisabell9539]

Funny my ABS is out too.

[@waynebastianelli8391]

On that asap same as mine big difference thanks

[@bbbjim1fixedit]

glad to help

[@keeks2freakssseqz229]

Question: do you have to disconnect the power ?

[@bbbjim1fixedit]

The electrical connector has a locking feature, I can't remember if it is the style you push down on while pulling off or the type you lift the tab up while pulling off. I do wish you the best on your repair

[@pinacate8975]

What is the normal RPM in park position MY TRUCK IS A LITTLE BIT OVER 500 RPM.

[@bbbjim1fixedit]

depending on the temperature 500-700 rpms is normal

[@pinacate8975]

@@bbbjim1fixedit thank you so much....is always in the middle

[@reneramirez8922]

I was thinking of just replace the idle air control valve since I left the same one on again. O'Reilly told me that it could be the throttle position sensor. If anyone had this same issue and got it fixed let me know pleace .

[@randyu8688]

What was it?

[@fsca72]

iac only effects idle. A bad tps usually causes things like the throttle not to respond correctly when you press on it or one most common the engine will rev real high on its own in park or neutral.

[@JDIZZY024]

My 05 f150 stx will rev on its own sometimes any suggestions?

[@bbbjim1fixedit]

you may wish to check for some check engine codes, several things affect idle: cracked hoses having vacuum leaks, MAF sensor, EGR issues, I wish you the best on finding your issue

[@MegaErick2007]

Could be many other problems, but this also an other one the MAf sensor

[@bbbjim1fixedit]

thanks for the tip

[@tonymctony4551]

My engine revs up and down at the red light like im trying to race someone and bogs out if trying to accelerate. Runs smooth once u play with gas pedal up to speed.

[@bbbjim1fixedit]

you may wish to take a close look at your vacuum hoses for leaks. I wish you the best in your repair

[@tonymctony4551]

@@bbbjim1fixedit do you think its o2 sensors? It runs clean, no smoke out of exhaust

[@bbbjim1fixedit]

@@tonymctony4551 a faulty o2 sensor would trip a check engine code

[@ianb156]

Did you figure out a solution for this tony?

[@jarodbrown1529]

@@ianb156 did you have the same issue? My 03 v6 does the same, my buddy says it could be the idle air control valve but I wasn't sure.

[@stevendodge814]

When I bought this truck (2004 v6 manual f-150 xl) and he said something about a vacuum problem and the heat only runs through the defrost vents, do you think the iac is the problem? It isles between 790-1000 a lot

[@bbbjim1fixedit]

what i believe he was talking about is the blend door actuator (changes the location of the heat). That not working would not affect the idle. If cleaning the IAC does not work try cleaning the MAF sensor, I have a video on that. I wish you the best on finding the idle issue

[@Twilkins20]

I could be a broken vacuum line too that happened on my truck thats what it was good luck

[@Big_John_C]

There is a vacuum line under the throttle body that also connects to the PCV valve on your passenger side valve cover, the elbow that connects it to the throttle body dries and cracks causing a vacuum leak that makes the truck idle high and effects other things that require vacuum to operate...

[@haydentrozzi264]

Is it the same for a 4.6L?

[@bbbjim1fixedit]

I believe so, and I wish you the best on your repair

[@jakefx4]

the 4.6 is actually easier, it’s right on the top

[@Angell-Angell]

Looks like the helper did all the work to me!!..

[@bbbjim1fixedit]

she is awesome at turning wrenches, and I wish you the best on your repair

[@tangleass]

And you stay classy San Diego

[@reygenabraham7564]

I bought new one..but did not fix the problem

[@PremiumFuelOnly]

@Reygen Abraham Probably a vacuum leak somewhere.

[@dirtberger4533]

Thank you so much. 😀🏁

[@bbbjim1fixedit]

You're welcome!

[@michaelvorgang2785]

Q

[@thefaith6891]

Mine still vibrates what else could it be?

[@JakeNaughtFromStateFarm]

Check for a vacuum leak. Maybe a loose or cracked hose.

[@michaelbidwell4210]

I started having a low idle issue then a vibration issue that came shortly after. I was really sure the 2 problems were related. It turns out my harmonic balancer was bad and completely separated a few days later. Unfortunately it put a huge hole in my timing chain cover. Not a good thing for sure

[@rickytovar226]

Anyone had it stall n thoe wax the issue ?

[@JoseyMcatee]

Tryed this did not work long cleaning it made the problem wrost started humming after 2 time cleaning replace at parts house and i get a lifetime warranty.

[@pauloremez2954]

Timing Chain Tensioners if Not leaky fuel injectors (Cylinder #5 probably)

[@JuanLima05]

Hi my f150 v8 triton. Has low and fluctuating idle but 1 click start.

[@bbbjim1fixedit]

You may also wish to look for a vacuum leak on the intake hoses, if you have a check engine code for lean bank one or two. I wish you the best on your repair

[@2_Sleazy]

thank you

[@bbbjim1fixedit]

glad to help

[@MarioLopez-ml8uw]

Thanks 👍

[@bbbjim1fixedit]

Welcome 👍

[@ingascheib8873]

I have no idea where that is.

[@bbbjim1fixedit]

top rear of the engine

[@barbmalone4415]

I have replaced the cam shaft sensor and one next to it, throttle position sensor. Still does same thing, when you start it makes a knocking spinal noise. Give it gas goes away, if I am low idle it will start making the spinal knock noise til you give it gas in neutral. Anyone have any ideas. 2010 f150

[@bbbjim1fixedit]

you may wish to take a closer look at your vacuum hoses for leaks, especially if you have bank lean code. I wish you the best on your repair

[@MrTootybooty]

Did u ever fix ur problem mine is doing same thing

[@MrTootybooty]

Mine the same. Revs up and down real bad