How to Clean a Throttle Body and Idle Air Control ( IAC ) Valve - Quick and Easy

[@nataliecontreras1585]

My instructor used a lot of your KZbin videos in my auto classes in college. I’m glade your still making videos. I have a 2003 Toyota Camry V6 and my cars giving me problems with air flow. I replaced the MAF sensor, but I’m realizing the IAC valve is dirty and now I need to go back under the hood and clean everything. Thanks for the videos and spending your time to help others. ❤

[@hardcoretrout]

Well done Sir. Your ability to convey pertinent information in a simple way is top notch and gives others confidence to tackle these tasks.

[@reallybigtr33s93]

Best explanation I’ve heard. Been having idling issues and plan on cleaning the IAC valve but had no clue what it’s purpose was fully

[@neppy5]

best explanation I've seen of how the throttle body and IAC work from one of my favorite youtube guys, thanks for this!

[@myRatchets]

+neppy5 np, thanks for your comment. I appreciate it. cheers

[@myndiwillis1996]

Most definitely 👍

[@donellechitolie6755]

P

[@toddmuddywaters]

Thank you! Very well done video. Especially the explanation at the beginning about how the throttle body and IAC work and the types of issues that result when they get dirty or fail. Very well done!!!

[@wastedcentury1805]

I appreciate that you show how to take it apart. So many car goofs on KZbin totally skip that step, as if every viewer is an expert

[@kelhawk1]

All those good things everybody else says *plus* you are easy to listen to, with a clear and pleasant voice. Well done!

[@myRatchets]

Glad you like the video, thanks for commenting.

[@michiganwheels3326]

Fantastic job! I really appreciate how-to videos that get right to the point. No wasted time explaining it. Very informative and helpful. A+!

[@Gilbert-l9r]

You detailed everything exactly the way it's supposed to be detailed fantastic presentation

[@bigrontheexception]

I'm glad that you do videos on vehicles other than 4 cylinders. I get sick of all these KZbin mechanics who have 90% of their videos on the easy to work on 4 cylinder engines

[@chanceflynn3290]

You are great at explaining how things work and have helped me so much so thank you🙂

[@David-pj2ro]

You are a very good teacher, thanks for all your great videos

[@clayton7443]

Really good explanation! I appreciate a steady camera and good angles. Thanks!

[@gabepim3496]

Yeah deff I have seen alot of mechanical video ..but from you sir I have learned alot ..and that's golden info for me..thanks dude !! Best videos hands down

[@btiller44]

This video was awesome. Not sure if this is my problem yet, as I need to pull this open and take a look, but you were straight to the point and showed everything really well. Definitely earned a sub from me! Thanks again!

[@dethsyndrome]

I cant wait to clean my throttle body tomorrow

[@wessonsmith1373]

Excellent video. No fluff. Great job.

[@eugenebruno1481]

This guy's videos never disappoint

[@don.timeless4993]

does throttle body cleaner do the same & clean valves?

[@Joshua-rb2hv]

Thank you for actually explaining what the iac does made me totally understand what to look for and clean thanks so much

[@ScottsFormula350TPI]

awesome informative and to the point. Great job i intend on watching every one of the videos you mentioned dealing with idle

[@xXxRadiotrashxXx]

Noticeable difference after cleaning my car, thank you!

[@ethanrbutler]

Thank you again. I miss you 🥺

[@deebeeisme]

Thank you. you saved me a lot of trouble. My truck is almost identical to the one you worked on.

[@gwendywatkins7848]

I appreciate the extra information such as; Don't manually clean your Throttle valve if it is controlled electronically.

[@tashalousdadful]

That really makes no sense at all. Should I just throw out my electronically controlled throttle body because it's dirty? No I cleaned it and car runs good as new.

[@joeruiz9029]

Great video guy. I’m have some problems with my idle on my 1992 Dodge Ram50 pickup and it just might be the ISC valve. I’ll remove it and clean it. Thanks for a great informative video.

[@user-ju3od5gy5q]

You do a great job on your videos. Very helpful.

[@SkyRiderJavelin]

Excellent description and explanation. Very useful content thanks very much

[@diegotorices5018]

Made it simple to understand, regardless of what vehicle. Well done.. Thank you !

[@noliuntalan5314]

step by step explanation how to clean a throttle body.. hope next time around show us how to clean a electronically controlled throttle body.. or kindly share to me how to open the gate/butterfly the best way by not damaging the calibration of the electronic control system .thanks . stay safe . God Bless

[@anti0918]

Thanks for the tip about electronic throttles. I've cleaned the electronic throttle plate on my '06 Accord without a problem.

[@myRatchets]

+anti0918 good to hear, did you move the throttle plate?

[@anti0918]

RatchetsAnd Wrenches Yes, I did move the throttle plate to clean it, as I wasn't aware of the potential problem you mentioned. But I haven't experienced any problems with the throttle since then.

[@jfontini1]

Thanks again Ratches and Wrenches for sharing your knowledge, Cool Deal!

[@jenmiller736]

Thanks for posting! I like your videos cuz I am learning actually what these parts do and how they work.

[@rogersy7209]

Thanks for very good explanation and easy to understand.

[@txnetcop]

Outstanding video...very helpful...especially the hints!

[@Dwolfson22]

Nice video. I'll try this before pulling the throttle body and cleaning it more thoroughly!

[@flightofthefatman]

Do yourself a favour and subscribe to his channel if are watching his videos for the first time. His videos are always to the point and easy to follow that are explained in a logical and diagnostic manner.

[@alirazmjou2149]

Thank you so much for this video سپاسگزارم

[@oljames1687]

Thanks , I may have found out what is wrong with my Aunt's Kia !! Great explanation of the Idle Air Control...

[@myRatchets]

+Ol James np, hope it solves your issue with the Kia. If it doesn't watch the next video I am doing on Vacuum leaks, that might do the trick. Cheers

[@oljames1687]

Thanks, I surely will...

[@mr_ganchot]

Very helpful video, thanks. I did it without ever having done any repairs on any car. However, did not work for me. Also, had accidentally left the hose on the left side disconnected. Only noticed it after I drove around the block to check how the car was running. Any ideas if that has caused any damage?

[@mikebrown1074]

Thanks Brother! Great information!

[@ncooty]

Thanks. It would have been useful to see more clearly how much the IAC is supposed to actuate in order to determine when the IAC needs to be replaced (vs. just cleaned).

[@dnytv1896]

thanks very educational thats my car problem now, i learn a lot of this video.

[@nhubui7976]

one of the best video i found

[@VOOODOOO37]

great description of the symptoms, best video out here thanks!

[@philr9407]

Thanks For Taking Me To Class I needed This info ! Nicely Done :)

[@zeeshansaad561]

sam one can halp me plees I have mitsubishi lancer 2004 model and I need halp from a good mechanic advice my Wats ap naber is 00923016642456 plees contect me

[@kenjones2819]

if you have electronic TB i was told by a pro ((that i trust )) remove it from car b4 cleaning

[@jaythologymechanic5570]

Thank you that you video on how to locate the iacv 🙂 God you Bless sir😇

[@tombstone2826]

Great video ! Fixed my problem ! Thanks !

[@bennieverster]

Would be impressed if u have an answer to this one. Tata Indica SLi 2008 1400 Petrol. After a Clutch replacement that have nothing to do with the fuel injection system, I have the Following symptoms: Engine start first time but idle to High then after 10seconds go down to normal. When driving the engine runs perfect until you stop. The idle surge three times between 1000 and 2000 rpm then a last time to 3000, sometimes 3500 rpm then slowly goes down to normal and stay there. If I ref it up again it comes down to normal, but a little slow but not surging. But just drive 10 meters and same thing happens. I replace the Idle sensor with a new one, making it ever worse

[@inamrehman8709]

thank you for the video, can you please mention the location of idle control valve in toyota corolla 2010 model? I need to clean it..

[@usa1033]

Great video and the process well explained. Thanks..

[@kmichaelthompson]

Incredibly helpful. Thank you. Great job.

[@myRatchets]

Glad you found it helpful. cheers

[@jasonliwai8576]

Mahalo from Hawaii!!!! Very useful I will put it to use and hope for the best right now I am having problems with low idle as I come to a stop light with my air conditioning on it is a 2008 Toyota RAV4

[@waynep343]

carbon build up reduces the amount of air leaking around the throttle blade requiring the idle air control valve to open farther.. this limits the amount of idle control ability the idle air control valve now has... so it might not be able to open far enough to maintain idle speed at all conditions.. normal idle air control is 20 to 50 steps back with the engine warmed up. cold start would be 80 to 90 steps back.. these usually have about 115 steps max..

[@Good-Enuff-Garage]

Excellently Explained!

[@dagee234]

thnx - very helpul. my '90 nissan d21 idles smoothly but way too fast. Can't find manual or any info on google/youtube. I believe k24e engine. However it's so old, i'm sure it can't be that hard to adjust if i had some info. Can u point me to some resources? there's 1 adjust screw on this gizmo with a REALLY ridiculously stiff spring that cams and stops the throttle from turning too far. And 1 adjust screw on the carb side next firewall.

[@hardkore360]

your videos are the best!! thanks for taking the time to create/post them

[@myRatchets]

+hardkore360 np, glad you liked it. cheers

[@genesis7552003]

very informative, information, thanks, ima watch it again ,cause I'm kida slow ,good job brother.

[@gasolinaquema8416]

Would it be ok just to use a micro fiber towel to clean the throttle body and IAC valve? Of course using the spray as well

[@daviddowns7552]

and can clean pvc valve too. it helps mine alot.

[@sarahsmith4617]

Fantastic video, love all the details, thanks for sharing!

[@sarbdhillon4276]

hey love your videos i probabably saved over thousands of dollars by watching u r videos you'r allright

[@wholeNwon]

Really good, as usual. Of course, my car has an electronic throttle control.

[@clw201]

Turn the key but don't turn engine over put a weight or something to hold gas pedal down and it will open the throttle body plate up for you and then you can clean freely

[@realobiewan2918]

IAC is normally in a closed position, fully blocking the passage. Good to know. I've got a truck that won't stay running.

[@coolelementskater16]

Awesome I am cleaning mine today!!!

[@jac1793]

I just disconnected my throttle body and cleaned it without realizing the IAC was attached to it, I also disconnected the coolant lines going into the TB. They are currently plugged, but am I ok to drain the system of coolant while the TB is still removed from the car? Any issues to come when I need to bleed the system? Thanks.

[@LeviRules-mi1im]

First thing to locate. Air filter box, but what if you dont have a air filter box anymore and the filter is located behind the front bumper now and so you have to take your entire front end apart to see the filter without taking it out of the vehicle

[@Nodeagent]

Hey Ratchets and Wrenches thanks for all of your help. Your videos are awesome. I have a 93 civic that's been idle surging occasionally. I removed the throttle body to check it out. I also found some small cracks on three different vacuum hoses that all connect to the throttle body. The plunger on the idle air control valve does not seal all the way when resting. Could this mess with an idle surge or could it just be a leaky vacuum hose? The IAC is a pretty expensive piece so I'm hoping it isn't the problem.

[@Nodeagent]

also, it usually idles fine on a cold start. Also, when you press the brake pedal or move the steering wheel while idling it can cause it to start surging a little bit. And both of those use vacuum.

[@coolgamer5148]

Does that iac depress any movement in it mine seems too be stuck out and no movement inward... is it common does it need power to depress thanks

[@HARDEEPJADEJA]

Hi can you just what to do for rough idle issue on freelander 1 ? Does it has mass air flow sensor ? Or manifold air pressure ? Or anything else needs to be clean along with throttle body ?

[@joonyaboy]

Would this cause a light knocking pinging only at idle? Goes away when revved or driving

[@Vanzeng]

Very helpful Thank you. How to re-calibrate it?

[@charlesdowns1691]

reset = ignition switch on..slowly press gas pedal down~slowly release+then turn ignition switch back to off position.

[@MrAndyHTC]

Hello Ratchets and Wrenches, in this video you really did not explain how to clean the Idle Air Control ( IAC ) Valve

[@themusicalgeniusafillthisp8374]

Great video thanks solved my problem

[@derpherpp]

Hi do you have any video of removing and installing transmission

[@nusretcinsoy434]

Trodle body fully closed is normal. ? If you remove idle control valf soket after car runing ? Car stop ?

[@juelpacquiao4969]

Hi I amazed with your DIY video, I just have a question maybe you can help me. I clean my throttle body using WD-40. when I start my engine suddenly the check engine appear and the engine vibrating ang losing power. I think the WD-40 reached the engine. what do you think the WD-40 caused the problem? I know you can help me, please give me advise thank you!

[@disht2]

Just open it back up and use throttle body cleaner. It doesn't leave a residue like wd 40 will. Run the motor for a while and it should clean it all out. Just drive it on the highway.

[@Anthony_in_Bloomington_Indiana]

Could I clean the idle valve with carburetor cleaner? My car is a 2004 Toyota Corolla, with 110,200 miles.

[@clarkso65]

This is the way KZbin must be :)

[@yuikopo9379]

Awesome video man, really helpful.

[@zombiecaca1592]

Have a question. I'm diagnosing a 2000 Infiniti i30 with a p0505 code set. The symptoms are as follows. Vehicle stalls right after starting. Vehicle will stay running when depressong on the gas pedal on crank. After that it stays on and drives perfectly fine. No stalling at stop signs or red lights. The idle is @550rpm. Any advice on where to begin first?

[@orangeblueandlavendar6826]

My cars doing the exact same thing. I took it to AutoZone and had them run a check. They said it was a bad idle air control valve. Cost 200$ for the part

[@zombiecaca1592]

I double checked everything and it turned out that the intake tubing that goes directly to the Mass Air Flow Sensor wasn't connected properly. I took out the MAF and cleaned the sensor and the IAC Sensor. Car starts right up like regular now. Still have the code set but I'm sure it needs a deep cleaning.

[@snowfall1771]

@@zombiecaca1592 did you remove iacv ?

[@harrycallahan3221]

Another helpful video. Many Thanks.

[@myRatchets]

+Harry Callahan np, thanks for commenting.

[@dunnoyolo2238]

Have 94 ram 1500 5.2l with 5speed manual trans and in second gear starting from dead stop it wants to some what kind stall with a bit of a dieseling affect. cleaned throttle body and replaced IAC

[@nadeem5476]

just want to know that when the car is NOT idling and it is running over 4 rpm around 120 kilometers per hour speed so what would be the reading of IAC valve on OBD2? plz note that car is having Cable less electronic throttle body. my car shows IAC readings fluctuating during drive too, is it normal ? thanks. in advance.

[@robinhockett1191]

Thank you very much

[@michaelbrewer2355]

Very lnformative thanks

[@jmb-bj9gs]

My car is a 2000 olds intrigue. Recently I noticed it has a high idle jumps from 700 up to 1200 and even up to 1500_2500 on occasion , especially when I put it in neutral and then park . Then feels like it "sails", ? Gotta press really hard on brake to keep car from moving . Anyhow, do you think the iacv could be stuck or failing , or anything else I should consider?

[@sniperpaintcorrection]

My car drives fine cruising around town. Soon as I stop a few seconds at a red light it loses idle and cuts off. You think it’s the Idle Valve?

[@ahmedabdellatif6436]

I noticed that i can't keep a steady rpm when my car is in park or neutral, after watching this video I'm suspecting it might be related to this, any thoughts?

[@badrababane9647]

You are amazing man 👍👍

[@leoagosto7006]

thanks for the very informative video

[@motube2389]

So what is the procedure to clean an electronic throttle body if we can't clean it manually Knowing that the majority of car's nowadays are equipped with electronic one

[@rhdtv2002]

moe raw very good question..i saw a guy just leave it plugged in and cleaned it like that but my understanding you have to remove them then clean and reinstall. some cars you have to go through a relearn idle process after reinstalling it

[@Mr2pint]

simply detach the neg terminal on battery - no power no memory. All other reviewers don't mention a problem with electronic throttle bodies so I doubt it's an issue.

[@kpspeaksfacts7424]

Very informative! Great video

[@elchistarugo4794]

i did clean my throttle body position already.but i'm still having a problem on a cold start.what do u think is wrong with it.

[@justinkessnger430]

Hey man I have a 2006 Hyundai tiburon GT V6 and it's giving me a code saying to replace the IAC. Could this be because I did an engine swap? And will cleaning the throttle and IAC fix it or do I have to replace it no matter what? The car runs and drives fine, revolutions aren't high or low and I don't have a sticky gas pedal. The only thing is that I do hear a small vacuum sucking noise when I turn on the car then it goes away after 10min of driving. I would highly appreciate your help before I go and buy the part which is $150. Also I did go over a small side walk two days before the code came on, could something be lose or did I mess up the IAC?

[@lancecaingat9072]

Hello sir, is the air filter of your montero fits in mitsubishi freeca? Also kindly advise what kind of oil filter for my freeca 4g63a gasoline engine. Thank you very much.

[@johnnobravo1978]

Just wondering, I tried to follow this video and removed the air filter and cover and inlet and on the other end was the turbo not the throttle body. Where is the throttle body on a 2002 Mitsubishi Pajero 3.2L Turbo Diesel ?

[@maryellis3661]

can the IAC be on a different part of the engine ?

[@mushy18100]

Very helpful. Appreciate the vid!