Wow thank you! This was exactly it. My 2007 Hyundai Elantra (150k miles) had a rough idle. I was getting evap code so I replaced the purge valve since I was pretty sure it wasn’t the gas cap. After replacing it I took it out for a test drive and it surged up to 7k-8k rpm’s! Had to turn it off and coast into my driveway. I saw your video and did a quick clean and found the blackest of black carbon buildup in the throttle body. Turned the car on to check it and the rough idle is gone!!! Much appreciated for the video
I have seen lots of guys with the obs Ford's drill holes in the flap to fix the idle when this is the actual issue . It is allso a good idea to Chek all vacum and the idle air control valve 👍
What about the pcv valve would this causing the carbon/crud build up on the throttle body? Also what about that oring can you reuse it or shouldutbe replaced?
I cleaned mine yesterday on the i20, I didn't take it out though. So i think that there's still some fat or oil deposits from the WD-40 because it still flactuates on idle but becomes steady when I turn the AC on.
I recently faced this problem with my 2013 Hyundai Elantra , so I cleaned the throttle body, after couple of days I noticed my check engine light was on and upon checking the code I figured out that there is some problem with MAF sensor, so i got it replaced. Car was fine for couple of weeks but facing the same problem again but this time with no codes. And while driving, car jerks just for a split second as if something is holding back and rpm keeps dropping at idle. Any help is appreciated. Thanks in advance.
Did you ever find the solution? My elantra is having the exact same problem. Replaced all the spark plugs and the problem went away for about 2 days before starting again. Cleaned the throttle body but no luck there it seems
My Hyundai Accent 2010 also has this surge feel at idle and the RPM goes very low during idle too when AC is turned on. After turning on the AC, the idle keeps staying rough and RPM keeps fluctuating between very low and medium. Can this also fix my car's problem ?
Hi, I'd like to share that for my 2018 Corolla LE, I was experiencing the same problem with the rpms and what I did to solve it was to clean the throttle body with a rag and wd-40 or crc carbon cleaner and then I replaced the pcv valve. By cleaning the throttle body carbon deposits rpms stopped jumping and then by replacing pcv valve I stopped rough/high rpms on my 2018 corolla.
My 2014 Accent has a fluctuating idle when standing still. Goes between 500 to 750 and down. My dad changed air filter, spark plugs, oil change and some other things I can't recall. Went better for about 2 weeks and now I am back to having the same issue with the RPMs.
I have a 2014 hyundai veloster that won't rev past 2500 rpms, i cleaned the throttle body and no change. Also, there are no codes fore the throttle body, just codes for evap p0455 i believe. Any ideas would be appreciated. TIA
I have 2011 Elantra n my car have been shutting off foe weeks , I change bad alternator bad battery . Now m going to change out my old throttle body after I cleaned out the front of it . This video will help me doing this thanks
I have a 2005 Hyundai Santa Fe when I started it idles real high once it's already warmed up it still stays high and it gets stuck do you think I'll change the throttle body sensor and clean a throttle body like you did in this video will it fix it
Turn ignition to acc mode (power on but not starting) wait 10 seconds then shut power off for at least 10 seconds then attempt to start vehicle but doesn’t hurt to do it twice I always do and works like a charm and same goes for push start except you press button 2 times without pushing on the break ( acc mode) same time intervals it allows the ecm to relearn idle position of butterfly plate in the TB after being disconnected. It may not drive completely smooth right off the bat bc all computers and sensors take some kind of time to relearn each other but I’d say no more than 15 minutes of driving or at least 5 miles
hello, my car started this issue after few things, oil change , oil filter change, air filter change and running car on higher rpm to check bearing issue on tire. after this I found engine light on and surging idle rpm, once I turn vehicle into drive mode rpm reduces and looks normal, what are possible solution ?
Same exact issue after same exact services i cleaned my throttle body from the front im gonna try the bacc tomorrow n replaced MAP sensor still same issue.
My 2018 Hyundai Tucson shakes a lot at stop and go traffic. Feels like it’s having trouble at 1st gear. Once it shifts to the next gear it’s fine. Wondering if this is the same cause.
Try it man this was the issue same issue I had with my car. It’s the same as yours and I was able to clean it and fix the issue. The only problem in that if you open by hand you may throw the sensor off and then have to recalibrate the map sensor. Or worse. Buy a new one. Lucky mine was able to recalibrate on its own but it was something I didn’t know and he didn’t mention.
@@Ageless-being157 When talking about this, would be cool to mention the vehicle you have, because that rule does not apply to all vehicles from what i see
Hello, great video! I just had my 2013 engine replaced covered (mostly) by Hyundai USA. After a couple of months In park or in gear (like this video under a load) the idle drops 100-200 rpm just like in your video. It also occurs when coasting downhill or cruising at a low (700ish to 1750ish rpm). Some other blogs online say the issue was a CPS (Crankshaft Position Sensor). What are your thoughts or have you seen a similar issue with CPS?
Hi,Our hyndai Imax 2014 with 265k idles sometines,mostly when you stop in signal and start,the van doesnt move for 20-30 secs. Replaced catalytic converter without any luck.Appreciate any pointers.Thanks
Check for any cracks or air leaks in the air intake tube, especially where there are folds. I had this problem and it took a year to find out the intake hose had small cracks. I first taped the intake hose and had no more stalling / hesitation. Then I replaced the air intake tube,($20) problem solved.
I have the same problem witha 2013 accent and I cleaned the throttle body and it didn't fix it and I've cleaned the injectors twice and changed coils with new aftermarket and one went dead already...had to put an original back on.sometimes if I just restart the car the issue goes away-also a #2 misfire but if i floor the car the light stops flashing and the car takes off like a bat outa hell and works good...sounds like a fuel delivery issue......any thoughts.....
My 2011 Elantra with over 270 plus miles had change alternator m valve cover gasket n plugs n new battery n negative cable but still shuts off at red lights or when am driving . Just early morning today it shut down at light . Oriely check it out n starter n battery n alternator is good . I was thinking my fuel filter is bad but am going to try this cleaning here ya shower this weekend
My Hyundai Accent 2010 has this surging fee on idle, and the engine vibrates a bit awkwardly when AC is turned on. I don't know if this will solve the issue
@@777-h6d i used the blue driver OBD2 scanner, that shows me the 2 cylinders are misfiring and it also showed that the MAF sensor is faulty as well so changed that too. It's been almost 2 months no issues.
MAP sensor, PCV valve and PCV sensor, throttle position sensor. These are all relatively cheap parts and easily installed. Helps with idle and poor mpg
LOL 150 RPM fluctuation is nothing to worry about… You should probably talk more about the map sensor and vacuum leaks instead of cleaning the throttle body
2006 Tucson 2.7. Idles and hunts between 500 to 850rpm. Hesitates on acceleration. Sometimes stalls at lights. Despite new TPS. CPS and 02 sensor. New plugs wires air filter too. No codes! Will the Hyundai Tucson throttle body be damaged if I physically open the flap if its electronically controlled? Does it need a Throttle body relearn procedure after cleaning
Your engine is probably a 2.7 delta. These engines have mechanical throttle bodies and they control the idle rpm by ISC valves. If your rpm is fluctuating you might want to change the isc or have it overhauled
I change my 2011 throttle body n this issue is gone. Now it shuts off at times while idle . I replaced neutral safety switch two days ago but just yesterday at bank drive thru . My 2011 Elantra shuts off. Now am th my starter nay needs replacing. Same one since got da car at 97k miles no w at 238 k plus.
Did you fix/find problem?2012 accent having similar issues...I replaced my starter--this is how it went down-- click and nothing when turn key and need battery jumped long time to start it. Just to let u know.
This might sound crazy but check your transmission fluid level. If it's low, then there is excessive load on the engine at idle. Add a quart and you may just solve this issue. It worked for me on a 2011 Elantra GLS touring. Ultimately I wound up doing a full flush but adding fluid worked just fine.
🔥🔥🔥🔥🔥🔥🔥🔥 Brake cleaner on a throttle body!!!!! Bad form, bad teaching! 🔥🔥🔥🔥🔥🔥🔥🔥 Berryman B-12 Chemtool, or at least some form of THROTTLE BODY CLEANER. You clean your MAFS with that spray?!
Did you do the reset trick? Turn you car to ignition on but don’t start the engine and wait 10 seconds. Turn the ignition off and wait 10 seconds. Then start the car.
No it was the crank sensor. I replaced that and it was fine. The throttle body was very dirty though the blade was even sticking a little. Maybe better gas mileage we'll see.
I removed mine and cleaned it like you said and the problem was solved. I made sure I could see daylight on booth the top and bottom of the butterfly.
Wow thank you! This was exactly it. My 2007 Hyundai Elantra (150k miles) had a rough idle. I was getting evap code so I replaced the purge valve since I was pretty sure it wasn’t the gas cap. After replacing it I took it out for a test drive and it surged up to 7k-8k rpm’s! Had to turn it off and coast into my driveway. I saw your video and did a quick clean and found the blackest of black carbon buildup in the throttle body. Turned the car on to check it and the rough idle is gone!!! Much appreciated for the video
Will be doing this over the weekend! Great video👍🏾 super informative!!!
I cleaned it with hand sanitizer and it worked pretty well.
Thank you for the video. This is what I was looking for since months. Liked, subscribed, of course 😊
I have seen lots of guys with the obs Ford's drill holes in the flap to fix the idle when this is the actual issue . It is allso a good idea to Chek all vacum and the idle air control valve 👍
Best to use throttle body cleaner. Not break cleaner
What about the pcv valve would this causing the carbon/crud build up on the throttle body? Also what about that oring can you reuse it or shouldutbe replaced?
Thank You, We were stuck here on Earth but this helped.
😂😂😂
I cleaned mine yesterday on the i20, I didn't take it out though. So i think that there's still some fat or oil deposits from the WD-40 because it still flactuates on idle but becomes steady when I turn the AC on.
Have the same issue in my Elantra right now. Changed plugs and could still have symptoms as yours. fixed ? Can it be fixed
I recently faced this problem with my 2013 Hyundai Elantra , so I cleaned the throttle body, after couple of days I noticed my check engine light was on and upon checking the code I figured out that there is some problem with MAF sensor, so i got it replaced. Car was fine for couple of weeks but facing the same problem again but this time with no codes. And while driving, car jerks just for a split second as if something is holding back and rpm keeps dropping at idle. Any help is appreciated. Thanks in advance.
Did you ever find the solution? My elantra is having the exact same problem. Replaced all the spark plugs and the problem went away for about 2 days before starting again. Cleaned the throttle body but no luck there it seems
@@chrisfinch7564anyone found solution my Elantra is the same
Have you tried changing out the idle air control valve it what the the car idling at the correct rpm’s
@@SamRam-t7w I had the same problem and today changed coils and spark plugs and cars finally running fine woohoo
@PepeDumola i changed spark plugs and coils but no success. What should i do
Worked like a charm 👌👍
Clean also the MAP sensor that has also has surging effect. It is located after the air throttle
My hyundai accent sometimes surging when speeding up is this the problem the MAP sensor?
And idle air control sensors as well👍
How do you do a throttle body reset on Hyundai push to start
I was told to take the battery cable off for 15 minutes and reconnect it.
Thank you my Genesis is do the same thing . I will have it cleaned.
Did it work?
Yes it did thanks.
My Hyundai Accent 2010 also has this surge feel at idle and the RPM goes very low during idle too when AC is turned on.
After turning on the AC, the idle keeps staying rough and RPM keeps fluctuating between very low and medium.
Can this also fix my car's problem ?
Hi, I'd like to share that for my 2018 Corolla LE, I was experiencing the same problem with the rpms and what I did to solve it was to clean the throttle body with a rag and wd-40 or crc carbon cleaner and then I replaced the pcv valve. By cleaning the throttle body carbon deposits rpms stopped jumping and then by replacing pcv valve I stopped rough/high rpms on my 2018 corolla.
@@SirD31V1D This model doesnt include that part
Can that cause the car not to move/drive when you take it off from Parking and put it to Drive/Reverse?
I watched several similar videos before starting any repairs 😅.
I'm having that same problem!! I'm gonna clean it tomorrow!!!! I Have the tools already!!!
My 2014 Accent has a fluctuating idle when standing still. Goes between 500 to 750 and down. My dad changed air filter, spark plugs, oil change and some other things I can't recall. Went better for about 2 weeks and now I am back to having the same issue with the RPMs.
How'd you fix it?
Right on bro need these kind of videos do u work on sbc 350s?
I have a 2014 hyundai veloster that won't rev past 2500 rpms, i cleaned the throttle body and no change. Also, there are no codes fore the throttle body, just codes for evap p0455 i believe. Any ideas would be appreciated. TIA
Your using brake cleaning here to clean the throttle bottle won’t that hurt the catalytic converter. What about using throttle body cleaner
Your 100%right! always use the proper tools for the job. And never press the butterfly valve.
Not if you're just wiping it down nothing will happen.
Putting it back together how tight measurement did u tie it back down ???
I have 2011 Elantra n my car have been shutting off foe weeks , I change bad alternator bad battery . Now m going to change out my old throttle body after I cleaned out the front of it . This video will help me doing this thanks
What was the problem with your car ??
Mine doing the same after the alternator and battery change... battery light keeps coming on and idle rough and wanting to stall
Sonata thoe
I have a 2005 Hyundai Santa Fe when I started it idles real high once it's already warmed up it still stays high and it gets stuck do you think I'll change the throttle body sensor and clean a throttle body like you did in this video will it fix it
You said you were going to do an idle relearn, how do you do that?
Turn ignition to acc mode (power on but not starting) wait 10 seconds then shut power off for at least 10 seconds then attempt to start vehicle but doesn’t hurt to do it twice I always do and works like a charm and same goes for push start except you press button 2 times without pushing on the break ( acc mode) same time intervals it allows the ecm to relearn idle position of butterfly plate in the TB after being disconnected. It may not drive completely smooth right off the bat bc all computers and sensors take some kind of time to relearn each other but I’d say no more than 15 minutes of driving or at least 5 miles
Hi, where is the IAC valve on this vehicle? My RPM is stuck at 1500
Did you find the iac?
Hi I have a older model 2015 petrol engine manual will this work still?
hello, my car started this issue after few things,
oil change , oil filter change, air filter change and running car on higher rpm to check bearing issue on tire. after this I found engine light on and surging idle rpm, once I turn vehicle into drive mode rpm reduces and looks normal, what are possible solution ?
Same exact issue after same exact services i cleaned my throttle body from the front im gonna try the bacc tomorrow n replaced MAP sensor still same issue.
@@SauceCreates did it help?
My 2018 Hyundai Tucson shakes a lot at stop and go traffic. Feels like it’s having trouble at 1st gear. Once it shifts to the next gear it’s fine. Wondering if this is the same cause.
Try it man this was the issue same issue I had with my car. It’s the same as yours and I was able to clean it and fix the issue. The only problem in that if you open by hand you may throw the sensor off and then have to recalibrate the map sensor. Or worse. Buy a new one. Lucky mine was able to recalibrate on its own but it was something I didn’t know and he didn’t mention.
@@Ageless-being157in another vid a man uses a stick leveraged against gas peddle to open throttle so sensor is not disturbed.
@@Ageless-being157 When talking about this, would be cool to mention the vehicle you have, because that rule does not apply to all vehicles from what i see
@@williamnunez9609 true I should have said that. I have a 2018 Hyundai Elantra.
I cleaned mine also and when I moved the throttle plate, I got the check engine light so all I did was have to clear it
Hello, great video! I just had my 2013 engine replaced covered (mostly) by Hyundai USA. After a couple of months In park or in gear (like this video under a load) the idle drops 100-200 rpm just like in your video. It also occurs when coasting downhill or cruising at a low (700ish to 1750ish rpm). Some other blogs online say the issue was a CPS (Crankshaft Position Sensor). What are your thoughts or have you seen a similar issue with CPS?
How did you get them to (mostly) cover your engine replacement? Thank you
Hi,Our hyndai Imax 2014 with 265k idles sometines,mostly when you stop in signal and start,the van doesnt move for 20-30 secs. Replaced catalytic converter without any luck.Appreciate any pointers.Thanks
Check for any cracks or air leaks in the air intake tube, especially where there are folds. I had this problem and it took a year to find out the intake hose had small cracks. I first taped the intake hose and had no more stalling / hesitation. Then I replaced the air intake tube,($20) problem solved.
I have the same problem witha 2013 accent and I cleaned the throttle body and it didn't fix it and I've cleaned the injectors twice and changed coils with new aftermarket and one went dead already...had to put an original back on.sometimes if I just restart the car the issue goes away-also a #2 misfire but if i floor the car the light stops flashing and the car takes off like a bat outa hell and works good...sounds like a fuel delivery issue......any thoughts.....
Did you find a solution ?
My 2012 accent self accelerates if I just tap lightly on pedal, also rpm spiking in neutral (manual trans.) Sometimes it feels like itll expode.
Thank you for the video.
can this break ur car
Is your shop in chicago il?
My 2011 Elantra with over 270 plus miles had change alternator m valve cover gasket n plugs n new battery n negative cable but still shuts off at red lights or when am driving . Just early morning today it shut down at light . Oriely check it out n starter n battery n alternator is good . I was thinking my fuel filter is bad but am going to try this cleaning here ya shower this weekend
My Hyundai Accent 2010 has this surging fee on idle, and the engine vibrates a bit awkwardly when AC is turned on.
I don't know if this will solve the issue
Did it work ?
@@oto-obongetim4979 I'm having the same issues plus fuel consumption is bad
Hello guys
Mine turned out to be a faulty ECU
@@oto-obongetim4979 what does ECU MEANS AGAIN
I tried this fix today but nothing happen, the rpm surge is same as before and more over engine light trun on after doing this. ☹️
Update: I changed all 4 coils and spark plugs, and my problem got fixed. Cylinders 3 and 4 were misfiring.
@@Shah972how did you determine the misfires? Glad you got it fixed 👍🏼 no surges?
@@777-h6d i used the blue driver OBD2 scanner, that shows me the 2 cylinders are misfiring and it also showed that the MAF sensor is faulty as well so changed that too. It's been almost 2 months no issues.
Where to go if this cleaning doesnt work?
MAP sensor, PCV valve and PCV sensor, throttle position sensor. These are all relatively cheap parts and easily installed. Helps with idle and poor mpg
Thank you very much.
Hello i have hundai accent 2013 when i on ac my car RPM up and down. what is the problem.how i will fix.
Try to change the crankshaft sensor. It happend to my car before.
cool, you guys also have a honda?
Nice Video
Thank you
Great video
GOOD GUY..
LOL 150 RPM fluctuation is nothing to worry about… You should probably talk more about the map sensor and vacuum leaks instead of cleaning the throttle body
My dad did this today. Gonna see if it works tomorrow.
2006 Tucson 2.7. Idles and hunts between 500 to 850rpm. Hesitates on acceleration. Sometimes stalls at lights.
Despite new TPS. CPS and 02 sensor. New plugs wires air filter too. No codes!
Will the Hyundai Tucson throttle body be damaged if I physically open the flap if its electronically controlled? Does it need a Throttle body relearn procedure after cleaning
Your engine is probably a 2.7 delta.
These engines have mechanical throttle bodies and they control the idle rpm by ISC valves.
If your rpm is fluctuating you might want to change the isc or have it overhauled
Did have to relearn it
Nice, i think thats my problem
My Elantra 2009 rmp drops when car is well steamed
someone sprayed lots of "dressing" on the engine. Gross....
👍👍...✌️.
Brake cleaner is no good for that. Leaves a residue. Do it correctly.
brake cleaner doesnt leave any residue.
I change my 2011 throttle body n this issue is gone. Now it shuts off at times while idle . I replaced neutral safety switch two days ago but just yesterday at bank drive thru . My 2011 Elantra shuts off. Now am th my starter nay needs replacing. Same one since got da car at 97k miles no w at 238 k plus.
Maybe timing chain or fuel pump? Losing power?
Did you fix/find problem?2012 accent having similar issues...I replaced my starter--this is how it went down-- click and nothing when turn key and need battery jumped long time to start it. Just to let u know.
This might sound crazy but check your transmission fluid level. If it's low, then there is excessive load on the engine at idle. Add a quart and you may just solve this issue. It worked for me on a 2011 Elantra GLS touring. Ultimately I wound up doing a full flush but adding fluid worked just fine.
🔥🔥🔥🔥🔥🔥🔥🔥
Brake cleaner on a throttle body!!!!!
Bad form, bad teaching!
🔥🔥🔥🔥🔥🔥🔥🔥
Berryman B-12 Chemtool, or at least some form of THROTTLE BODY CLEANER.
You clean your MAFS with that spray?!
Don't leave the clean side of the air filter exposed as he did.
I did this yesterday to my wife's 2011 elantra. Now the check engine light is on.
Did you do the reset trick? Turn you car to ignition on but don’t start the engine and wait 10 seconds. Turn the ignition off and wait 10 seconds. Then start the car.
@@Theonewhowatchesyoutube thanks for the info.
@@randygary9206
Did it work?
No it was the crank sensor. I replaced that and it was fine. The throttle body was very dirty though the blade was even sticking a little. Maybe better gas mileage we'll see.
@randygary9206 what was the problem with your wife car did it shut off at red lights and stop signs as well ?