How to fix a honda idle issue (6 common issues it could be)

In this video i go over common issues that cause the hunting idle or idle issues in civic. If you like the video be sure to subscribe!!
Thank you and god bless!!

[@NGH99999]

I just had this idle surge after replacing a bunch of original parts (breather chamber, PCV, IAC valve, intake and TB gaskets, coolant transfer tube o-rings, injector seals, knock sensor, etc.) on my 98 Civic's Y5 engine (CVT). Here's a few things I learned. Maybe it'll help someone else with their situation. Used the Lisle spill-free funnel kit to make sure I bled all air out of my coolant system. In doing the above work, I had to do a complete drain of the system (including pulling the block drain plug), so the entire cooling system (block, head, all heater plumbing, etc.) was essentially full of air when the time came to refill with coolant. Once I refilled the system, it took over an hour of idling and multiple fan cycles for the system to completely burp all the air pockets. During this process, occasionally rocking the car up and down helped dislodge bubbles, as well. I also serviced the throttle body for the first time in 22 years. The engine side of the throttle plate, and all internal passages, were filthy. I cleaned the throttle blade and bore w/red Scotchbrite and solvent until new again, taking care to remove only the crud, and no aluminum with it. So at this point, minus the crud buildup, the TB is back to bypassing proper airflow around the throttle plate. This bump in airflow also confused the computer at initial startup. Idle bypass air screw adjustment: was originally sitting at about 1 full turn out from seated. After TB cleaning, 1/4 turn out from seated was all that was needed to put bypass airflow back to where the computer wanted it. IOW, after cleaning the throttle body, the engine didn't require as much additional bypass air from this part of the system. Beyond the above, I pulled both leads off the battery, clamped them together for an hour, then reconnected them to battery. I read this somewhere online - one of the many different "procedures" people use in an attempt to reset the computer. Then turn ignition key to run position for a couple seconds. Then I started the car and left it alone for a full hour to relearn idle. Was interesting to watch the tach, and how the computer kept adjusting RPM to sort itself out. After that hour, the idle still surged very slightly, but after a couple of additional drive cycles, it's idling rock steady and the car runs like the day I drove it off the dealer's lot.

[@TexasHondaChannel]

William Hastings This is getting pinned good job!

[@xHustleHaRdx]

Sweet 👍

[@xHustleHaRdx]

@@TexasHondaChannel Definitely A Good Job 👍 👌 👏

[@ashleypickle1328]

new to this but i just changed my iac for the second time. got my engine gasket fixed. cleaned the throttle while attached but i think it’s time to take off the TB, coolant, and idle bypass screw 😮‍💨😅

[@ninevoez5569]

Broooooooooo!!!!!!!! My Honda Jazz's rpm was unstable too. About to lose my mind figuring out what's wrong with it. I followed your first step which is check the coolant, filled it to the max level and BOOOOMMMMM worked like MAGICCCCC 🤯😭 solved the issue

[@dekadani5734]

replace 4 coils

[@reyreyes5467]

Exactly my thoughts!!! Mine just turned on but idled weird and noticed low coolant and fuck😂😭 about to go get some and hope it works

[@PlumbNutz]

If your car has been sitting for a long time and the idle fluctuates up and down in rhythm try putting a long screwdriver or a pipe onto the idle air control valve and tap it with a hammer while the engine is running to unstick it. This worked for me on my Honda 2.4 l

[@jaysee69]

The question from a newbie is: WHERE is the IACV?

[@AlexRyne]

​@@jaysee69depends on a car, google

[@user-lg2us4dm4j]

​@@jaysee69near the trottle body if you still looking.

[@MikeKollin]

I like the way you teach / explain things. Very clear and direct and easy to understand.. .Thanks!

[@carloscuevas9853]

Subscribed after tonight saw your video fixed the fast idle valve and fixed my surge amazing boss thanks honesty keep it up 💯💯

[@keithboykin4200]

Hello, very helpful and informative. Over 40 yrs exp. & still learning, thank you.

[@codymoore3046]

Man thank you I have been trying to figure my car out for a while it was fast idle thermal valve it was really loose tightened it up and amazing

[@bug8502]

I have been lazy and not checked my coolant level in a long time. That was exactly the problem so thank you for pointing this out as the most common problem.

[@user-lz7nn9bh4w]

I want to thank you very much for a very thorough explanation of idle issues on Hondas. I I happen to have a 98 Civic EX that's been giving me problems. I just rebuilt the transmission, and replaced the engine solenoid Andy Transmission solenoid. But the engine still tumbles a little bit and so I'm not completely happy. I replace the motor mounts as well. Still I'm hoping to get better gas mileage out of it. I was averaging 14-15 miles per gallons. It used to average 24 miles per gallon (32 hwy).

[@rickygoss4804]

More helpful than most vids I watch. Great job guy helped me out

[@lorenapalacios01]

Dude thankyou you are the man freekin awesome . Very knowledgeable easy to follow and understand. I appreciate u big dawg

[@wslnelson]

Great video covers every thing I would never thought of and appears to be very thorough. Thanks So Much :)

[@lhernandez857]

Sick engine bro. I just got done rebuilding a b18b1 and when I started it, it had a surge to it so I’m hoping these steps will fix it. Thanks bro. Appreciate the video.

[@edmundochaparro-barriguete1215]

I really like your complete efforts and encouraging attitude

[@rolandomacielmagana7469]

Omg you are a genius, a genius!!! My idle was doing that bouncy stuff and when i was shifting it was pulling me and choking the engine and i have replaced all the sensors on the throttle body and the iacv but bothing, and then i decided to try out to spray carbon cleaner on the manifold gasket and there was a leak, i was seeing bubbles so i am going to replace it and see if that fixes my issue, hope for the best 🤞🏻

[@flatlineracer3207]

Great video. I did a search for this exact problem on my 1990 Honda CRX. I'm the original owner and never had this problem. It's driving me nuts. Thanks

[@jesusc.b6327]

I appreciate good content such as yours thank you man.

[@chuySG1]

Thanks for the video. Well explained, lot of information. Awesome!!

[@frankybarra2532]

Thanks bro you help me and saved me a lot of money going to a mechanic and being robbed

[@savagewarriorzz2199]

Yes sir after swapping intake manifold from auto to manual I checked for these things just to be sure cause this intake manifold was a head ache to put on. LOL and it was a hose I forgot to connect. And it idles awesome now.

[@josiahneice5702]

Awesome video super informative I really appreciate you taking your time out to make this video thank you blessings to you and yours💪💯

[@marcuscosta6102]

Thank you! Very great content, it helped me me a lot!

[@anthonylavallee4362]

Great video and presentation. Beats all other videos on this topic bar none!

[@victor440_]

Great tips thanks you should have mention that if the car does not idle it's probably carbon build up around the butterfly valve inside the throttle body. That can be cleaned off with carburetor cleaner and some q-tips. Like I said great videos thanks for the content.

[@nielsei]

Your grinding hard bro it will pay of eventually

[@bascoattico3100]

I like the orange bed liner job it’s amazing

[@ashleypickle1328]

great vid!. i appreciate this because i’m new to my car but every thing seems manageable. 2 years ago i was taught how to changed my IAC and recently for the second time because of the revving and jumping/skipping in park or at a light. i thought it was my engine gasket leak but that was fixed. thought it was my spark plugs- changed those. yesterday i cleaned the throttle body but while attached, changed my air filter & tube, and unplugged my battery to reset BUT i think it’s time to take off the TB, change coolant, and adjust the idle bypass screw 😢😅. i’m determined now. ty for the tips. side tip: i’ve been reading my car workshop manual (honda crv 2001 ex) it definitely helps with diagnosing the code properly P0505

[@juliopinto03]

Thanks for the video ! Life saver

[@ChloesDad]

Dude great information!!!

[@miguelarevalo1489]

Great tips. I'm having issues with my wife's cousin crappy hinda

[@macnats3541]

Very detailed demonstration❤️

[@elvin8899]

Thank you this help me a lot

[@user-ce6wn6ye7v]

Good video I will try it, I have the same problem

[@vertrauenmotsamai1217]

Thanks for the video - I was having the similar problem.

[@justinturnereggeson]

Thank you for sharing your knowledge

[@acollins9277]

Great detail info, thanks

[@cassiem1148]

I had this problem. Same idling problem.. Turns out it was my idling control sensor. You defs right

[@rickwallace7884]

Thanks very helpful 😊

[@bikemaurice1953]

Simple and methodical. Thanx, muchissimo ^_^

[@centraltexascivic7299]

I need to upgrade to a z6 I hate my y7 the cold air intake never fits properly but great info buddy

[@terrencecoughlan5704]

Love my 4 door lx got me wherever I needed to go

[@oraldavis7387]

thanks again for the information

[@EDGAR0728]

Thanks for explain all the problems

[@markstroud4956]

Its gonna be great when you get a beater and rebuilt the whole thing. Going through each system and how to work on it. Then top it off with one of your paint jobs. Have a great year.

[@TexasHondaChannel]

Mark Stroud This was that better. I have been buying beaters and building them up for years. Most the other videos are on my other channel though

[@teamdread1116]

Veryyyyyyyyyyyy helpful

[@Ro-ThaytheFirst]

Right on 🙏

[@maviswilliams2708]

Helps alot!

[@frias2287]

Good job bro 💪 👍 🔥

[@busara45thevillain22]

There's one in Mt neighborhood somewhere. I call it the humpty dance. Wish I could send this to em. Every morning and some late nights.

[@Regal_Civic]

Thanks James.

[@TexasHondaChannel]

stuart nordstrom Sounds like alternator isn’t charging the battery or your battery is trash

[@ManuelMartinez-ki5oi]

Very good video thanks for share

[@pilgrimhere652]

I have a 1992 civic with that type of problem, I put a couple new sensors and start , run and go off, I cleaned the troutle intake, looking clean and still have the same problem, But Im not giving up, I like that civic , looking pretty, Sooner a later U- tube and you guys will find the fault.

[@vandamnjaunclode9813]

thank you man

[@adrianf1356]

1994 Honda Accord Lx here and I have a massive surging/idle issues main when sitting either in park or drive at a light. Things Ive worked on and still havent resolved my issue is spark plugs, TPS, IAC valve, replaced the TB gasket (i replaced it wrong so theres a vacuum leak at the gasket), cleaned the TB plate, EGR valve and port cleaning. gonna try and clean the fuel injectors and i have o-rings for the FIT valve coming in half a day so ill be able to do that also. Wish me luck cause I bought the car with a idle problem :D

[@ericktalavera9015]

Have you solved it yet ?? I’m on the same boat bought it like 4 months ago too

[@ianbotts3702]

I just figured mine out today after chasing down every vacuum line. Same issue bouncing idol in park or neutral. It's a 15.00 rubber seal in between the brake master cylinder and the brake vacuum booster. Try this test when in park press the brake really hard and hold it.

[@alexkinnane5831]

Awesome thanks!

[@terrencecoughlan5704]

Cranks really good changed the fuel pump starter alternator coils plugs cam sensor crank sensor set the timing to make sure it’s good

[@sh0ut156]

Thank you !!

[@inhisnameislay3401]

Thank you so much for being so thorough and demonstrative could you got my subscription

[@pilgrimhere652]

I have changed all those sensors and valves in a 1992 honda civic, Im gonna check if the manifold gasket is bad. but I ain't selling the nice looking Civic , That's for sure.

[@hris9r]

very helpful

[@bangissagaling2076]

Wowww!!! Ty.godbless

[@joseereyes24]

Thanks for the video, any idea why on startup my idle is very low like around 200-300 but then once at operating temperature the idle remains constant at 1k

[@jhondeleon9798]

Thankyousomuch ❤

[@MikeKollin]

IF I take out the FITV while still on the engine will coolant come out? I adjusted it, tightened about 2 years ago while still on the engine and worked like a charm.,.. It was hard but I took off 1 bolt then loosened the other and let the plate drop out of the way and used a flat head to tighten it up... But Now I want to take it out to clean it.... will coolant come out? Or just a little bit? Thanks for the video!!

[@texaslibertystrong4795]

Good video

[@deltonpaul8274]

Thank u sir

[@MohamadFaiad]

great . thanks

[@BG-hg7cp]

Good vid. I need check all this over. Got my car all back together again after painting intake and installing correct engine harness n ecu for my mini me swap n now car idles high till warm then surges all same parts as b4 with wrong year ecu n harness and ran fine b4. So think I got a vacuum leake or its freaking out bc no o2 sensor in

[@BG-hg7cp]

BTW this is brandon from alittlebitofeverything. This my other channel

[@yungxwolf6971]

Hey thanks for the video! Really narrowed down my problem, though I have a 2000 accord and I'm having the same issue, only idles in park though. Is that the same thing going on here? Anyone with any answer please lmk

[@joabtrust]

Yes, our 2000 Civic surges when in park, put it in gear and it stops until the rpms get low or near idle.

[@JRXHC]

Hello, in regards of the throttle body, where does the vacuum line from the lower back side go? Thanks. I been having issues for a while now regarding leaks.

[@GurwinderSingh-xk5fb]

Hi mate, thanks for the video. I have HRV (D16A) in New Zealand. The rpms go Up and down when i accelerate (1500-2000 or 2000-2500) it doesnt do it entire rpm range when car is parked. I have checked TPS with multimeter, checked IAC valve but no gain. What else it could be??

[@chickydogbreath1]

Gonna do this tomorrow it's very likely a coolant level issue. I'm getting the 900-1600 rpm revs. While testing looking it over earlier I noticed the coolant was below the min. Also when I turn on the AC the idle revs up to 2000 and stays there but doesn't surge.

[@waynejordan7473]

Same here on a dc4 b18b1

[@minks2962]

good video

[@nicholaspetre1]

I have just wiped and cleaned a throttle body on my Accord 2.4 2011 now I have idle issues - the lowest rpm I get while idling is 840 and it is constantly fluctuating between 840 and 1,100 rpms. I just wonder what could possible go wrong that makes now revs go up and down keeping the lower value pretty high at 840? The reason I went and cleaned the throttle body is that my air intake tube cracked and I had to install a new one and cleaned mass air flow sensor as well.

[@terrencecoughlan5704]

My light on the D in drive flicks on and off can you help me find this problem. So far it’s been running good just a light on for the catalytic converter which is no problem. I’d appreciate your help new to this but been watching your projects for a while

[@wslnelson]

Thanks!

[@emricap]

This is so wholesome

[@tylerchew6167]

There is a screw on the intake that controls your idle as well. It's on the intake right above where the rubber hose for the air filter attaches to the intake.

[@SabrenaGoldmansygaux]

I replaced my dirty air filter and there was a screw in there I wondered why the idle issue happened right after that… also replaced map sensor

[@carpo719]

I'm pretty sure it's my manifold gasket but I'm having problems getting it out. I want to make sure that's the problem before I get too deep into it. That clamp that holds it onto the engine is a pain in the butt. Those bolts tend to wear down, and rest, and you will need a standard set to find that sweet spot where it fits the Bolt 9/32 or whatever it is. I have three bolts broken off at the manifold, fortunately there's enough to grip onto to get them out of the engine. I just don't want to get too far and not be able to fix the problem or find out it was something else. My car's been sitting for 2 years, every time I fix something something else would be the problem as usual

[@MikeKollin]

Can you use Carb Clean to clean out the Fast Idle Thermal Valve?

[@shabbirkhan1606]

Thanks Bro, really helpful

[@alexislugardo6955]

Can u show where the vacume hoses attach to? I have two vacume porta open not sure if to connect a hose from front to back or cap them

[@shakamuni01]

Does does the the IAC valve run off coolant. I know it is there to heat the throttle so it does not freeze up. but is that valve not controlled by a servo motor, or is it some sort of hydraulic thing? It does sound like the fast Idle is controlled fully by coolant.. Reason why I am asking is I get white smoke only when idling with no check engine lights and valve lashes adjusted. Looked it up and a forum mentioned: "Default Re: 2000 Honda CRV smoking at idle whtie smoke at idle and just after pulling away from idle, exactly what i had when my Idle air contrl valve gasket had gone hard and failed! This gasket is repsonsible 2 things, the IAC valve, but also the seal between the housing, for letting coolant into the throttle body walls to assist with warm up, and if it fails like mine did, ityou end up with a coolant channel exposed to the sucton side of the throttle plate, and therfore, high suction (low manifold pressure at idle) causes it to suck hard and pull coolant into the intake. Another stupid design!" So I was temporarily going to bypass the water hoses to the IAC valve to see if the smoke goes away. Yes I am expecting a bad idle but without white smoke. If it goes away I will know it is the IACV gasket.

[@jleon8751]

Thank for the tips

[@chonuLewis]

I've had the same issue which started immediately after I removed the BMC air filter to clean. waited for almost 10mins,as there was no difference . i had shut it down & restarted the engine. it was then back to normal. It was my first time removing the air filter, is it generally normal? btw mine is Honda City 1.5exi manual

[@benjaminshoaf3423]

FREAKING BOSS BRUH!

[@MrSymbolic7]

I have a Gen. 8 , 2011 Civic and when idling with the A/C Blowing the engine idle will shudder hard as the Compressor kicks on , I suspect that it could be a poor fuel , because it seems to vary from fill-up to fill-up , so possibly to much ethanol or water in the tank from bad gasoline ?

[@sotheamam1244]

Hi there I don't have idle issues but I have a 2005 civic lx with 220000 miles that vibrate a little at idle that bothers me a little, what could cause that little that vibration. No engine check light but does have vibration and when backing up it vibrate more

[@BigKWS]

I wonder if replacing the MAP sensor will do any good?

[@NAB18B]

Man I I love D and B series motors. I grew up with them in high school. With the growth of the internet and KZbin we learned how to fix our own cars. The only issue was car thieves stealing stock or modified cars, even today, even though newer Honda’s have turbo now. So many parts out there for the Honda scene, but it could be all taken in a second. F’n C*nts

[@truthseeker1203]

My 97 accord is idling really low and rough when turning on ac/headlights, basically any electric accessory.. today I cleaned out the egr and egr passage, most of them were clogged. And the passage was very clogged. Haven’t turned the car on yet but yeah… Does anyone know when setting up a throttle body don’t you drive air bypass screw all the way down, unplug IAC valve, and then adjust the BASS (base idle set screw) to 750, then adjust the bypass screw until idle is 750-800. Is this the correct procedure? And is base idle really 750?

[@95TurboSol]

My B18c has a high idle (2000ish rpm) but only in the fall/winter, it doesn't surge, just high until it warms up. Do you think it's the fast idle control valve or IACV?

[@TexasHondaChannel]

If you have a Fast idle valve I would heck that first. if you don’t have one use a spray bottle with water and spray around all possible vacuum leak areas and listen for a sucking sound.

[@biocamino_ezequiel]

Same issue in a 97 CRV. Do i have to screw the fitv to the top? I read that this is calibrated in a certain position, i dont want to create a problem

[@ivanc9232]

Where did you get your black intercooler pumping bro ?

[@dameonfochtman881]

My 91 crx looses power after it’s warmed up, kinda like it’s loosing compression, but wouldn’t it not have compression from the start? It sounds like it idles fine but it starts dying around the block, do you have any ideas?

[@WhoWhereTheBee]

Great info dude. The problem in my Civic (B15D7) that was not solved by replacing the TPS (that did solve other issue) is that when I let go off the gas, to go from 1st to 2nd, RPMs drop to iddle super fast, so I have to tap the gas a little before engaging 2nd gear. I'm hoping for things to be a bit dirty in there...

[@manuelpreciado6442]

just bought a 2000 prelude and having that issue you mentioned about dropping idle after shifting into 2nd gear so my question is changing your tps sensor fixed that issue? thanks In advance

[@raeeqmohamed1607]

I haven't checked all of these but I have this problem where my idle is low and sometimes the car cuts out but then I tilt the accelerator cable downwards and it works fine for the time being but what can the issue be can it be related to this aswell

[@timothyfrost8055]

I've got a 1998 honda accord lx 4 cylinder and when in park the idle is anywhere from 2000 to 2500 rpm. But what I don't understand is when putting it in drive it drops down just above 1000 rpm

[@iMrp1]

if you rev it and it stays at whatever RPM , clean throttle body , fix those lines aswell if loose

[@khaliddavis8520]

My Honda is whistling I put my hand over the IAC and I Suppress the noise?

[@SIRICKO]

Yeah you would make this after i fixed mines. lol My IACV was fucked.

[@TexasHondaChannel]

SI RICKO my bad -_-

[@iDIL53]

My civic 2010 has this problem Whenever the air con compressor cuts in - the engine shudders for a second. I've cleaned the Throttle body and EGR - works only for a day and the shudder came back Engine mountings are ok and no engine vibration during stops/idle if the AC wasn't ON engine only shudders for a few seconds when AC compressor starts (RPM also dropped a hair but steady at 800 after the shuddering)