How to remove most of the carbon build up on the Lexus IS 250, FULL guide, REAL results
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- เผยแพร่เมื่อ 22 ส.ค. 2024
- Thanks for watching my video. If you have any questions please leave a comment!
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Thanks so much for taking the time to create this video, just bought a 2006 IS250 with 300.000 km, it runs really good but I plan to do this job in the near future
These videos is what makes TH-cam so awesome.
Thank you :)
Thanks for the guide, it's very helpful.
Just so you know, those lexus clips that hold the plastic covers on, you push the centre in and then they will pull out easily.
Thank you very much :)
Might be the original ones were like you said but these what i have in right now are different :/ :)
Respect for taking your own time to teach us how to do this! Might've covinced me to get the IS250 lmao.
Thank you very much :) i appreciate that :)
This looks perfect to do when replacing the spark plugs as you have to remove the intake to get to the spark plugs on the right head
I Love my 2003 Corolla.It still runs like new and has multi port fuel injection.When I changed my intake manifold gasket my valves were spotless and had no deposits whatsoever.
Yes, because of the port injections :) Rock Solid vehicles :)
Only good video on TH-cam how to remove carbon from Lexus is250
Thank you 👍🏻👍🏻👍🏻👍🏻
Thank you very much 😊
I really enjoyed this video, I'm looking at buying a used one today and I'll definitely use this info in the negotiation.
Holy shit Adam, you need more views, this is fucking gold boys!
Brilliant 👏 👏 👏 Thank you for your hard work on making this video. Very helpful and informative 👍
Thanks 😊
Might be better to get a fluid extraction vacuum to remove the cleaner instead of blow it out. Safer and way less messy.
Yes but hard to find a vaccum cleaner that has that tiny tip on the end and designed for this work i think :)
Thank you, I think the thing mentioned at 7:49 is for additional cold start fuel injection
I need to do this to mine, I love Lexus but that’s the down side of a direct injection system… all that carbon build up 🤨
Excellent good job 👏👏
Very helpful video. Thank you! Does the oil catch can make a big difference?
Thank you for your response :)
I don't know actually but i have it full after 10.000km so i'm sure it is doing something :)
It really as much as some say
I have p2004 code,intake manifold runner control is stuck in the open,hopefuly I just need to clean stuck flaps. with the help of your tutorial I'll know how to disassembly intake manifold, Thank You Sir.
Your very welcome :)
I am not familiar with this code but either stuck because of dirt or the wiring harness, or you have to buy a used one. They go rarely bad.
Spend more and get the 2016 and up. Forget having to deal with the carbon BS. 200t or the 300 are better options. Unless you like to gamble or doing extra maintenance.
After you crank the engine by hand to open the valves, do you have to do anything to the metal intake manifold with the flaps to line up with the open valves? Or do you just put it back on with gaskets and there is nothing else to adjust?
Hello, thanks for taking the time to do this. May i know what symptoms would you get if you do not walnut blast/carbon clean the IS250. Also, can I spray it into the intake throttle?
Normally your idle rpm will have a play and the car will stall at every red light or so...misfire and so...
Yes you can :)
@uszokrepper1 Cool. I'm just experiencing poor fuel economy and I don't get the acceleration I used to get even when I step hard. So I'm trying to diagnose what's wrong. Have just changed sparkplugs too. Thanks much!
Very good question! So if you don't experience any trouble, it's not necessary to do all that work to verify if it's needed...!?
@@mados3639 a direct injection engine will produce carbon build up from day one. You won't notice Any difference but it just a good feeling that your engine is running cleaner after you done this job
Follow up. I had a vacuum leak on the hose to the PCV valve and that's the reason for poor fuel economy and acceleration.
Nagyon jo! Nekem is van egy is350em Uj Zelandon!
Carbon wasn’t bad to begin with. Usually worse before taken to the shop.
hahaha，why is that bro
So what happens to all the aluminium fragments you scrape off with the metal brush?
Piston rings going to love this unless its at TDC and very good tight valve seal
The motor has a very good valve seal in the close position. Nothing ia falling into the combustion chamber :)
Do it always when it is in the close position :)
good job my friend
Very helpful.
Excellent tutorial video. Köszönőm-
I always burn 93 and do the Italian tune up I never had problems
I don't had either but it's good to know that right now i have mostly none carbon build up and i'm good for the next 100.000kms :)
Yes you can turn your engine while it’s in park. Otherwise your engine couldn’t be running while it’s in park.
How did you know that 5 of them were closed completely to not leak material into combustion chamber? I’m frightened they’ll leak in.
@@davidtrujillo-bedolla7994 it is pretty easy. You turn the engine and you will just pay attention on the valve where is the turning point and will be opened again. If you are imagine the "rocker arms" from the engine you can see that the closed position isn't just a millimeter position but a little bit longer. So just turn the engine, pay attention, your eyes will become "experts" to tell oke there it is, turn the engine more until it opens again so you are familiar with the circle and go look for another valve or just wait again to be closed again until you turn the engine more and more :)
Hi Adam - you mentioned in one of youre clips that your IS was idling high
I have a 2006 IS250 & mine is doing the same. I dont drive it often & take the battery out of another car to run the IS. Once its warm it keeps idling high - 1500=1700 rpm.
Are you aware of this issue ? Thanks Mike
That is actually nothing to worry about :)
Because you keep getting out the battery every time that's why the ecu resetting itself. That's why the rpm is that high.
If you would leave the battery inside, after the 5th ride the idle rpm would be right again around 600-700rpm :) because the ecu learns itself and your driving habits :)
@@uszokrepper1 Thanks so very much
I think I have the same problem with the carbon build up. My is 250 now has 120,000 km. can you tell me if it was the same with you that the engine speed increased to approx. 1800 rpm with a cold engine and decreased to 1200 rpm after approx. 20 seconds. I remembered it differently when I bought it with 90,000.
With 120.000km in your car I wouldn't be afraid :)
About the rpm is totally normal, especially in winter and if you just recently reconnected your battery because the ecu has to learn again which rpm is the best for your ride style :)
bro, thanks for the video , i have lexus IS AWD 250 2010 with 100000 mils on it ,
When i chabge the gear to natural car turns off
I dont know what the issue is.
Overall, the car doesn't have annny issue. All is perfect
I hope you can help me
Thank you. Unfortunately I don't know what can be the issue.
Great video! I was wondering, would this be one a prevention measure for a misfire issue? I’m having a misfire in cylinder 1 and 2 and I swapped in new spark plugs and swapped known good ignition coils into those cylinders and it’s still misfiring. Hopefully you got any ideas on my problem!
Yes it would be!
You should bring the car to a mechanic but this can be also a problem.
It may need also an ecu Reset, throttlebody cleaning, maf sensor cleaning and so an.
@@uszokrepper1 Hi got a gasket seal replaced and just before that brand new spark plugs.
Put everything back together in IS250.
Sometimes on idle the car revs go up and down and the car jerks especially after a fast drive.
Throttle 1st gear seems to shift quicker into 2nd doesn't feel as smooth or fast but car overall is fine. Just that something missing. ECU resetted.
@@ozhoneybadger ohh :/ that's a good question. I don't know what it can be :/
@@uszokrepper1 intake manifold
At 18:40 why do you need to close using the torque bar? Also, I see you stuffed paper towel in all the cylinders except one. Is that because you don't want any debris in there after you have cleaned, or some other reasons. Last question, when the wires broke off the wire brush, I didn't understand how you cleaned them out. If you use a compressor, won't they just fly everywhere?
The torque bar was the longest what i had in the garage, it was easier, but you can use also a shorter one or just a breaker bar.
Yes this was the reason :)
I made a homemade extension for the compressor like i said in the video, with the long extension i was able to reach all the way down and shout them out from there...and yes they flew than away :)
it kind of looks like a hose is missing off the intake hose and was replaced by a filter on the valve cover side,.. if the hole isn't blocked off on the intake tube then that would affect how the car runs...
I know but it's blocked off :)
I've heard that driving your car on the highway/ high revs helps with carbon build up. Is that a myth or should I do this to my car? Mine idles good and I don't think it has that much build up but you never know.
Yes, you never know :) mine hasn't got that much and i driving my car uphill's and highways also for long distances. I think mine is healthy but only in the city driving this car is definitely not a good idea :)
Does not help at all with gdi engines for the same reason fuel injector cleaners don’t help. Fuel never passes over the backs of intake valves.
@@Joseph-eh2oq it’s the heat. It works.
Lexus is luxury car. People are not supposed to clean their engines in their own garages.
It was a stup*d design.
People walk free because their general reliability.
It isn't a timing chain replacement:) You can do it if you have a sense for the car and like to do repairs on your own :)
Hi, just wanted to ask, i am about to do this myself om my is 250, what were the symtoms, what was wromg with the car to make you do this, my car had gotten to a point it was almost undriveable and would almost die at idle, i ran 3 cans of lucas intake gdi cleanee, and now my car is driveable but not perfect, i want to avois going to the dealership tbh, butdont mind having them confirm 🤷♂️ but i have all new map and o2 sensors, brand new coils and plugs car was running rine but startwd running rich here and their, now its giving maf sensor codes and rixh codes 🤷♂️
This can be a bigger problem or a specific problem where you have to take your car to the shop. But to answer your question, it doesn't matter how you drive your is250, carbon build up is there and will be there you it is always a good idea to do a favor like this to your car. Especially once in a lifetime :)
Hello where can i find the link for the intake manifault gasket the spray vor the valves and so on thanks appreciate your work man!
I would go to your local dealer about the gasket.
Spray I got from ebay and the other one is a normal brake cleaner.
Hello, after taking off the aluminum lower plenum, do you know if the engine knock sensor is also easily accessible? I need to replace that as well. Great video!!
Uhh that's a good question. I don't know sorry :/
But i think you can download the service manual if you type in Google Search...
Are you doing this as preventative maintenance or did you get an error code for the knock sensor?
Hello can anyone please reply, is it better just to buy a new manifold instead of cleaning it? I was thinking on just buying a brand new one and adding a oil catch can to keep it clean
It doesn't make any sense :) new ones are surely expensive, the old one in your car you can clean it with towels and brake cleaner, and after the oil catch can it will be again dirty but not that much like it was befote but it will be dirty.
What is that cylindrical air filter that I can see at the bottom at 0:51 ? It looks like you put it in place of where the air intake tube usually goes...
Yes :) this piece name is "pcv filter/breather"
In direct injection engine's the pressure what is building inside your combustion chamber will go away through the pcv system and it is totally okay, but through that hose the "not burned air/oil/gas mixture" will go back into the intake manifold and this dirty air mixture could be also bad for the engine on the long run. So i removed that hose just you mentioned and add a little pcv filter just to not make everything dirty.
Result with the oil catch can all together much much more clear air what my engine breathes. I hope you can understand what i just wrote :)
@@uszokrepper1 I Need That little filter !! Do u have the link to it please!! I also want your oil catch can. Link please!! 🤗🤗🤗 great videos!!
@@OSCARANDRES039
Thanks :)
Oil catch can:
US $11.83 40%OFF | R-EP Oil Catch Can Universal Fuel Tank for Racing Car Aluminum Oil Reservoir Tank XH-JT052
a.aliexpress.com/_vqll0p
That little filter:
www.ebay.co.uk/itm/282670111653?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=emvPe-oMTpS&sssrc=2349624&ssuid=cmSRrDsbQny&var=&widget_ver=artemis&media=SMS
What size breather filter do you have? I spotted one near the manifold.
Yes, unfortunately i don't know :/
14 or 15 mm is for sure but right now i cannot remember. You can search for it on ebay than you will have the right size also :)
@@uszokrepper1 thanks
@@uszokrepper1 Breather is a good idea + can. Did you close hole in mainfold?
@@MrTomekimagda Yes. definitely :)
THANK YOUUUU
Does anyone know what should be done to prevent this from happening?
Only the catchcan can help a little bit, premium gas, seafoam the engine time to time but to prevent it 100%, nothing.
D4-S :)
question for anyone can answer. i have an 07 is250 90k Miles. So im on the freeway going 70-80mph i step on it and it revs no movement of speed and then rpms come down and car Kicks.? i can pass 80mph without stepping on it but curious why i can't step on it between those speeds.
That's sound like a transmission issue to me :/
Change your tranny and dif fluids. Do not flush no bueno
Szia! Mennyibe kerül ez a procedúra? Átlag embernek aki nem tudja vezélésig szétszedni a vasat nem éri meg jobban csak szimpla dióhéjas tisztításra elküldeni?
Szia. Ez kozel sem vezerlesig van szetszedve. Sőt abba en sem vagnék bele :) amit eddig hallottam az az hogy diohejja tisztitas kb 150ezer korul lenne szét es osszeszereléssel egyutt.
En inkabb igy kihoztam ezt kb 50ből es nem kell vele ezek utan torodnom. Ha csak nem hajtok bele még 200at a kocsiba :)
What’s the torque for the bolts on the aluminum manifold and the plastic manifold? Can anyone answer that?
Aluminium 21nm
Plastic 18nm
@@uszokrepper1 What’s that in Ft. Lbs? My torque wrench is not easy to read the Nms. Thanks
@@marcomelo8576 you can easily change the metrics with Google :)
An average person or even someone with some moderate mechanic knowledge would not be able to do this properly. the dealerships selling these gdi engine cars should be held accountable to provide this service for free
I think if you have a garage with those equipments than you can do it as I show it in my video :)
But yes, from the other side you are right. It should be free actually :/
Hali, tudnank beszelni? is250-em van es szeretnem elvegez(tetni) :D valakivel a koxosodast hasonload a videodon lathatoan. Valaszod elore koszi!
Szia keress meg Facebookon, de a magyar is250 csoportban is megtalálsz:)
Do yourself do not go to stealership. Easy just take your time
Is250 is direct injection? If its port injected shldnt the valves be clean?
You are right but all IS250's have direct injection. No port. Only on IS350 and ISf has both.
@@uszokrepper1 so no need to do this on a is350
@@ifeanyiifeaka7696 Yes, you are right :) no need to do this on a 350
Hi Adam i havent had to do this yet (only 52,000kms, 06 model) but am aware that this is an issue with direct injection motor. Yours is the first clip ive seen on this
Did the engine start missing & how does the engine run now?
Yes this is about the direct injection. Not just in my car but every direct injection car :) Lot's of cars...
About your mileage is really not a problem at all :)
I haven't had any missfire at all...but about this mileage i thought i give it a shot.
Engine is running smoothly like a Lexus :)
@@uszokrepper1 Hi Adam hope you show more maintenance clips on your IS :)
@@mckav2358 Thank you :)
I will in the next couple of months :)
it is dual injection system , Why so you need to clean the carbon?
It isn't in the IS250 engines :)
@@uszokrepper1 So 2.5 L4GR FSE don't have dual injection and 3.5 L 2 GR FSE is dual injection?
@@drsanmyattun exactly. The IS250 is only a direct injection engine :)
Bnjour un nettoyage hydrogene fait le meme resultat ?
That's a good question. I don't know really.
Non ca nettoie le dessus des piston et la chambre de combustions: le devant des soupapes pas l arriere ...
22mm
Never use break clean on your engine it will damage your valve steam seal.
Never heard of that and many mechanics do the way i did it :)
b12 chemtool easily dissolves carbon build up (on removed intake valves) because it will dissolve/swell rubber parts
Just i want the name of the song in the video man
Jadu jadu - Virgo ;)
Do you have catch cans ?
To sell or what? :)
Way to much work
Don’t risk this DIY job.
I do. That's why I made this full guide :)
Is350 doesnt have this problem right?
No, because of the port injection :)
Better to get the IS350
Hard to get in Europe, that's why i have the 250...:)
@@uszokrepper1 Same thing in Asia. Have you considered swapping engine?
No :) that isn't my style and i think than it would be easier to import an is350 or buy an ISf :)
How to get rid of carbon buildup:
Step 1: Sell 250 and buy a 350
I wanted to do that but in Europe..we have no 350's 😅
@@uszokrepper1 Wow man that sucks. I had a 250 and it was great, but very slow. I got a 350 now and it's better in every single way. More horsepower, no carbon buildup and more resale value.
@@Jedi_Lukehow often did you have to clean the carbon build up? Every few years?
@@joepearlzz8504 Depends on how much you drive it.
How often do you need to do this on a is250?
Not that often, but once every 100kkm would be nice :)
After you crank the engine by hand to open the valves, do you have to do anything to the metal intake manifold with the flaps to line up with the open valves when putting the engine back together? Or do you just put it back on with gaskets and there is nothing else to adjust?
Nothing :) just put the metal manifold back in, connect the wire harness from this metal manifold and that's it :) new gasket also but yeah...
Wooooo, i just put the engine back together and was worried i missed a step! Thank you for the help