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Scotty Kilmer so I have a Honda Civic hatchback sport and I really like the sound of venting to the atmosphere by replacing the blow off valve and I want your opinion because your the one with more knowledge
Toxic SkillzZz That depends on the part you choose. A "good" aftermarket bov (blow off valve) will by no means "harm" the engine but a "bad" one will possibly leak or now vent correctly causing excess pressures or simply wasting boost. It's worth doing some reading and researching which brand or part is recommended for your application and personally I would have a professional do the work. That way you actually have something to fall back on and not simply my warranty-less advice/opinions. The "downside" is you will is turbo lag potential. That full boost drop whoosh can be the result of full boost being dripped between changes thus creating further lag. It's defiantly worth speaking to a tuning shop to get some "your car and choices" advice and quotes. That sound is worth pursuing though I must agree!
Thank you for the extreme helpful reply. Further more do you know anything about the brand Bomba Racing ? Do you think it’s a good blow off valve or no ? Or you don’t know about it ?
I did this to my 2004 SUV and my 2000 Century and all I can say Scotty knows what he"s talking about. I went for a ride on the freeway and they both ran like a champ. Wow I'm impressed! Scotty and Chris Fix know whats up!!!
Excellent description and explanation of valve cleaning procedure! As usual, I view your videos before performing regular maintenance of my 2002 honda crv. This worked perfectly! It corrected a rough and low idle issue as well as quieted engine operating noise. A+
Hey Scotty, I definitely have black carbon build up in my lungs from smoking cigarettes for the past 20 years. You think if I sprayed some of that CRC down my windpipe and ran for 20 minutes would clean up the black tar thats on my lungs.
thank you scotty! this worked on my wifes 2011 vw tiguan. the dealer wanted $800 to clean the valves. got a can of this and took my time, got my scanner cleared the codes and drove on the freeway for about 20min no more check engine light. thanks again!
Yep, I'm not making this stuff up. It's really a great cleaner, I would have gotten more excited in the video but then I suppose people would say I was making it all up.
Did you spray the CRC directly in the throttle body for your wife's Tiguan?? I've been wanting to trade out my Civic for a Tiguan but was really hesitant because of all the mechanical issues I read about the Tiguan's GDI.
please dont get one! its been in and out of the dealer more times i can count, the headlight wiring needs to be replaced already because the coating on the wiring is flaking off, had to spray plasta dip on it for a temporary fix. i disconnected the hose after the mas air flow sensor had my hunny press on the gas holding it at 2k rpm then sprayed the can took about 30 to 45 minutes. plus the check engine light came back on after 5 days probably needs a couple more cans of this stuff.
Sheesshh..yet another horror story with these cars! Thanks for the tip, I will really put that into consideration because I don't want to be in a money pit. My Civic is boring to drive but very reliable, the Tiguan seems fun to drive but has a possibility that it'll turn out to be just a huge, expensive, paper weight.
It is also good for gdi engines in kia, but the problem comes back, so you have to clean the valves every oil change, if not even sooner, specially if you use air conditioner which, in my case, makes things worse. Till some degree, with higher octane rating fuel you can prevent valve pinging, but sooner or later they'll need cleaning.
Thanx Scotty! I have a 2013 Hyundai Sonata that I use for business. Mostly highway driving. I do most of my own work but had never done this procedure before. The head mechanic at the Hyundai dealership was gracious enough to allow me to observe the procedure so I could do it myself next time. He did exactly what you just did. Thanx again!
they sure do, thanks to CRC i did. actually took almost 2 hours for short spray for 2 cans. BTW yes will smoke out exhaust at the end ( rev engine few times burns up blows out crap in engine/intake.. big improvement at idle. had too much carbon depoist on sparkplugs. No idea why , so changed plugs took for a drive 10 minute on highway per can says so. then feels like came out of repair shop. I BELIEVE IN YOU SCOTTY!!!! Denso spark plugs..
I cleaned my Kia 2.0 liter Turbo GDI with the CRC Intake Valve Cleaner. I used a vacuum line from the pcv valve. I drove it for over an hour after the one hour soaking period. It really runs like new. I did have to start and stop a few times to clear the check engine light. I plan to continue treatment every 10,000 miles.
Hello Scotty . I had this pinging sound with my 2006 Toyota Sienna with 180k miles and i did this method and solved the problem. It was kinda knocking sound and i knew it wasn’t my engine cause i changed oil every 3k miles . It was knocking or pinging at 1600 RPM And got it fixed
Spraying whole can is not necessary. My 2017 Sonata mileage dropped from 32 to 26mpg combined at 25K miles. I lead foot all the time. I bought 2 CRC cans. After treatment, mileage returned to 32mpg combined. Hot engine @ 2000rpm spray continuous till engine almost dies then turn off and let heat soak for an hour. Drive car for short trip and repeat 2 more times. I used 1/3 of the first can and got excellent results (32mpg again) and now WOT sets me back in the seat again. Engine hard starts and pings for the first block of driving during first treatment. After 3rd treatment, no more pinging, proof no more carbon breaking loose. My method gives great heat soak, blipping the spray can while engine remains running does little for heat soak. No ECM codes.
I have a 2016 sonata with 59k, never done this before. Did you have any issues afterwards? I'm worried about carbon chunks damaging the engine internally.
I have a 2016 Kia Optima 2.4 with 30000 miles and a 2015 Buick LaCrosse with a 3.6 vvt at 40000 miles. I’ve installed catchcans on both. I’ve also used CRC @every oil change. Synthetic oil every 4500 miles. The boroscope camera still shows each car with nice silver clean valves. No catalytic converters problems. My Buick gets 28 mpg my Kia gets 42 mpg.
Just followed these steps, and the hardest part was trying to recover the hose clamp that I dropped and got stuck somewhere near the transmission. Thank you for this simple tutorial.
@alexlindsey6446 It's not difficult at all. This is a 2-person job, however. One to hold the can and keep spraying, another to step on the gas pedal. I did it alone but it made it much harder. The only tool you'll need is something to loosen/tighten the hose clamp.
@@marloforreal I made a gas pedal holder out of a pvc pipe. 1. Put seat all the way back 2. Measure distance 3. Make pvc pipe that distance measured 4. Install pipe between front of seat and gas pedal 5. Press the forward electric seat adjustment button until rpms set at 2,000. You could probably use a piece of wood too, but inline the roundness of the pvc pipe, seems more stable.
TheVwguy87 if they had an intercooler oil will build up in the intercooler and act as catch can. I have a diesel turbocharged and when i clean the intercooler some oil is there but yes you are right.
Yes, catch-can, or re-route the vapors to air intake and plug intake manifold (sucking end). The strong vacuum of the engine is what causes the blow-by.
Works on Harley's too. My 2020 Fat Boy valves were clean on the stems due to injectors. But the rear of the valve head is a cruddy mess. And my additive is Techron. I wonder who's advise that was. 😂 We love you Scotty! ET1(SS/SW/MTS) US Navy, Ret.
Thanks Scotty for the details. I always enjoy watching your videos. I think there is an easier way to remove carbon deposits. You can simply cold start your engine, let it run for 30seconds to accumulate enough fuel vapors inside the cylinders. Shut it off and let it sit for two days where fuel vapor will slowly soften the carbon deposits. I often avoid using harsh chemicals to remove carbons because it is difficult to formulate one cleaner that is safe for all steels, gaskets and catalyst converters, not to mention the toxic fumes produced during the cleaning process and the risk of pitting on metal surfaces if the chemical contains acid or alkaline. Remember that carbon deposits have nothing to do with high rpm or driving on highway. Stoichiometric combustion (which means being gentle to the gas pedal during acceleration) is the key. Driving in the rain also helps burning off carbons away. Anyway, a thin layer of carbon on piston is good as it helps protect the piston surface from repeated thermal shock. Good luck!
Ray Yang, how is driving in rain remove carbon deposits??? 2. How can fuse clean up gunk on intake valves for GDI engine while fuel is sprayed directly into the combustion chamber
Edgar Adolph Under high humidity and high temperature and pressure conditions, carbon deposit will vaporize. Some people inject water mist into the throttle body for the same purpose. As far as GDI is concerned, if you let fuel vapor to fill up the combustion chamber, it will gradually reach the intake valve and soften the gunk. Hope this helps.
@@Ray_Yang182Maybe it helps also driving with high rpm on high humidity weather. High rpm means high flow of the humidity air through the intake manifold. Sorry for my bad English. I hope you will understand me.
That stuff and other brands like it just simply don't work if there is any reasonable amount of carbon build-up to get rid of. Tried this on a carboned up VW TDI and a friend tried it on his VW GTI. So a petrol engine and a diesel engine, good test. Didn't do anything at all so whipped the heads off both cars and cleaned the valves on the wire wheel side of a bench grinder. Ran a flexible line wire brush on a drill through the inlet and exhaust ports, all shiny clean. Cleaned out the EGR's and intake manifolds, both engines run like new again, power and torque restored, fuel consumption back to normal.
Cleans your valves, not the rest of your engine. Usually you don't need to have your engine cleaned, unless theres significant sludge buildup, in which case you probably do need to take the entire engine apart.
What?????? Take apart your engine to clean it????? No! You prevent it from getting dirty by using the proper oil and changing it at the correct interval.
Hey Scotty could you do a video on modern diesel engines, they have the same problem but about a 1000 times worse. It can get so bad that the entire intake manifold, intercooler and turbocharger becomes caked/clogged with carbon. Many believe the only solution is a properly designed oil air separator that has an actual replaceable filter element inside (i.e not just some steel wool), but the method you show in this video may also help with the valves themselves.
Hey Scotty I clean my throttle body and then after I spray the throttle body cleaner into my intake manifold when when I try to start the car it's not keeping up when it starts
this actually fixed my p0303 code my fusion kept throwing. It was popping up every day. i used a can of crc and i havent seen a code in 2 weeks so far.
I saw a video about cleaning valves and the mechanic was against using this procedure on turbo-charged engines because some particles of carbon could break off and damage the turbo rotor. Any opinions out there?
Yes Scotty I've been using this cleaning brand for years the valve intake and mass airflow sensor cleaner work great. Also sometimes I use Sea foam to do the same thing it's sometimes cheaper than this brand.
You're first say I never used it before then you say CRC is better. If you never use it before how do you know it's the superior? You're not getting paid by CRC are you?
pretty sweet video for us ecoboost guys. everyone knows carbon build up is a huge problem with ecoboost engines. im at 35k miles with mine and my intercooler needs to be cleaned from oil build up and im sure intake valves need some cleaning too. pesky modern turbo engines!
This may be ok for GDI, but is not ok for GTDI engines according to Ford. There are a few videos talking about this, but these cleaners can cause significant damage for GTDI engines. The cleaner can get past the rings into the oil where the contamination can harm the turbo bearings. Other issues can arise if a chunk of carbon breaks loose, goes through the engine and chews up the turbos. If the injection process causes the cats to get too hot, this too can cause turbo damage due to the proximity. It appears the safest solution is currently to manually clean the intake.
June Han if you are worried about the oil contamination simply change the oil after the cleaning. Also this could potentially cause a carbon particle to stick to a spark plug so it wouldn't hurt to install new plugs after the cleaning. especially if you get a misfire after the valve cleaning.
He's spraying it downstream from the compressor side of the turbo. It then passes the intake valves, into the cylinders, passes the exhaust valves and goes into the turbine side of the turbo. That's where any debris that has been dislodged can damage the turbine wheel.
That’s is ok to do just make sure you spray AFTER the MAF sensor. That’s how I do mine. Mine is due for a cleaning now too! I have over 100,000 miles on my Ford Focus so I do this as regular maintenance. Seems to help.
Hey Scotty, I’m curious if this method is safe for the turbo? Some people say chunks of carbon can break off the valves, then goes straight to turbo, & can damage it. Is this a concern? I’ve been driving my focus st for 95k miles and have never cleaned the valves, so there’s probably a lot of build up. So I’m just afraid of these “chunks” ruining my turbo. What do you think?
CRC GDI cleaner then a good old fashioned Italian Tune Up afterwards. For those who don't know that that is, you drive it like you stole it for a little bit. Blows that crap right out of it. For best results, I usually do this right before my oil changes. Do the treatment, drive the required miles then change the oil.
Do these hurt the spark plugs at all? I remember using something called Seafoam a few years back on an old car and a lot of people used to tell me to change the plugs afterwards.
One time I did clean my throttle body and all the shit went into the spark plugs and fouled them. Now I just take the throttle body off and clean it separately from the engine so the gunk doesn't get passed down. Although maybe driving the car hard and fast at highway speeds may have solved this problem.
Scotty- I have a Silverado 5.3 V8 DI, is it ok to spray directly into / through the throttle body or does it need to be the vacuum hose? Also- I hear so folks stating it may damage the cylinder heads when chunks of carbon fall into the combustion chamber. Any thoughts? Great channel-
I don't know about the cylinder head "problem" but I just did this for the first time on a GDI car with 136,500 miles on it and it blew grey soot out the back for 200 yards down the street! My car has never run better since I performed this! And it idles like a dream. Spray it in the manifold beyond the Mass Air equipment. I used the brake booster vacuum line where it ties into the intake manifold. I plan on doing this every other oil change or at 10,000 miles to KEEP those valves and intake ports cleaned out. CRC WORKS!
CRC has an instruction video on UA-cam. They say to spray it into the the air intake past the MAF sensor. Don’t spray before the sensor. I’m not real mechanical and not so sure pulling hoses off that I don’t know what they are. I just bought a new DI engine and plan to do this every 4 or 5 thousand miles as preventative maintenance to keep from getting carbon build up.
This may have been mentioned but to many comments to read through all. (Yes I am lazy) ;) I would simply like to add that while running down the highway that it may be a good idea to have your oil changed at that time as well. As i believe due to the "thin" nature of cleaner this could get into the oil and just for good measure add an oil change at the end of the process.
Hey besides a catch can, why has nobody designed a device that goes in line with the pcv intake, that meters cleaner (like seafoam/mystery oil mix) as you drive??
hey, thank you for helping us with fixin our cars i´ve got a question please!! i have a nissan with an benzin direct ingection system with 150 000 on it the question is: is this problem with the carbon bild on the valve just in the Diesel motors? or its also in Benzin motors? and if i want to clean the valves wich porduct can i use?
Hello, my 2005 honda Cr-v has a "long stuck" intake manifold control valve. Will this cleaner work on my vehicle if the runner is already stuck or is this cleaner more of a preventative thing? thanks!!
Hi Scotty, on the CRC bottle, it asks the user to spray behind the MAF sensor in the intake manifold. Will spray into vacuum line yield a better result? Also, how did you know that hose is the vacuum line to the intake by just looking at it?
In 2015 Ford was concerned that everyone would consider this process. They claimed it can heat up your Turbos, too nearly red hot whitch can cause serious, expensive repairs. Fordtechmakuloco was one Video I watched. I feel if I should trust your opinion, but this guy has me wondering…can u treasure me. I bought CRC Intake Valve & Turbo Cleaner an hour ago, now I find myself holding back using it.
Hey Scotty, What do you think about Toyota's D4S system? They use port and direct injection. Is this system the better solution to valve carboning up problem?
Hi Scotty. I am familiar/aware of issues regarding DI engine. 20 yrs ago one of my outboards(2 stroke) had it. Many issues of carbon build up behind the rings, resulting in powerhead failures. My outboard went through 2 powerheads during the warranty period(4 year). I traded it for Inboard. I am considering doing the intake/valve cleansing of my 2008 STS 3.6 DI engine. Do the deposits on the valves come off in small particles, or is there a risk of a 'chunk' coming off resulting in a valve not seating and the end result is a burnt valve?
What about the additive with your gas I just bought the Lucas brand fuel injector cleaner for my 96 thunderbird does this stuff really work? I know Lucas is a good brand but I was just wondering thanks scotty
I've used Wd-40 followed by sprays of ammonia and distilled water. 09 camry w/ 315k miles now... seemed to completely cure any/all oil burning that was formerly present.
Scotty, please do a follow up video w/ borescope so we can see true before and after videos. Also concerned about scoring up the sides of the combustion chamber. And, need some clarification and proof that I do not need to change the oil after using this product. I love the idea, would love to see this product succeed, but would love to see a little more proof that this product works and does not do harm.
Seafoam works if you're careful with it. 9 times out of 10, you don't need it, though. Carbon buildup extreme enough to affect performance usually means you have another issue somewhere, likely the carb is set too rich, or the air filter is blocked. What I prefer to seafoam, is water. Once the engine is warmed up, have someone keep the throttle at about 50%, and spray some water into the intake or carb, using a spray bottle or somesuch. If you're careful, it will work wonders. Just use a tiny amount each time or you risk hydrolocking the engine.
same with a lot of carbon clean companys a lot cause more issues than they solve. id rather spend a bit of time and take the head off the engine and clean it properly (also lets you check the headgasket+cylinders etc. im not a mechanic but have most of the tools i need along with torque info and a torque wrench ( dont just take the head off a car most use stretch bolts and they can break if you try to reuse them)
Makes perfect sense...We have the same problem on our direct injected two stroke outboards, even though there are no valves to plug up....But, gasoline is a great detergent and a bit of a coolant as well....I have always been afraid of spraying cleaners like this into my intake, fearing I might set off a code of affect the converter....But, I'm sure CRC has got these issues figured out though...
If you hear a light rattling sound when you shake the PCV valve, you don't need to replace it. If you hear nothing, you can replace it or clean it. Regular oil changes help it last longer before it gums up from the oil vapor that passes through it. Regular carburetor spray cleaner will clean the valve, or you can replace it for a few $. Let it dry for an hour before re-installing. It shouldn't have to be cleaned/replaced more than a few times in an engine's life. If the grommet around the valve is torn or hard, you should replace it (may be a dealer-only item).
Great video. Any new news on cleaning the intake valves on 2.3 liter Ford ecoboost engines? There's a lot of information now (in DEC 2024) that using spray cleaners into the intake can damage or destroy the turbo.
I have done this with seafoam on my 07 dakota, I have done it to older vehicles too but seafoam didn’t make the newer dakota smoke at all even at 187k miles
My lower intake butterfly's ( back bank only: all 3) are glued shut. Like super glued. I pried them loose using the runner control arm off the actuator. They stuck closed again. Now they are loose enough to move again. Can I use this CDC product to get them cleaner? The PVC and EGR are the culprits. Plus some blowby on the 105,000 mile Ford Windstar 3.8 . Got a new/used Actuator from the junk yard for $15 here in Detroit area. I could take the upper intake/ plenum off but its not leaking as of yet but is known too. I digest. Thanks for helping me out. You get me laughing so hard at some of those pictures you show! I'm subscribed now .
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Scotty Kilmer so I have a Honda Civic hatchback sport and I really like the sound of venting to the atmosphere by replacing the blow off valve and I want your opinion because your the one with more knowledge
Toxic SkillzZz if you're going to that turbo sound it's best to install and aftermarket blow of valve removing it all together will not work.
Do you know if replacing it for an aftermarket one is bad for the car ? Does it affect anything?
Toxic SkillzZz That depends on the part you choose. A "good" aftermarket bov (blow off valve) will by no means "harm" the engine but a "bad" one will possibly leak or now vent correctly causing excess pressures or simply wasting boost. It's worth doing some reading and researching which brand or part is recommended for your application and personally I would have a professional do the work. That way you actually have something to fall back on and not simply my warranty-less advice/opinions.
The "downside" is you will is turbo lag potential. That full boost drop whoosh can be the result of full boost being dripped between changes thus creating further lag. It's defiantly worth speaking to a tuning shop to get some "your car and choices" advice and quotes.
That sound is worth pursuing though I must agree!
Thank you for the extreme helpful reply. Further more do you know anything about the brand Bomba Racing ? Do you think it’s a good blow off valve or no ? Or you don’t know about it ?
My car was fine 4 minutes ago, now I need to clean them valves!
HitsMetal 😂😂😂 same
i hear ya. clean my air filter and then do this.
I know The urge
Lol i swear this was my first thought
Like why😂😂
I did this to my 2004 SUV and my 2000 Century and all I can say Scotty knows what he"s talking about. I went for a ride on the freeway and they both ran like a champ. Wow I'm impressed! Scotty and Chris Fix know whats up!!!
My car's engine starts easier and runs ,much smoother and with more power when I have washed the car and vacuumed the carpets.
All jokes aside Scotty's videos are so simple and straight forward he really only puts in whats required. Thank you scotty.. rev up your engines xx
Excellent description and explanation of valve cleaning procedure! As usual, I view your videos before performing regular maintenance of my 2002 honda crv. This worked perfectly! It corrected a rough and low idle issue as well as quieted engine operating noise. A+
Hey Scotty, I definitely have black carbon build up in my lungs from smoking cigarettes for the past 20 years. You think if I sprayed some of that CRC down my windpipe and ran for 20 minutes would clean up the black tar thats on my lungs.
LOL
Daoud Aqtash I got a double lung transplant . That fixed it!
Daoud Aqtash Give it a try and report back.
lolol
Which type of injection is in your lungs 😹
thank you scotty! this worked on my wifes 2011 vw tiguan. the dealer wanted $800 to clean the valves. got a can of this and took my time, got my scanner cleared the codes and drove on the freeway for about 20min no more check engine light. thanks again!
Yep, I'm not making this stuff up. It's really a great cleaner, I would have gotten more excited in the video but then I suppose people would say I was making it all up.
Did you spray the CRC directly in the throttle body for your wife's Tiguan??
I've been wanting to trade out my Civic for a Tiguan but was really hesitant because of all the mechanical issues I read about the Tiguan's GDI.
please dont get one! its been in and out of the dealer more times i can count, the headlight wiring needs to be replaced already because the coating on the wiring is flaking off, had to spray plasta dip on it for a temporary fix. i disconnected the hose after the mas air flow sensor had my hunny press on the gas holding it at 2k rpm then sprayed the can took about 30 to 45 minutes. plus the check engine light came back on after 5 days probably needs a couple more cans of this stuff.
Sheesshh..yet another horror story with these cars! Thanks for the tip, I will really put that into consideration because I don't want to be in a money pit. My Civic is boring to drive but very reliable, the Tiguan seems fun to drive but has a possibility that it'll turn out to be just a huge, expensive, paper weight.
It is also good for gdi engines in kia, but the problem comes back, so you have to clean the valves every oil change, if not even sooner, specially if you use air conditioner which, in my case, makes things worse. Till some degree, with higher octane rating fuel you can prevent valve pinging, but sooner or later they'll need cleaning.
Thanx Scotty! I have a 2013 Hyundai Sonata that I use for business. Mostly highway driving. I do most of my own work but had never done this procedure before. The head mechanic at the Hyundai dealership was gracious enough to allow me to observe the procedure so I could do it myself next time. He did exactly what you just did. Thanx again!
I'm not always a fan of your opinions of cars but this video is exactly what I wanted to see. Most others on this topic are worthless.
Scotty has a way of doing things that makes it really nice to see his vids
I think its because hes yelling at us
@@tommycarrizal1656 It's just like working on the car with dad 🤣
they sure do, thanks to CRC i did. actually took almost 2 hours for short spray for 2 cans. BTW yes will smoke out exhaust at the end ( rev engine few times burns up blows out crap in engine/intake.. big improvement at idle. had too much carbon depoist on sparkplugs. No idea why , so changed plugs took for a drive 10 minute on highway per can says so. then feels like came out of repair shop. I BELIEVE IN YOU SCOTTY!!!! Denso spark plugs..
I cleaned my Kia 2.0 liter Turbo GDI with the CRC Intake Valve Cleaner. I used a vacuum line from the pcv valve. I drove it for over an hour after the one hour soaking period. It really runs like new. I did have to start and stop a few times to clear the check engine light. I plan to continue treatment every 10,000 miles.
What symptoms did you have before you cleaned it ?
That's good stuff. Great video Scotty!
Watchin and learning from Scotty in 2021. This is probably the most valuable channel on all of the UA-cams.
SCOTTY YOUR THE GREATEST!!!!!!!! WOOOOOOOOOO!!!!!!!!!!
I read that WOOOOOOOOOO!!!!!!!!!!!!!!!! like Ric Flair. WOOOOOOOOO!!!!!!!!!!!!
Jesse Foulk WOOOOOOOOOO!!!!!!!!!!!!!!!!!!!
Hello Scotty .
I had this pinging sound with my 2006 Toyota Sienna with 180k miles and i did this method and solved the problem.
It was kinda knocking sound and i knew it wasn’t my engine cause i changed oil every 3k miles .
It was knocking or pinging at 1600 RPM
And got it fixed
You're the man, Scotty! Just discovered your videos yesterday and I'm hooked
Spraying whole can is not necessary. My 2017 Sonata mileage dropped from 32 to 26mpg combined at 25K miles. I lead foot all the time. I bought 2 CRC cans. After treatment, mileage returned to 32mpg combined. Hot engine @ 2000rpm spray continuous till engine almost dies then turn off and let heat soak for an hour. Drive car for short trip and repeat 2 more times. I used 1/3 of the first can and got excellent results (32mpg again) and now WOT sets me back in the seat again. Engine hard starts and pings for the first block of driving during first treatment. After 3rd treatment, no more pinging, proof no more carbon breaking loose. My method gives great heat soak, blipping the spray can while engine remains running does little for heat soak. No ECM codes.
I have a 2016 sonata with 59k, never done this before. Did you have any issues afterwards? I'm worried about carbon chunks damaging the engine internally.
you are the best honest mechanic
فيه شاهي Wait till he invades your country with fake WMD's!
I have a 2016 Kia Optima 2.4 with 30000 miles and a 2015 Buick LaCrosse with a 3.6 vvt at 40000 miles. I’ve installed catchcans on both. I’ve also used CRC @every oil change. Synthetic oil every 4500 miles. The boroscope camera still shows each car with nice silver clean valves. No catalytic converters problems. My Buick gets 28 mpg my Kia gets 42 mpg.
I sprayed it up my tailpipe to clean the exhaust valves.
SilverDollarSaloon
Sure you did....😜
Don't forget to lube the muffler bearings too.
Just followed these steps, and the hardest part was trying to recover the hose clamp that I dropped and got stuck somewhere near the transmission. Thank you for this simple tutorial.
@alexlindsey6446 It's not difficult at all. This is a 2-person job, however. One to hold the can and keep spraying, another to step on the gas pedal. I did it alone but it made it much harder. The only tool you'll need is something to loosen/tighten the hose clamp.
@@marloforreal
I made a gas pedal holder out of a pvc pipe.
1. Put seat all the way back
2. Measure distance
3. Make pvc pipe that distance measured
4. Install pipe between front of seat and gas pedal
5. Press the forward electric seat adjustment button until rpms set at 2,000.
You could probably use a piece of wood too, but inline the roundness of the pvc pipe, seems more stable.
I personally think anyone with any GDI turbocharged engine should use a oil sperator or "catch can" to keep all the unburnt gunk off the valves.
TheVwguy87 if they had an intercooler oil will build up in the intercooler and act as catch can. I have a diesel turbocharged and when i clean the intercooler some oil is there but yes you are right.
Jay G I thought they had a pancaked intercooler behind the radiator. I need to find someone with one so I can take a good look.
catch can and water methanol injection
Yes, catch-can, or re-route the vapors to air intake and plug intake manifold (sucking end). The strong vacuum of the engine is what causes the blow-by.
Jay G is it a 7.3 powerstroke?
Works on Harley's too. My 2020 Fat Boy valves were clean on the stems due to injectors.
But the rear of the valve head is a cruddy mess.
And my additive is Techron. I wonder who's advise that was. 😂
We love you Scotty!
ET1(SS/SW/MTS) US Navy, Ret.
Thanks Scotty for the details. I always enjoy watching your videos. I think there is an easier way to remove carbon deposits. You can simply cold start your engine, let it run for 30seconds to accumulate enough fuel vapors inside the cylinders. Shut it off and let it sit for two days where fuel vapor will slowly soften the carbon deposits.
I often avoid using harsh chemicals to remove carbons because it is difficult to formulate one cleaner that is safe for all steels, gaskets and catalyst converters, not to mention the toxic fumes produced during the cleaning process and the risk of pitting on metal surfaces if the chemical contains acid or alkaline. Remember that carbon deposits have nothing to do with high rpm or driving on highway. Stoichiometric combustion (which means being gentle to the gas pedal during acceleration) is the key. Driving in the rain also helps burning off carbons away. Anyway, a thin layer of carbon on piston is good as it helps protect the piston surface from repeated thermal shock. Good luck!
Ray Yang, how is driving in rain remove carbon deposits??? 2. How can fuse clean up gunk on intake valves for GDI engine while fuel is sprayed directly into the combustion chamber
Edgar Adolph Under high humidity and high temperature and pressure conditions, carbon deposit will vaporize. Some people inject water mist into the throttle body for the same purpose. As far as GDI is concerned, if you let fuel vapor to fill up the combustion chamber, it will gradually reach the intake valve and soften the gunk. Hope this helps.
@@Ray_Yang182Maybe it helps also driving with high rpm on high humidity weather. High rpm means high flow of the humidity air
through the intake manifold. Sorry for my bad English. I hope you will understand me.
@@MKasap-te8vm yes, I do the same thing as you do.
That stuff and other brands like it just simply don't work if there is any reasonable amount of carbon build-up to get rid of. Tried this on a carboned up VW TDI and a friend tried it on his VW GTI. So a petrol engine and a diesel engine, good test. Didn't do anything at all so whipped the heads off both cars and cleaned the valves on the wire wheel side of a bench grinder. Ran a flexible line wire brush on a drill through the inlet and exhaust ports, all shiny clean. Cleaned out the EGR's and intake manifolds, both engines run like new again, power and torque restored, fuel consumption back to normal.
Omg other mechanics are really gonna hate this. cheap way to clean your engine instead of the exorbitant prices they charge
Cleans your valves, not the rest of your engine. Usually you don't need to have your engine cleaned, unless theres significant sludge buildup, in which case you probably do need to take the entire engine apart.
What?????? Take apart your engine to clean it????? No! You prevent it from getting dirty by using the proper oil and changing it at the correct interval.
cant beat a Toyota celica . bought mine back in 92 and has been my daily driver ever since. even 2018
Hey Scotty could you do a video on modern diesel engines, they have the same problem but about a 1000 times worse. It can get so bad that the entire intake manifold, intercooler and turbocharger becomes caked/clogged with carbon. Many believe the only solution is a properly designed oil air separator that has an actual replaceable filter element inside (i.e not just some steel wool), but the method you show in this video may also help with the valves themselves.
You don't do enough Miles and ain't kicking the car. Sounds like you need a petrol lol
Hey Scotty I clean my throttle body and then after I spray the throttle body cleaner into my intake manifold when when I try to start the car it's not keeping up when it starts
And after all this - which Scotty has done the right way, thank you - change the oil and filter!
you are the man Scotty thanks for the videos you have saved me so much money
this actually fixed my p0303 code my fusion kept throwing. It was popping up every day. i used a can of crc and i havent seen a code in 2 weeks so far.
when i grow up, i want to have a reply from scotty
It's been over three years. Hang in there kid.
@@ctube221 lol. You are mean. Lol
Cool, that's what Peter Pan said.
Have your balls dropped yet? I am not seeing Scotty arround, that's why I'm asking...
4yrs have pass did u get ur license now..maybe not cuz he hast replied yet 😅
Greatest mechanic of all time
I saw a video about cleaning valves and the mechanic was against using this procedure on turbo-charged engines because some particles of carbon could break off and damage the turbo rotor. Any opinions out there?
The CRC stuff is safe for turbos. Just follow directions to dissolve the carbon appropriately.
Scotty, you're right up there with John Davis of MotorWeek! You're a master of cars and character.
Yes Scotty I've been using this cleaning brand for years the valve intake and mass airflow sensor cleaner work great.
Also sometimes I use Sea foam to do the same thing it's sometimes cheaper than this brand.
Never use sea foam. CRC is better
You're first say I never used it before then you say CRC is better.
If you never use it before how do you know it's the superior?
You're not getting paid by CRC are you?
@@stephengoad3091he said never use it, not that he’s never used it
💥
Seafoam and CRC have the exact same ingredients
I'm 16 years old and is probably one of scotty's youngest viewers I love working on cars!
Smart, thanks for another innovative video Scott keep up the awesome work.
You know what work really good, SeaFoam works great...It works very good in cleaning the top end of my VVT engine of my Camry Le.
0:00 wife reveal
😂
I mean it could be a daughter... and you actually can't even tell it's a woman, so it could be a son?
@@PlatinumG well, he rides her...
pretty sweet video for us ecoboost guys. everyone knows carbon build up is a huge problem with ecoboost engines. im at 35k miles with mine and my intercooler needs to be cleaned from oil build up and im sure intake valves need some cleaning too. pesky modern turbo engines!
Will Scotty ever see my comment?
yes, here I am
Thanks Scotty thanks
Danny are you a creeeper ??? Mucccccchhh 😂😂😂😂
Scotty has replied to my comments several times.
Scotty is a youtube legend.
This is a great video fir anyone that would freak out about this. Thinking they would have to spend a LOT to have it done.
This may be ok for GDI, but is not ok for GTDI engines according to Ford. There are a few videos talking about this, but these cleaners can cause significant damage for GTDI engines. The cleaner can get past the rings into the oil where the contamination can harm the turbo bearings. Other issues can arise if a chunk of carbon breaks loose, goes through the engine and chews up the turbos. If the injection process causes the cats to get too hot, this too can cause turbo damage due to the proximity. It appears the safest solution is currently to manually clean the intake.
June Han the ecoboost he is doing this on is a turbo.
June Han and he is spraying it in downstream from the turbo so carbon cannot end up in the turbo.
June Han if you are worried about the oil contamination simply change the oil after the cleaning.
Also this could potentially cause a carbon particle to stick to a spark plug so it wouldn't hurt to install new plugs after the cleaning. especially if you get a misfire after the valve cleaning.
June Han then spray after the turbo.
He's spraying it downstream from the compressor side of the turbo. It then passes the intake valves, into the cylinders, passes the exhaust valves and goes into the turbine side of the turbo. That's where any debris that has been dislodged can damage the turbine wheel.
Actually it’s the PCV system that contaminates the valves. A catch can would go a long way to resolving this issue
I just sprayed this directly into the intake after the MAF sensor is that an ok way to do it?
Haha I've just posted the same question 😂👍
That’s is ok to do just make sure you spray AFTER the MAF sensor. That’s how I do mine. Mine is due for a cleaning now too! I have over 100,000 miles on my Ford Focus so I do this as regular maintenance. Seems to help.
The can recommend you can do that also
@@katherinemccarter8841 do you use half a can at a time>?
CRC has an instruction video on UA-cam that is how they show to do it. Air intake after the MAF sensor.
Used this on my HHR SS. It worked really well. Noticeable drivability improvement.
AKA Italian Tuneup except get on the highway and drive the throttle wide open for 10 minutes when your done.
Dont forget the speeding ticket...
Franco Vision and the possible reckless driving charge
Jason Burt bro Italians are car gurus and motorcycle ones... The most expensive car in the world is a ln Itlaian car...
buba426 just tell the police officer your cleaning off your carbon build up. lol
Franco Vision: That's a fact Jack, "jason Burt", probably drives a frigging old V.W. and never has to worry about speeding tickets, what a moron.
My wife has a Hyundai Elantra GT with direct injection. I will definitely be using this technique to clean the intake valves. Thanks.
Did it work?
Hey Scotty, I’m curious if this method is safe for the turbo? Some people say chunks of carbon can break off the valves, then goes straight to turbo, & can damage it. Is this a concern? I’ve been driving my focus st for 95k miles and have never cleaned the valves, so there’s probably a lot of build up. So I’m just afraid of these “chunks” ruining my turbo. What do you think?
CRC claims gdi cleaner softens the carbon
You should be injecting it after the turbo not before. Ideally some where between the inter cooler and the cylinder head.
@@davemorris6747 I think he meant exhaust valves not intake
You have a turbo in a focus? 😂
CRC GDI cleaner then a good old fashioned Italian Tune Up afterwards. For those who don't know that that is, you drive it like you stole it for a little bit. Blows that crap right out of it. For best results, I usually do this right before my oil changes. Do the treatment, drive the required miles then change the oil.
I have a turbo gdi engine, where do you recommend spraying?
Scotty I love your channel. You’re the best! I hope you live forever and never stop making videos👍
thanks man love your videos i learned alot from you
Great Vid Scotty. You think this is part of the factory maintenance schedule? Sure should be
Do these hurt the spark plugs at all? I remember using something called Seafoam a few years back on an old car and a lot of people used to tell me to change the plugs afterwards.
One time I did clean my throttle body and all the shit went into the spark plugs and fouled them. Now I just take the throttle body off and clean it separately from the engine so the gunk doesn't get passed down. Although maybe driving the car hard and fast at highway speeds may have solved this problem.
It's hard not to like this guy!
Scotty-
I have a Silverado 5.3 V8 DI, is it ok to spray directly into / through the throttle body or does it need to be the vacuum hose?
Also-
I hear so folks stating it may damage the cylinder heads when chunks of carbon fall into the combustion chamber. Any thoughts?
Great channel-
Ditto
I don't know about the cylinder head "problem" but I just did this for the first time on a GDI car with 136,500 miles on it and it blew grey soot out the back for 200 yards down the street! My car has never run better since I performed this! And it idles like a dream. Spray it in the manifold beyond the Mass Air equipment. I used the brake booster vacuum line where it ties into the intake manifold. I plan on doing this every other oil change or at 10,000 miles to KEEP those valves and intake ports cleaned out. CRC WORKS!
CRC has an instruction video on UA-cam. They say to spray it into the the air intake past the MAF sensor. Don’t spray before the sensor. I’m not real mechanical and not so sure pulling hoses off that I don’t know what they are. I just bought a new DI engine and plan to do this every 4 or 5 thousand miles as preventative maintenance to keep from getting carbon build up.
This may have been mentioned but to many comments to read through all. (Yes I am lazy) ;)
I would simply like to add that while running down the highway that it may be a good idea to have your oil changed at that time as well. As i believe due to the "thin" nature of cleaner this could get into the oil and just for good measure add an oil change at the end of the process.
Hey besides a catch can, why has nobody designed a device that goes in line with the pcv intake, that meters cleaner (like seafoam/mystery oil mix) as you drive??
Well there's methanol injection, which is kinda like that
Video brought to you by the good folks at CRC.
hey, thank you for helping us with fixin our cars
i´ve got a question please!!
i have a nissan with an benzin direct ingection system with 150 000 on it
the question is:
is this problem with the carbon bild on the valve just in the Diesel motors?
or its also in Benzin motors?
and if i want to clean the valves wich porduct can i use?
My Mitsubishi chariot idles roughly with an engine management light on.with a very High fuel consumption could this be the problem?
Excellent stuff for those Lexus IS250 GDI engines
Hello, my 2005 honda Cr-v has a "long stuck" intake manifold control valve. Will this cleaner work on my vehicle if the runner is already stuck or is this cleaner more of a preventative thing?
thanks!!
Thank you, socotty for the information. I have an ecoboost mustang 75000 miles just bought it .
I created a video on my experience too. This stuff worked great!
did you use a whole can>?
Assuming you were 101st, Thanks for your service. And excellent videos.
the screaming eagles
Hi Scotty, on the CRC bottle, it asks the user to spray behind the MAF sensor in the intake manifold. Will spray into vacuum line yield a better result? Also, how did you know that hose is the vacuum line to the intake by just looking at it?
I'm wondering the same thing
Is the maf sensor in line with the vacuum hose?
In 2015 Ford was concerned that everyone would consider this process. They claimed it can heat up your Turbos, too nearly red hot whitch can cause serious, expensive repairs. Fordtechmakuloco was one Video I watched. I feel if I should trust your opinion, but this guy has me wondering…can u treasure me.
I bought CRC Intake Valve & Turbo Cleaner an hour ago, now I find myself holding back using it.
Hey Scotty, What do you think about Toyota's D4S system? They use port and direct injection. Is this system the better solution to valve carboning up problem?
If it's Toyota Scotty is going to love it! LOL Actually I've read that Toyota's system works.
And where do those chunks of carbon deposits go? Into the exhaust and cat. converter. Could plug it up!
Hi Scotty. I am familiar/aware of issues regarding DI engine. 20 yrs ago one of my outboards(2 stroke) had it. Many issues of carbon build up behind the rings, resulting in powerhead failures. My outboard went through 2 powerheads during the warranty period(4 year). I traded it for Inboard. I am considering doing the intake/valve cleansing of my 2008 STS 3.6 DI engine. Do the deposits on the valves come off in small particles, or is there a risk of a 'chunk' coming off resulting in a valve not seating and the end result is a burnt valve?
14,000 miles and Scotty is already working on this ford
What about the additive with your gas I just bought the Lucas brand fuel injector cleaner for my 96 thunderbird does this stuff really work? I know Lucas is a good brand but I was just wondering thanks scotty
i dont no about lucas but nulon fuel cleaer valve ect works i put 1 bottle in every service i do 5000km
all true , in a GDI engine tank cleaner will not clean intake valves, but it will clean the inside of the engine
This additive will clean the fuel injectors, which are very expensive on GDI motors.
Love my old 22 year old Mercury. I use Top Tier gas and runs smooth as silk.
How did you keep the car at 2000 rpm while spraying the can?
The cat did it
Brick
I had my son do it. He's handy.
hola yason probably used his programing tools to set idle many HIGH END obd2 scanners can do that
hold the throttle cable
Really like your videos, to the point and not a lot of useless talk.
can you spray it directly into the throttle body?
Michael Harless no
why?
But Scotty did say on the video explanation "or if it's easier, you can spray the cleaner directly into the throttle body of the engine"
yes you can. This one was just too hard to access on its modern design
Derp lol but heat and oil through the pcv valve is ok.
I've used Wd-40 followed by sprays of ammonia and distilled water. 09 camry w/ 315k miles now... seemed to completely cure any/all oil burning that was formerly present.
This can be used on a Skyactiv engine? is a Mazda CX5 2013
all GDI ones
Scotty, please do a follow up video w/ borescope so we can see true before and after videos. Also concerned about scoring up the sides of the combustion chamber. And, need some clarification and proof that I do not need to change the oil after using this product. I love the idea, would love to see this product succeed, but would love to see a little more proof that this product works and does not do harm.
Do you recommend Seafoam engine cleaner
no, not a fan, I've seen problems occur with customers using it incorrectly
Seafoam works if you're careful with it. 9 times out of 10, you don't need it, though. Carbon buildup extreme enough to affect performance usually means you have another issue somewhere, likely the carb is set too rich, or the air filter is blocked.
What I prefer to seafoam, is water. Once the engine is warmed up, have someone keep the throttle at about 50%, and spray some water into the intake or carb, using a spray bottle or somesuch. If you're careful, it will work wonders. Just use a tiny amount each time or you risk hydrolocking the engine.
Scotty Kilmer what about BG44K
same with a lot of carbon clean companys a lot cause more issues than they solve. id rather spend a bit of time and take the head off the engine and clean it properly (also lets you check the headgasket+cylinders etc.
im not a mechanic but have most of the tools i need along with torque info and a torque wrench ( dont just take the head off a car most use stretch bolts and they can break if you try to reuse them)
andy ? I wish I had the time or willpower to pull an engine apart to remove carbon buildup
Your videos are the BEST!!!
What about the vvti engines of Toyota corolla? These are not GDI engines as far as I know.
of course it works on any engine, cause GDI engines are the hardest to clean, so it works great on normal engines too
Thanks much appreciated scotty.
+Scotty Kilmer how to sparay the cleaner in fuel injection e gasoline engine through throttle body or any another way
Makes perfect sense...We have the same problem on our direct injected two stroke outboards, even though there are no valves to plug up....But, gasoline is a great detergent and a bit of a coolant as well....I have always been afraid of spraying cleaners like this into my intake, fearing I might set off a code of affect the converter....But, I'm sure CRC has got these issues figured out though...
can we use the pcv valve hose ?
you can...but it is not recomended,you can get a check engine light for pcv malfunction
If you hear a light rattling sound when you shake the PCV valve, you don't need to replace it. If you hear nothing, you can replace it or clean it. Regular oil changes help it last longer before it gums up from the oil vapor that passes through it. Regular carburetor spray cleaner will clean the valve, or you can replace it for a few $. Let it dry for an hour before re-installing. It shouldn't have to be cleaned/replaced more than a few times in an engine's life. If the grommet around the valve is torn or hard, you should replace it (may be a dealer-only item).
Scotty!!! Aren't you the best?? You're a life saver
Blow up your engines!!! :P
lol
Thanks Scotty 🫡😎🤙🏼
1:14 😏
Really?? LMFAO!! 🤫😂😂🤣
Great video.
Any new news on cleaning the intake valves on 2.3 liter Ford ecoboost engines?
There's a lot of information now (in DEC 2024) that using spray cleaners into the intake can damage or destroy the turbo.
There’s no proof that this stuff will work
awesome video scotty u have really helped me restore my 2 generation dodge ram 1500!
Omg I had such a hard time with that product. Tha k u so much I'm gonna try this again
I have done this with seafoam on my 07 dakota, I have done it to older vehicles too but seafoam didn’t make the newer dakota smoke at all even at 187k miles
Scotty sure loves that UA-cam money $$$$$
I trust anyone who has a raspy voice and talks loud like Scotty
Car care tips from Geddy Lee?? Count me in working man!
My lower intake butterfly's ( back bank only: all 3) are glued shut. Like super glued. I pried them loose using the runner control arm off the actuator. They stuck closed again. Now they are loose enough to move again. Can I use this CDC product to get them cleaner? The PVC and EGR are the culprits. Plus some blowby on the 105,000 mile Ford Windstar 3.8 . Got a new/used Actuator from the junk yard for $15 here in Detroit area. I could take the upper intake/ plenum off but its not leaking as of yet but is known too. I digest. Thanks for helping me out. You get me laughing so hard at some of those pictures you show! I'm subscribed now .