Can you clean EGR valve without removing it? Spray vs. manual cleaning, before and after!

[@moremolecules]

A follow up that addresses most of your comments about MAF, rpms, spraying far from turbine: kzbin.info/www/bejne/bZ7MpZZ6aLRnosU Just to add to the video some afterthoughts. Yes, I did not have a helper to keep the rpms at ~1,500, so that could be a reason why it did not work. I did not think about it too much at the time, but probably should have had somebody to keep the rpms. It was not on purpose. It might have not worked on my particular engine, but it could work on yours. There might be several reasons, for example I had little carbon deposits, so it might not have been so effective, but if an EGR valve is quite blocked from carbon it might perform better. Another reason might be that my EGR is blocked and is simply shut constantly and I do not know about it, so nothing can go through it and hence the EGR valve was the same. I cannot do much about this, I have checked with Diagbox and it does not report problems, but you never know, the EGR valve might be faulty. So, take this video with a pinch of salt as it could well be that my experiment was wrong. Additionally, please do not use any sort of oven cleaner to clean the EGR valve, it is a bad advice that I have seen many times across youtube. The EGR valve is aluminium and most oven cleaners will have some combination of KOH or NaOH. KOH or NaOH will eat/dissolve the aluminium of the EGR valve and while it will look clean you may end up buying a new one. Any carb cleaner will do, but even better, use dishwashing liquid and an old toothbrush under the tap. Dishwashing liquid is a degreaser and will clean it safely! See here: kzbin.info/www/bejne/hIrUZGSwl8yJo5Y

[@carforumwanker]

it would take 20 years and would have to soaked in it ! lets not be dramatic

[@moremolecules]

For all those suggesting EGR blanking or delete here is a really good video that needs to be watched carefully before blanking or deleting the EGR: kzbin.info/www/bejne/fKPTqn-shdSXocU

[@moremolecules]

@@carforumwanker I am not saying that it will eat it completely, there will be micro-pores that will be easier to clog with carbon, so all in all you end up with more frequent cleaning.

[@carforumwanker]

@@moremolecules I’ve deleted all my diesels EGR’s cars have all run better . Thousands of people in the Uk have done the very same

[@moremolecules]

@@carforumwanker The thing is that is many people have done it does not need to be a good thing, right? How do you define "have all run better"? It is difficult to quantify, but the logic behind an EGR valve is pretty solid and how it operates.

[@davidbrown-eu895]

Thank you for taking the time to show that commercial cleaners often don’t deliver on their claims and to show the soap and water approach works so much better.

[@johndilloway9762]

Never seen a video that proves before and after, but results are as i expected, nothing! which makes sense if egr is not due to open then nothing will go through, but i think the majority will end up at intercooler, well done for being the one who finally proves it is a total waste of time and money, good video.

[@khalidacosta7133]

Nope all wrong, most of it will end up in the exhaust....

[@arturforever2060]

All product like this is only making money 💰 for big company. And do nothing. People believe for magic 🎩. But real is different. Nice video

[@totten330]

did he have a oil catch can because wouldn't anything that made it just be stuck in the catch can filter

[@MrDuanewarren]

Yeah exactly what I thought the only way I’ve managed to clean one in the past is a bowl of petrol and a brush just washed it out with that

[@paveljelinek772]

What does that mean "if egr is not due to open"????? It IS opened on idle so it should go through, the problem is that the spray gets burned during the ignition cycle so nothing really "washes" the egr.. Btw i just bought this little 'miracle' for my 1.0TSi, we're gonna clean the intake and valves with it, i wanted a carb cleaner for the job but they gave me this EGR/turbo cleaner (again, how is it gonna clean the turbo when everything gets burned during the ignition 🙄🙄🙄).. guyz anybody knows how often should i disassemble the turbo and give it proper cleaning? My mileage is 60k km btw but those valves get dirty as soon as 10k km so.. let's go for them

[@simont6439]

They call it EGR cleaner because that's what you want, hence they will sell it. It's the same in the grocery store. They don't sell food, they sell what you want to buy. Great video. It's just so logical why this would never work, mainly due to the speed of flow that makes , and the absence of abrasive action. But to see it tested with detailed before&after images is still so valuable.

[@moremolecules]

Yeah, it is capitalism at the end of the day, if you want something to buy they will sell it.

[@ianlloyd1182]

Thanks for taking the time to go through the whole process of cleaning the EGR Valve, a lot of work for you but very appreciated by those of us who do our own maintenance. Goodonya from Australia.

[@moremolecules]

Thanks mate ;-), appreciated

[@marlonradix7810]

Best Egr cleaning video hands down, the dedication, the editing before and after, you saved me a lot of time money. I'm subbed , wish I could like this twice.

[@davidwall6020]

I broke down in my Golf 5 TDI yesterday. It cut out and wouldnt restart, right in the middle of Worcester at rush hour, so I was not very pleased as you can imagine. AA man came and started it with a squirt of Bradex Easy Start up the big plastic intake pipe after removing a clip to get access into the tube. It fired instantly. He said the stall problem was probably caused by EGR valve being stuck open/ shut. I took the EGR off this morning to find the whole of it full of carbon. I could not believe how much carbon was in there!!. Literally a cupped handful of sticky carbon. Cleaned it all out with a blade and a brake cleaner spray can. Put it all back together and the engine not only sounds quieter but it pulls very much more powerfully. My Golf 5 TDI 1.9 PD had covered 107k miles and wasnt slow by any means but now its very much more rapid and smooth. I am an old motor enthusiast and have been messing with petrol engines for years. I have never seen such a mess inside an engine intake system. I can hardly believe the engine worked at all. So if you have an oldish TDI, take off the EGR and clean it out. As this man says there is no way a spray of this EGR cleaner would have removed this sticky carbon muck. I reckon the diameter of the throat of the EGR was closed down by 30% of cross sectional area and the EGR valve which lifts up under vacuum was not working at all. It is now. Taking the EGR off is a bit of a pain in places but you must do it. Dave

[@moremolecules]

Great advice 🙂

[@Sobin16]

Amazing dedication. The OP went to an extent of doing a before and after. This is the kind of video I was looking for all these while. EGR cleaning is such an underrated process. More people should be aware of why it's done and how it affects the performance, especially on high mileage cars. I have a Ford 1.5 TDCI diesel FIGO. This car is sold in Asian markets but I have seen the similar engine being used in Fiesta in the West. The first GEN FIGO sold in India had the same engine configuration as shown in this video. But the second gen FIGO has EGR placed in the most awkward place. It's right in front of the firewall, under the wiper motor. I searched the entire KZbin for a proper EGR dismantling video for 1.5 TDCI engine but no luck so far. I have seen only two videos from Mexico but then I don't understand their language and those videos weren't clear - shot in poor light with shakiest camera work. Hope the OP would post a EGR dismantling video for FORD 1.5 TDCI engine. Some of us DIY-ers would greatly benefit from learning how to do EGR service at home. Especially figuring out where EGR cooler mounts are and how to reach them without dismounting the engine from the car.

[@moremolecules]

Many thanks indeed for the good comment. Unortunately, I can only do the EGR on the car that I have.

[@numerouno.5445]

I am

[@philip.aocallaghan4602]

How can companies get away with selling false information? These so-called cleaners are not cheap to buy... yet they do absolutely nothing.. And maybe even damage engine components as a result of using them . Great video.

[@Jake-Latham]

​@@justdawnreborn In many cases, it's faster and easier to manually clean yourself, rather than use these cleaners. I don't see how it is to scare customers off DIY. This videographer has provided evidence showing that these cleaners don't work. Maybe you could make a video proving your claims?

[@TheALexSay]

these cleaners really work, especially with your pockets

[@andreaphillian3947]

They actually work, this guy didn’t use it correctly

[@mickeybiss]

Thanks so much for the effort you went through to show us not to bother with sprays on egr!

[@lgpete38]

The spray works when you use it on the bench to clean the valve, it's an aggressive cleaner that's why engine revs change

[@tthoy7338]

Great video, lots of effort to prove manual cleaning is the only way to do it correctly. Well done 👍

[@brokenspokesxl]

I was often tempted to buy egr/dpf cleaners from the store, thanks to your test it proves a total waste of your money, good job👍

[@CensorshipGenesis]

Point is that it "should" clean the EGR. But in reality it will do a much better job cleaning the carbon in the chamber! And that's a reality. ;-)

[@Latinnpassion]

Now this one of the best videos I’ve seen!!, very through and complete before and after of each application, we’ll done!!

[@moremolecules]

Thank you. Probably because I was also interested in whether it will work.

[@janipulkkinen8065]

Good video. Really nice that you took the time to show us the build up before and after using the spray cleaner. Results are making sense becouse i dont see a way that the cleaner could be making its way through the combustion chamber and up into the egr valve. And at least on my 2.0hdi the egr valve closes after ~8 to 10 seconds at idle to prevent clogging the intake manifold. And it seems quite impossible to be able to clean anything from the egr valve without taking it apart.

[@pedclarkemobile]

Got a 2.0d 08 Volvo, same engine, had the car 8 years, been a great car. Lately it's developed intermittent no start but a tip from a forum suggested tapping the hose feeding the throttle body, few taps with a small spanner & EGR closes - she starts straight away. Been putting off EGR removal & cleaning.

[@Armyveteran-q8g]

Wow! That was an incredible video. Thank you for your patience and time and doing that experiment. I've been researching this issue with the spray products myself and I was so pleased to come across your video. I myself would not have had the patience to do what you just did. It was incredibly informative and I can't thank you enough for doing it...

[@moremolecules]

Thank you very much indeed for the nice comment, much appreciated!

[@norwice]

Thank you for all the time you put into this. :-) You just saved me a lot of trouble... I'm about 100K into my second Renault Traffic. I got ripped off at least 3 times owning the first van, with my local garage insisting on replacing the egr... But this time I am prepared! :D :D Thanks again. Best of luck to you.

[@moremolecules]

All the best of luck🙂

[@acorndogs904]

I'm here due to a Renault traffic egr

[@angusnz7910]

Renault traffic…I’ve got a vivaro and you remove the EGR and turn it 1/3-1/2 (can’t remember) and refit. Plug it back in, computer still operates it as normal but it’s not passing crap though the engine. Technically a no no here where I am but I got sick of the garage ripping me a new one all the time and since reversed the van knows no difference, but it def runs smoother and better. Maybe not for all, but 100% worked for me and has been trouble free since (for a vivaro that is)

[@petergregory522]

Very good and thorough, I'll be stripping the EGR and cleaning it with my wife's toothbrush !!

[@moremolecules]

Haha, well yes, you could use your wife's toothbrush

[@daletinsley2954]

That's not fair ON THE TOOTH BRUSH 😊

[@arc9812]

I heard calcium is good for your teeth

[@trickyuk.5840]

Old video but good video, proves you cant beat manually cleaning parts. 👍

[@colauty2598]

Really good and informative, so interesting to see the before and after, thanks for the detail and taking your time to show !

[@moremolecules]

Hey Col, thank you very much and appreciate the comment!

[@leiflillandt1488]

​@@moremoleculesUnfortunately, there is no comments needed after this video. Here black is black, and white is white... Thank you very much for the time taken to show this.

Finally a video where one of these "magical" products doesn't do its magic. Bravo. Also, this EGR was fine and did not require cleaning.

[@moremolecules]

Yes, completely agree that is was relatively clean. The main puspose was to see if anything can be cleaned. Unfortunately, I do not have access to a vehicle that has properly blocked EGR valve.

[@louououou]

Cleaned up mine yesterday with a dedicated EGR cleaning product and I did the same test as you did. I can say that performing the light cleaning just by spraying the intake accomplishes nothing. I drove for 10min after spraying process at high revs and Before/After were identical. I performed a deep cleaning after with the same product spraying directly in the EGR and all carbon went away easily. It did its purpose, but had to be sprayed directly in the affected area. Thanks for the video!

[@moremolecules]

Absolutely right, the spray works when applied directly on the carbon deposits, no doubt about that, but somehow gets really either dilluted or burns in the combustion chamber and the cleaning properties are greatly diminished when it reaches the EGR.

[@cecilsabourin9462]

I generaly have faith in Wynn products ,but this is possitive proof that manual cleaning is the way to go ,no spray is going to do the job .Goosd video ,thanks

[@impaleds]

As lots of the other commenters I am very grateful of you making this video and taking great effort on documenting it with good video and pictures as good as you have here. Truly an old school youtuber content creator, making it proper and doing a good explanation in description and comment. And I know most guides asak to have above certain RPM, but since the travel distance is so far I will doubt it can be making that much difference increasing the rpm about 500-600rpm(think it should be below 2k to have the valve open, from what i generally read about EGR valve). Too bad my model is forcing me to remove drive shaft before getting to the EGR nuts and bolts, and I wont DIY that on my car since I am no mechanic. I will ask for a mechanic to get it done and just change the whole kit to be sure.

[@moremolecules]

Many thanks indeed for your comment and good words, really appreciate it! Here is a follow up of that video with addressing all the previous comments, e.g. rpm, drive in between, etc.: kzbin.info/www/bejne/bZ7MpZZ6aLRnosU Pretty much the same result.

[@jaysysumakaRatMaster3]

Thanks for taking the time to create such a detailed video. I now know this is a pointless option and will go ahead with getting the repair work done on the car.

[@stephenmason5682]

That's a lot of work by you for our benefit, much thanks! Great job.

[@MrTutunka]

WOW! You have gone above and beyond on this video. Incredible dedication. I always knew these products were made by snake oil salesmen and have never done in situ cleaning. This confirms my fears. AMAZING! Get some patio cleaner on that and all good.

[@aarong9349]

I wished I watched this video before buying egr valve cleaner for my Citroën c4 . Great video fella 👍

[@krzysztoftryka399]

Thanks for saving me the trouble of using spray cleaner. Manual cleaning it is - or replacement.

[@rogerwale4827]

Hi More Molecules, I have never seen so much attention to details in your replies and so many! you are a very factual & no nonsense kind of guy that takes the time to read & sensibly answer queries. with facts! well done.

[@moremolecules]

Thank you Roger! Really appreciated. I am scientist by trade or by day job kind of thing and it has nothing to do with cars or engineering. I kind of hate all the car-related youtube and other social media related to cars, so decided to do my own investigation of various things. Generally there is just little information about what works and what does not and how to do stuff. Unfortunately, youtube does not pay anywhere near enough to do this more often or do only car-related things.

[@tradie73]

Just had Ford clean my Ranger EGR. Wasn’t cheap. Was wondering how they did it so quickly. Now I know. Glad I found this video. I’m likely to pull my EGR out and do it properly as I’m expecting it to be still full of crap.

[@stever1053]

Well done for proving you cannot buy magic in a can.

[@novicenova]

Wrong. SEA FOAM. And using it properly. By warming running engine up to temp then set RPM to 2250 a can heavily. Shutdown engine wait 10min. The start engine spray another can & done.

[@andymat7359]

I've been gullible enough to buy a can of this crap before, also bought a couple of bottles of their injector cleaner years ago, It's not an easy job to take off an EGR valve, I did one on my old 2008 Ford Transit and the only way to get to it was from underneath jacked up on axle stands in the dark after work. It's an absolute travesty that these companies are literally making millions every year from us with their snake oil poroducts. Fair play and thanks for going through all that effort to make such a detailed video, good job.

[@floppyflipflop4605]

Excellent video, thankyou for taking the time and effort to help others save there hard earned cash from exaggerated claims from these manufacturers 👍

[@jorgegarison6662]

Excellent experiment and proof of these products scams car owners. Thank you so much Sir.

[@stuzbots-shed]

Great video. I really appreciate just how much effort you went to, dismantling and re-assembling that part of the engine, to run this test with the EGR in situ and show real world "before and after". It would have been so much easier just to spray the removed EGR with the cleaner or do the test without removing the EGR and then claim the engine was running better [as most of the other videos do]. So kudos for going the extra mile [or kilometre!] to conduct a definitive test. Seeing the amount of effort people have to go through to clean removed EGR valves manually, I've always doubted a couple of squirts from an aerosol would do much at all and you've just proved my suspicions. Even if they did work, surely they'd just shift all the crap out of the EGR valve and into the intake manifold anyway? So "kicking the carbon down the road"... to coin a phrase.

[@moremolecules]

Many thanks indeed for the comment, really appreciate it! I do sometimes get asked, does it run better afterwards. Yeah, it is subjective to say, oh, yeah it runs perfect now, it produces diesel now than consume, hahaha.

[@lgpete38]

At least someone has proved incorrect information..egr valve will only open when you drive it & not at tickover, that's why it's called that name .. thank for a good vid 👍

[@davidyoung9635]

Cheers mate thanks for taking the time to show the difference. Valve on valve off the karate kid would be very proud.

[@nicksullivan2212]

Thanks for taking the time to show how inefficient a spray cleaner can be. 👍👊🏻

[@petermorrison106]

Excellent work! I do mine tomorrow...manually! This was a very helpful demonstration.

[@chrsrans1]

This is a great video, it confirms what I’ve been thinking for years, those egr cleaners are a waste of time, they just don’t work. I just can’t imagine how such a small amount of egr cleaner could do anything given the speed that it actually passes through the egr valve,it’s a no brainier really when you think about it. Thanks for sharing this great video, maybe you could do a video on carbon cleaning to see if that process works or not, that would be interesting as I think companies are charging around £100 for a carbon clean. Thank you.

[@moremolecules]

I have not investigated carbon cleaning, but might have a look and test to see if it makes any difference.

[@maxmensah5877]

Carbon cleaning IS great robbery too !

[@moremolecules]

@@maxmensah5877 Probably. I have not tried it myself, but you never know...

[@Pete_Etheridge]

Thank you for taking the time to make this video and confirming my suspicions!

[@jamesmiller6977]

Well done, and thank you for all the hard work you put in here. I will take the EGR valve off my car and clean it by hand!

[@johnminshell6532]

Thanks , you have the satisfaction knowing it is absolutely clean and ready for thousands more miles .

[@StaRenata]

Great video. I also dropped the gasket and got it lost on the engine and found it 3 days later still there stuck in starter after driving it for many hours 🤣🤣

[@rcclimited3924]

Great video, an excellent demo proving that these products are a waste of money. Thanks for sharing

[@andybeckett4480]

Took out and manually cleaned a fairly filthy EGR valve and throttle body from my pal's VW Passat 2.0TDI last week. Used the Wynn's product with a toothbrush, took about 1/2 hr scrubbing. Can't imagine just spraying in the intake would have touched it.

[@karunagk1864]

Thank You for your time and explanation on quick cleaners. Manual cleaning is always the best.

[@Agorija]

I appreciate the methodology for this. Its basically structured like a science experiment. Also, that stuff is bunk. Thank you for the video. I wont waste my money.

[@moremolecules]

Haha, thank you for the compliment, I am a scientist by trade, so I naturally try to do the same in my channel or my little experiments with my car.

[@Agorija]

@@moremolecules I'm in college studying for a Bachelors in Biology hopefully to get into research. Very cool.

[@moremolecules]

@@Agorija Haha, good luck with the studies! I suspect a wiser career move is to study the Biology, but gradually move to analysis of data or in other words, bioinformatics/statistical analysis. Better career move, fewer people to compete with and higher salary. It goes without saying that you still analyse biological data.

[@Agorija]

@moremolecules I'm actually learning python on my own time for bioinformatics. I have the same suspicion.

[@moremolecules]

@@Agorija R is probably better to learn, but Python to start with will do. Sincere good luck!

[@isakisak7310]

Very interesting video. Thanks for sharing and the time and effort put in to show us how rubbish these cleaning products are. I don’t know how these companies get away with selling products like these that don’t work. Its daylight robbery. Thanks for the video and I will be spending my money on a good toothbrush. Much appreciated video. Thank you.

[@dragop7913]

Videos like this is the reason why I subscribed to your channel,a while back.Thank you and keep it going.Much appreciated.

[@moremolecules]

Yes, I will do a few of these in the next few months. I have quite a few ideas, just that time is short and one-man-band kind of thing 🙂

[@bernalbant]

Great REALITY show - what you see is what you get!!!

[@andrewbarnard2417]

Thanks for your effort with this. I have bought the same Wynn’s product to use on my car - obviously a complete waste of time so I won’t be wasting time trying it. Great useful video. Thank you.

[@nagyzoltan3973]

I think you have used the Snake Oil brand.....this is what i expected. Well done, thank you for your great work.

[@hienata76]

A better test cannot be made. Well done👌

[@moremolecules]

Ahh, yes it can and I am doing it, have to do the editing only, next video 🙂

[@stevehunt9703]

Great Job. It shows why dealers take them apart to clean them if they could spray something in without disassembly and make more money they would be doing it. Once again thankyou.

[@josephquillen3208]

really great and informational video !! I was just getting ready to clean egr valve & wondered about the spray products ? After seeing your video I will do a complete manual cleaning !!! Thankyou so much!!

[@automatic7713]

Fantastic proof..EGR problems are so common, so WHY don't the manufacturers design it so that the EGR valve is EASILY removeable for cleaning as part of a full service!

[@moremolecules]

Good question, but I suspect car manufacturers are in the business of selling cars rather than making them in a way that they last forever and it is easier for the customer. Normally an EGR valve starts to give problems at ~60-70,000 miles, so probably quite opportune timing for buying a new car. A lot of people will be: "this car is starting to give me problems, need a new one". If it was easy to clean, people would keep their cars longer.

[@doraexplora9046]

Well you did put that question to bed "Do these off the shelf sprays work?" The answer is a resounding "NO!". I really really wished they had doe a half responsible job like a carb cleaner does on a Carburetor. I can handle manually cleaning the valve as part of a routine maintenance. But the idea of spraying IN BETWEEN SERVICES WOUD HAVE BEEN IDEAL. So I'll just add that task to the maintenance schedule.

[@arnoldrimmer9161]

Thanks so much for this video 🙏 I'm going to attempt this tonight on my insignia 🤞

[@moremolecules]

Good luck👍

[@gazsto9510]

I did exactly the same thing with EGR gasket 17:10 and dropped it on the floor! Great video

[@e.b856]

Well done for your effort . Keep going to make such great and detailed video. I expected these results.I can't say thank you enough.

[@PaulRansonArt]

I repeated the same operation as you on a VW Golf tdi with similar results. I did have a helper holding the rev's up and spraying in short bursts close to the EGR valve ( so after the MAF ). The EGR was quite badly clogged and so I expected some sort of result. But TBH there was almost no change to the EGR valve. Strangly though the inlet manifold did show signs of some carbon removal. In the end I did a manual clean with break cleaner. Very messy job. As a follow up less than 3,000 miles later the EGR valve was stuck again and the car failed its MOT test on emissions. This time I fitted a new valve. they're not too expensive and the job took less than an hour. As opposed to 3 hours of mess. 🤔🤔

[@valdi1214]

Thanks for taking the time to do this. Excellent video. I will certainly be doing a manual clean.

[@TheJohnclive021]

Excellent video, will help a lot of people from wasting their money. Brilliant.

[@motor9203]

Thanks for the video bro . But just keeo in mind that when you run the engin with the Mass air flow disconnected this will put the egr in closed position . Which make a sense with this ending results

[@mrshoney2624]

Thankyou for taking the time and effort to prove the point, god bless you.

[@billycrook7207]

Fantastic video! Very well spoken and video documented. Great knowledge shown and very good to see a test and results. I’m gutted as I just spent £16 today on some JLM egr & air intake spray. Think il stick to cleaning manually and then using the spray every few months as a helpful maintenance option. Great video mate 👍🏼

[@madcat4563]

9:39 That got a chuckle out of me. It's exactly the same as before. The EGR cleaner just made the carbon build up a lighter shade of black.

[@Anthony9592]

Great job, Brother.. Thank you for taking the trouble to prove that EGR cleaner is a waste of money...😆

[@scabbycatcat4202]

Thanks very much for going to the trouble of actually proving what a product does or DOES NOT do. Maximum Respect

[@Skyline1986.]

Thank u so much & really appreciate ur effort bro, u are v much into detail... I haven't seen anyone has done a such a detail video where even a small kid can undtnd what is explained..Keep up ur good work bro...

[@moremolecules]

Thank you for the really good words, really appreciated!

[@glencoe8251]

Excellent video, you did a lot of work to get this answer. Well done.

[@bruskdersim1720]

I was actually going to buy that product but not anymore. Great video

[@skip741x3]

"Its literally done NOTHING!" Bro, you had me laughing so hard!

[@DobbsyLondon]

Thanks for the video, this has cemented which way I'll go. Manual clean for my SAAB 9-3. I will make sure to use my wifes pink toothbrush too 😜

[@stujham]

An excellent before and after comparison!

[@rinorm7709]

10 min spent is better than 10€ thrown by window or worse, good job !!

[@alisterwest6987]

Have to say all your videos are excellent and with so much detail too I have the xsara Picasso 16hdi what a nightmare to do due to the body shape very little room to work even with a mirror it's so tricky to manoeuvre however I managed to renew mine not looking forward to cleaning it again how often would you suggest to clean it thanks for the video on this job much appreciated from uk🇬🇧👍

[@moremolecules]

Hi Alister, many thanks indeed for the encouragement. I generally clean it every 2-years for a piece of mind, but it should last a few more years. It depends on the miles driven of course, my 2-years is ~16-20k miles, a bit less with covid now.

[@Diver68]

Thanks so much for your videos. You're absolutely amazing. Ciao from Italy

[@pkearns6230]

Excellent video my friend 😀 learnt a lot from you well done Paul k from Dublin

[@enfield7123]

One question did you give your wife her tooth brush back 😂

[@moremolecules]

Haha, yeah, just brushed off the carbon particles aside.

Thank you for your time and work, showing us this video! Best example!

[@USmetallist]

😊👌 thank you for the DOUBLE assembly-disassembly test and tutorial

[@slypig24]

Thanks for the test, because any spray will be immediately drawn into the air intake manifold and the cylinders.

[@samwilliams6843]

Can you do a video on how to remove the egr? Step by step

[@moremolecules]

There is one, and it is step by step: kzbin.info/www/bejne/rYW0pYmAetZ6jqs

[@DnBGenie]

This is such a good video, really debating doing the manual clean on my 2009 Mk6 golf 😁

[@moremolecules]

Many thanks indeed for the good words, appreciated! Do it, manual is the best and being 2009, probably is in a need of a good clean.

[@Tesstickles101]

Great Video.. Made me realize i need to get my hands dirty and get in the valve

[@TrailVapor]

Actually you need to spray at the other end of the air hose nearer the turbo otherwise you've just cleaned the air pipes only. Mannol intake cleaner also works but nothing beats physical cleaning.

[@moremolecules]

It does not matter where one sprays. It is not that it can go anywhere else. Everything will pool in the intercooler and some will go to the intake. Even if it evaporates the suction is towards the intake, so everything goes that way. I completely agree that nothing will beat the manual cleaning.

[@adriantoole4601]

Great video, made my mind up not to use a spray, but the egr on my santa fe is a nightmare to get at

[@paolozmm]

Like you say it’s best to do it all manually. That stuff does actually work well if you take off the EGR and take out the gunk and then use the spray to remove the last of the gunk.

[@dirkvanbesien]

Very good and honest video. Indeed all the sprays are Just a waste off time and money.

[@moremolecules]

Thank you!

[@sicks6six]

well-made video, thought out and executed properly so the viewer can make his own mind up, more of the same,

[@davidwall6020]

Super video , well done for going through all that dismantling for us. Very good.

[@moremolecules]

Thank you, appreciate the good words.

[@arthunterns]

My previous car had 1.9dci engine from 2001, EGR valve was easy to remove. I have cleaned it once every six month. I have 2.0hdi for almost 5 years. EGR valve is way back, behind engine, cant access it. Last year garage has change me heat plugs which are pretty much near EGR so I had a chance to see it.

[@moremolecules]

Yes, it is a bit difficult to get to, but not impossible :-)

[@paveljelinek772]

Just bought the spray, thought i'd use it like dismantle the egr, then spray.. it says dismantle the hose between throttle and turbo, there is a superschlauch that goes inside, turn on the engine, idle it, then hit the gas button (spray it).. i'll be glad if it cleans the intake + valves since you can always dismantle the egr manually..

[@moremolecules]

Good luck with that.

[@colinsmith8572]

Great video, I love the before and after pictures, very clear and easy to follow, top man.

[@binagarten4667]

Most excellent video. You earnt yourself a new subscriber!

[@moremolecules]

Many thanks indeed!

[@miketaylor803]

thanks for taking the time and effort to make this video - it's really informative (Btw your English is excellent - I wish i could master another language like you have )

[@moremolecules]

Many thansk indeed mike for the encouragement!

[@ciproty]

This EGR is clean compared to VW's EGR. In cars in the range, EGR becomes clogged with gelatinous paste of oil and smoke. In your Peugeot, carbon is dry, meaning your engine burns very well. In the LM product it is specified that the engine must be kept at 2000 rpm and the spray period should be 2 - 3 seconds. Now my VW 2.0 tdi CR engine with more than 250 thousand km, makes figures periodically. I will test on VW but with another product from Liqui Molly. All good !

[@SelyoDz]

Yeah, I agree with you man...much better manual cleaning ... like I did in my car 💪💪💪