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

EGR intake spray (aka cleaning the EGR without removing) vs. toothbrush. Can you clean the EGR valve in 1.6HDi engine without dismantling?
This is a video showing how dirty the EGR valve is in a 1.6HDi or the same as 1.6TDCi and then spraying diesel EGR cleaner and showing again how clean the EGR valve is after. I am also showing how clean the EGR valve is after manual cleaning using just a toothbrush and simple dishwashing liquid. The car is a 1.6HDi Peugeot Partner 2007 (90bhp; M59; 9HXC engine; ~106,000 miles or ~171,000 km). The engine is the same as in a Citroen Berlingo from the same year and also several other cars, e.g. Ford, Volvo, Mini, Suzuku, Mazda 3. This guide should be similar to other Peugeot and Citroen cars, also Ford 1.6TDCi, apart from the position of the airbox filter.
A follow up video that addresses all the comments about MAF, spraying far from turbine, rpms: • Can You REALLY Clean a...
This is a replacement EGR valve that I replaced ~2 years ago. I have travelled ~10,000 miles or ~16,000 km since then. The carbon build up in the EGR valve is from this mileage.
All my car-related purchases: www.amazon.co.uk/shop/moremol...
If you find this video useful, buy me a coffee: www.paypal.com/paypalme/morem...
This EGR valve was a replacement that I used and it was HELLA (amaon UK): amzn.to/2MJFLFm or ebay: ebay.us/cyg8kB
The Clic-R tool to undo the clic-r clamp, Draper 89791 (amazon UK): amzn.to/2pl6Oi5 or ebay: ebay.us/tWLSZq
The replacement EGR clic-r clamp that I used for easier removal in future (amazon UK): amzn.to/3Nokimf or ebay: ebay.us/O8RSAS (Peugeot/Citroen part number: 1628 3J)
The Diesel Fuel Filter: Delphi HDF939 (amazon UK): amzn.to/2ORSsR1 or ebay: ebay.us/6Fp3oR or a Bosch filter will also work (amazon UK): amzn.to/3GXgIta or ebay: ebay.us/tKkrdL
EGR valve bolts Peugeot/Citroen part number: 162793 (ebay: ebay.us/sOGVPY)
14 pcs E Star Torx Socket Set for the EGR valve bolts (amazon UK): amzn.to/3oZFnsQ or ebay: ebay.us/Bp0KPR
Wynn's Diesel EGR valve cleaner (amazon UK): amzn.to/33xTaHh or ebay: ebay.us/MEKvAH
00:00 - 02:06 Introduction
02:06 - 02:49 Removing the EGR valve
02:49 - 04:43 EGR before!
04:43 - 05:50 Putting the EGR back
05:50 - 07:12 Preparing for spraying the EGR cleaner
07:12 - 09:01 Spraying the EGR cleaner
09:01 - 09:31 Removing the EGR valve (2nd time)
09:31 - 11:27 EGR after!
11:27 - 13:03 Cleaning the EGR manually
13:03 - 16:07 Before and After compared!
16:07 - 17:01 Final words
17:01 - 17:53 Bloopers
#HDi #EGR #HDiEGR
Disclaimer: Use the information provided in this video at Your Own Risk. More molecules provides this video for informational purposes only and assumes no liability for any damage or loss incurred as a result of the use of the information or tools presented in this video. The information provided here may contain inaccuracies and more molecules cannot guarantee the correctness or reliability of the content.
As an Amazon Associate I earn from qualifying purchases. As such I have included affiliate links that may earn a small commission if you click through and make a purchase. I am an independent youtuber and I am in no way influenced by any advertiser or commercial initiative.
As an Ebay Partner when you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

[@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.

[@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

[@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 🙂

[@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

[@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?

[@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.

[@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.

[@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

[@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

[@tthoy7338]

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

[@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.

[@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

[@brokenspokesxl1164]

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👍

[@stephenmason5682]

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

[@karunagk1864]

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

[@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.

[@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.

[@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)

[@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.

[@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 🙂

[@valdi1214]

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

[@johnminshell6532]

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

[@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.

[@stujham]

An excellent before and after comparison!

[@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.

[@petermorrison106]

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

[@nicksullivan2212]

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

[@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.

[@gazsto9510]

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

[@bobowofol]

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.

[@glencoe8251]

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

[@floppyflipflop4605]

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

[@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.

[@aarong9349]

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

[@felipegil7199]

Very well illustrated Thank you for the time and effort you put into it

[@johnlentzos6132]

Another excellent and helpful video! thank you!!!

[@rcclimited3924]

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

[@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!

[@antoniocruz5714]

Nice work, as always! Thanks for share with us.

[@Diver68]

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

[@TheJohnclive021]

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

[@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.

[@bernalbant]

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

[@davidwall6020]

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

[@moremolecules]

Thank you, appreciate the good words.

[@officialdjhoody]

Great vid! Always wondered if this kind of stuff works. Thankyou so much for making 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.

[@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.

[@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 🙂

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

[@garymeneely9056]

Absolutely brilliant, so easy to see that these overhyped products simply do not work, you may as well have sprayed fresh air into the system. You have made a fantastic easy to understand video and I "doff my hat" to you sir. The multi millions that are wasted on these spray's no doubt yearly by people like me thinking that they actually work, when in reality I'm pouring my money down the drain.

[@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!!

[@Taxita]

Very informative. Thanks for the hard work.

[@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 👍🏼

[@davidyoung9635]

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

[@krzysztoftryka399]

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

[@dorugenova]

My highest respect for your work!

[@moremolecules]

Haha, thank you for the vote of confidence :-)

[@pkearns6230]

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

[@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

[@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!

[@yoser30]

Deadly video, thanks for the effort.

[@rkghmusic4092]

Informative and educative. Thank you so much

[@paulhayestiling2214]

Thank you very much for such an informative video. Well done. Paul in Ireland

[@frankobrien9124]

loved to see all the screw clamps instead of the hard to open spring clamps. i replace mine as i remove any spring ones.

[@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!

[@ephraimcamacho9600]

Thanks for your honesty!! Great video great info!! Make more videos you did a great job!!!

[@Tesstickles101]

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

[@sunni9094]

Thank you my brother for your honesty

[@shlakser]

Amazing video, keep the good content coming 👍

[@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.

[@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.

[@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 🤣🤣

[@arnoldrimmer9161]

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

[@moremolecules]

Good luck👍

[@left4944]

Great video. A lot of effort to prove this. Thank you.

[@moremolecules]

Many thanks indeed for the appreciation!

[@SelyoDz]

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

[@thebest1767]

It’s eye opener content , thanks

[@jorgegarison6662]

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

[@paulwitham8026]

Well done great test thanks for spending time and money to help others what a star 🌟

[@alinbcu]

best egr cleaning video

[@GarageKing]

Excellent video !!!

[@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.

[@binagarten4667]

Most excellent video. You earnt yourself a new subscriber!

[@moremolecules]

Many thanks indeed!

[@erlanders1-bo9jk]

Excellent video. Thanks. 🙏👍

[@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.

[@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

[@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!

[@sicks6six]

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

[@TheMrBennito]

great, meticulate approach, thank you! i have a renault dci 1.5, most likely a similar approach

[@moremolecules]

Yes, it should be a similar approach

[@fradrake11]

Liked and subscribed. A great informative video. Well done. 👍

[@dayaratna11]

Thanks. Clear and helpful.

[@leoncronin3750]

Awesome effort. Thank you very much

[@adik9441]

Great video a lot of effort goes in making such videos, Many thanks

[@moremolecules]

Many thanks indeed, really appreciated that someone appreciates the effort. Thank you!

[@kennymacm3031]

Thanks for this, you saved me some money

[@joseantoniofajardo1808]

Excelente video,los sprays no hacen milagros,un saludo

[@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

[@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. 🤔🤔

[@miketransporter5638]

I have same problem and this huys saved me the bother of using the spray

[@homeguy4]

Great video...I've got to do that on my VW 2.0 TDI

[@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 😜

[@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 👍

[@colinsmith8572]

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