How The VW 2.0t TSI PCV Valve Fails

For full show notes visit the blog at; goo.gl/XMQFo5
Today we look at the failure of the 2.0t TSI PCV valve. Join me today as we look at:
What the 2.0t PCV does, and needs to do
How the 2.0t PCV can fail
Signs on 2.0t PCV failure
Diagnosing 2.0t PCV failure
Common miles and age of 2.0t PCV failure
DIY or No DIY
Related part to replace
and more
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[@ksnod9779]

Thank you so much!!!!! I went through several videos that claimed to be diagnostic, but really weren't. You just clearly answered everything I was trying to figure out... Plus the added bonus of connecting my sudden oil leak. Wish I'd known that sooner. Time to get to checking my PCV!

[@maa..tttteo]

Wow 8 years later and this is very very useful thanks brother

[@buey2197]

7 years after this video came out and it came in clutch. Easy diagnosis with this info and so glad it’s not my intake manifold gasket.

[@asinbluesky]

Great guidance, thanks :-) My SEAT had a hunting idle, 'too lean' codes, and a wheezy air sound after engine off. The PCV looked a bit different, but I was able to carefully prise it apart, and voila a ripped diaphragm!

[@jlweck231978]

Thank you so much for the video. It saved me from going after an O2 sensor and saved my wife a lot of money. The diaphram had a torn gasket. Luckily a local part store had the Dorman part for $30. Quick and easy fix along with cheap. Thanks a ton!!

[@HumbleMechanic]

+Jim Weck II sweet!!!!

[@armando19]

+HumbleMechanic .. I just replaced it this morning. Car started doing a loud screeching noise two days ago. After checking your videos and diagnosing the problem, I ordered the part from Deutsche and replaced it myself. Very easy DYI and fix. Thank you for all the help you provide to us VW owners. (we really need it, lmao).

[@chriscosta5500]

You are by far my favorite mechanic on KZbin bro

[@wallyworld6249]

I have been troubleshooting multiple error codes for at least a year to the point where I either wanted to catch our Tiguan on fire or put a Free sign on it. The PCB valve fixed it all! My wife treats me like a hero. I could just give you a huge hug man. Thank you for such great instructional videos.

[@glasser2819]

your next engineered failure may not be as trivial... such as valve timing relatedcodes 😂 German engineers are doing their best to force drivers into buy Japanese cars... anyway it's still Bosch licensed tech regardless 👍🏻

[@hjc0706]

@@glasser2819 I was thinking the same, I Like how he underplays VW parts failures, turbo wastegate,pcv, diverter valve etc. Keeps mechanics busy. Plus the magically brittle plastic german manufacturers uses is just hilarious.

[@HumbleMechanic]

Look how old this video is ;)

[@hjc0706]

@@HumbleMechanic I went down the TSI rabbit hole.! :)

[@jerryx2000]

@@HumbleMechanic Hi mate my PCV valve works fine but the car has 200,000km. Would you recommend to change the PCV?

[@queenmaphanga4397]

You really saved me towing money and expensive no use mechanics ,who have been claiming that the sound comes from a faulty pulley or a worn fan-belt. Thanks so much...

[@TheStones1972]

Great Video exactly the issues I was having on my Audi B8 2.0 Turbo. Replaced and runs like new. I had been using oil as you mentioned as well. Thank you Kindly !

[@CarlosMartinez-dt3hd]

Im here again my friend. I been working on my 2007 2.0 T FSI And everytime its a new code.since i did the valve replacment crazy but its truth I dont know the reasons but im tired to spend a tons of time on this car . The goods its you are there to show me posibles causes and how to fix the problem. Tks my friend for this videos Keep doing it .

[@Machrc]

Thank you Humble Mechanic! Helped today so much in fixing my PCV valve and thanks for including how to test it.

[@HumbleMechanic]

AWESOME!

[@ratedrm1]

@@HumbleMechanic Do you recommend a pcv delete on an fsi engine

[@jaybee3098]

Great video Humble as always. A week or so ago my 2013 gti started idle revving. It would go up to over 2k rpm at stops a couple times before returning to normal. (750 rpm or so) Seeing this video and others forum posts on this problem made me think the pvc was the likely problem. Turns out my local auto store carries just the diaphragm hockey puck sized part of the pvc. So with a little work i snapped out the old and just like you mention, the diaphragm was torn. Put in the replacement and its back to normal. thanks again for your vids.

[@theeinsuranceguy]

My rs5 did the same thing right after I tuned it. And I recently had one night where it took a few times to turn over and smelled like it ran lean. Unfortunately mine requires 2 and they are like $600 total. Appreciate your comment. Pushing me to check this

[@noxious89123]

@@theeinsuranceguy How do you smell an engine running lean? You can smell it when it's rich, because it'll stink of fuel. But I'm not aware of a lean running engine producing any particular smell.

[@mmmStiegl]

Huge, huge help. My 2010 CC had been giving me the Cylinder 3 Misfire code several months ago. I assumed it was the notorious carbon buildup and not being ready to drop the cash for repair decided to experiment with a can of Seafoam. Problem solved, no codes for 3 months! A week ago my car died while backing out of the drive one morning. No code; effortless restart. ??? A few days ago I was hit with the P2187 code and a very erratic idle. Your mention of the whistling noise struck a note with me; I'd heard that sound off and on for about a month, always at idle after highway driving. It seems you have perfectly described my issue. Parts are ordered. Thanks for saving me a lot of money at the shop.

[@watchingitallhere]

The Seafoam usually works on most anything it fixed my sprained ankle on a ski trip once...after that your only hope is JB WELD.

[@joegugliotta9579]

This video was great as its given me the confidence to tackle the PCV replacememnt myself. Perth Australia

[@paulgrape1501]

Bro you're the MAN! Cant thank you enough! My 2011 has been in and out of 2 different shops 5 times and a total of 680$ later only to have to diagnose it myself...and it was the pcv valve! Seriously thank you again I can finally SHUT THIS WHISTLE OFF! My car literally sounds like a JETSONS car

[@bonnorbassidy8198]

Mine too! 😂 Not anymore

[@paulgrape1501]

@Bonnor Bassidy mine doesn't either anymore...I traded for a vw golf wagon. Love it.

[@patricenormandin9135]

Thanks for this video, it made me focus away from a suspected leaky turbo shaft. I found a fourth way the valve can fail; mine had significant carbon build-up on the diaphram and seat. After cleaning everything is back to normal.

[@stefankassbohrer2765]

Thanks for posting, it helped me. My 2009 Passat engine (1.8 TSI BZB) was shaking badly in the morning after a very cold night outside and had misfire error codes. In the end, the PVC was ok, but the crankshaft seal to the gearbox was leaking. I think the PVC froze and built up pressure. I replaced the PCV and the sealing ring as well as the clutch (reinforced version) at the same time (yes, the gearbox had to come out of course, grrr). Now the engine is running better than before. Best regards from southern Germany

[@Joeseppi636]

This guy is awesome thanks so much. I’ve been searching for hours and this is exactly what my problem was. It fixed it right away

[@Vdub-mc8pv]

Hey man keep up the good work!! I discovered your channel a month ago, and I'm hooked! I'm also a vw guy!

[@MrWaheedulHaque]

checkout my channel i love vw

[@blakemoresimon]

Sometimes despite for view on their channel.... hahaha

[@kenj.8897]

Thanks . Clear explanation , i believe mine has falled . 2015 jetta 1.8t 42,000 miles . Small valve cover leak.

[@okinawapajero3093]

WOW!! I need to thank you so much for this video, it saved my ass. I had NO clue why my 09 Jetta Wolfsburg was screaming at me (squealing so loud), I assumed a pulley or something belt related, never heard such a consistent squealing before. We than got a bunch of misfire error codes and P0507 which lead us to you. The car has been misfiring for over a year and no dealership or shop has been able to figure out why, I kept following the symptoms and replacing coil packs. Finally a shop told me "MAYBE" it's a dirty fuel injector which is a bigger fix on the wolfsburg because you have to take apart the engine more than most other cars. Instead of going down that route we started running fuel injector cleaner at every fill up for months, it seemed to help but the car still had misfires while starting up. We were driving around and the car seemed to be driving fine than out of thin air started the loudest squeal ever, of course we were downtown and everyone was looking at us like we were idiots. Long story short the only way I was sure of the problem was by watching your video and I found the diaphragm under the pcv valve cap/cover was torn just like you said they do. The PCV valve was also very built up with hydrocarbons and oil but I cleaned it out nicely. Now I'm looking for a replacement for the cap and diaphragm. I followed forums and people are recommending the "Dorman 917-064 PCV Diaphragm Repair Kit for Volkswagen" which you can get on amazon for less than $20. Hopefully that will come soon, car is out of service until than.

[@HumbleMechanic]

Okinawapajero Glad the video helped!!! Would you let me know what you think of that repair kit? Those valves are pricey, I would love to test another solution.

[@jeroenoort6148]

Thanx for the video . I have a golf mk5 1.4 tsi with 200 hp and i was thinking that the chain timing was of because it idle so weird. But the pcv valse was broken so that saved me al lot of work.

[@18768488889]

2012 GTi DSG just got Stratified Stage 2 tune now I got 2 code. Arm downpipe and Unitronic cold air intake. Been on cobb stage 2 for the longest while no problem until Stratified tune. P2187 and P050A

[@Dennis_1974]

Nice sign from my Town into the background. Greetings from Wolfsburg =)

[@CubanLink-vf5gh]

Dude I have watch most of all your videos good luck to you and and yours stay in touch love you bro Volkswagen yeah!!!!!!!!!!

[@TheHondaEngineer]

Excellent video and information. Mine just failed. Good thing I have a second vehicle while parts come in. Def a DIY part specially if you are a little bit mechanically inclined. Save the doh!

[@Espadazorz]

This series has been a life saver, thank you!

[@uzzomuzzo1031]

Hi there , what signs exactly you had on your engine ? Please i really need a help, thank you :)

[@Espadazorz]

@@uzzomuzzo1031 I haven't done much to mine yet, but I have oil leaks, engine noise, jerking when shifting gears, and more. But I actually posted this on the wrong video; I have a 2.5L MK5 Jetta (not a 2.0 engine like the one this video is for). So far, all I've done is replace the gaskets on my vacuum pump to fix my oil leak. I just did it 2 days ago but so far I think the oil leak is fixed. For now, at least.

[@kitsuvanphet8913]

@@Espadazorz does changing this pcv can solve jerking when shifting gear?

[@Espadazorz]

@@kitsuvanphet8913 No, it doesn't. I've actually still neglected that issue. From what I've read online it's either because I'm low on transmission fluid, or one of the internal components in the transmission is cracked.

[@puckpunk3six]

Got a "system lean at idle" code yesterday in my wife's 2013 tiguan. I suspected a vacuum leak. On inspection I took the engine cover off. I found that hole on the side of the PCV valve to be sucking in a bunch of air like you mentioned. I'll try the Diaphragm repair kit and see how it goes. Thanks!

[@puckpunk3six]

yup that was it! easiest fix ever. Autozone had the $30 diaphragm kit in stock. easiest fix ive had in a while

[@timj41]

My 2012 GTI had surging idle just last weekend. I am pretty sure it had a highway speed (60mph) misfire for a month or so, engine check light came on Sunday,got it repaired and new valve fitted next day. 58,000 miles. Warranty covered full cost, running much better now.

[@Kobryanccs]

You mentioned that one of these going bad can cause oil leaks in other areas like the main seal. Once corrected does this help with those leaks or once they start you need to address those as well?

[@kendash2000]

Great video! I had a Volvo V70 which caused main seal leak, with no codes when PCV went bad. $700 to repair, ouch! I have a 2009 Passat which should be a lot less expensive (if I get a code) and especially since I can replace myself. Have you done a rear main seal replacement video? Thanks.

[@jus3sixty]

You are what a KZbinr should be. Thanks for your help.

[@blee601]

hey thanks for all your videos. I was just wondering if a bad pcv would cause my 2008 tsi to bog down or stall if i remove the dip stick. I just replaced the rear main seal and the pcv valve 6 months ago.

[@matthewklueppel5074]

I put my finger over the weep hole and the pitch of the whistling changed. Any pressure applied to the cover the PCV caused the car to nearly stall. Bought the PCV, swapped it out. All is good. 45 minute job start to finish. Thank you for the great video, it saved me some $

[@HumbleMechanic]

+Matthew Klueppel heck yeah!! So glad I be able to help

[@philpots3216]

Hi, I have just replaced mine due to smoke and a little gudder at idle, my new 1 seems to have a very strong vacuum via oil cap, also there is a slight whilst at diaphram and when I put my finger on the small hole it stops, does this sound right or have I been sold a new faulty part...

[@ab2.0t64]

A great video ! Is it please possible to switch the pcv valve to a oil catch can?

[@samuelgonzalez5065]

Awesome videos man!!, can you do a video on the trotle position sensor

[@HumbleMechanic]

I’m pretty sure I have

[@Ihakmsnt]

thanks and great video! Would a failing PCV on a 2.0 TSi cause oil consumption? I just had to add 2 quarts of oil in under 2k miles since my last oil change.

[@djsanse031]

Hi Did you solve the oil consumption problem?

[@derekanderson6635]

Can you do a vid on the fuel pump control module ?? Thanks in advance buddy!

[@LinhTran-gf5yv]

Good ideal is to give us all the part number too, that will be a plus and big help

[@HumbleMechanic]

+Linh Tran I don't want to do that. Part numbers change all the time and have different applications. It's a great idea for sure. I just don't want someone to get the wrong part.

[@michaelmoody8149]

Thanks for the video. Definitely looks like a DIY replacement. I did however want to make sure I don't change mine unnecessarily. Would you always hear a whistling noise? Or for just some type failures? I suspect mine may be bad, but I don't hear a noise. I do have a leaking seal. Can a bad PCV cause a car to stall? My 2008 Passat LUX (2.0 TSI) with 173,000 miles will run for a bout 15 to 20 minutes and then stall. Once stalled, it will only run for a few minutes at a time. Originally, it would not even crank until it sat for 45+ minutes. I have replaced the fuel filter (definitely needed it), and now it will crank almost immediately, but not run for long. The feedback I've seen would indicate to next look at the Control Module for the in tank pump. Next would be the in tank pump and / or the high pressure pump. I did see someone mention that the PCV valve caused their passat to stall - not sure if that was unique or common.

[@rmetanes]

First of all, you are a legend! 2. Is it possible to replace the only the rubber diaphram? mine is sucking a little amount of air so I suspect the rubber is starting to fail? 3. Is itpossible to open the valve on top and inspect the rubber diaphram without totally recking the part?

[@jmgiron-5903]

I was able to replace the PCV diaphram with Dorman part number 917-064. Cost $18.00 Pried out the old and snapped in the new diaphram. Easy and stopped the vacuum leak. 2011 Audi A5 60K miles.

[@reezamohammed4788]

Have the whistling noise, losing boost along with a slight misfire. Replaced the diverter valve recently.

[@charleslawrence1930]

good video I think I may have to change mines my car run great no signal lights are mis fires the only problem is my car burn alot of oil I have a 2012 vw eos tsi engine 84k it's like every 600 miles are so I had to add oil the round circle piece u had in your had I do see a lil moisture from there

[@dhitch4561]

Love the show, lots of info!! Had my intake tube off the throttle body and noticed a lot of water pooled in the ribs. Could the PCV be failing causing that or is that something else? 2012 CC 2.0 TSI

[@xandaooficinaoficina2567]

bom dia chef so do brasil essa dica sua vai me ajudar bastante pois estou com uma vw tiguan 2011 e esta com esse assobio e tava me deixando louco otimo trabalho esse seu no youtube brigadao

[@kentshultz6157]

+HumbleMechanic I am looking to DIY this on my 2010 GTI, per your recommendation. Any idea if the generic OEMs (e.g. Vaico) are as good as the genuine VW part for this PCV valve (06H-103-495-AC)? Thanks so much - your videos are excellent!

[@PhillipCole]

Great Video? Do you know if there is much difference between this and the 1.4L TSI engine? I have a VW Golf V GT TSI 170. Which has a faulty PCV vavle however I cant seem to find a video on it.

[@randyaustin6934]

Thanks for posting this.

[@GIGABACHI]

I generally HATE VW Products but if i had to work on it your DIY videos make it A LOT more tolerable. Good work, long live the beard !

[@HumbleMechanic]

Rock on!!! they are not too bad ones you get to know them.

[@AoH9999]

Is it true, that if you take off your intake to do a carbon cleaning, and the carbon build up is moist and oily, that's a sign of a bad PVC? Recently read this somewhere, but I can't it again.

[@w0lvez1]

It's possible make the engine run properly without the PCV or even the Valve Cover installed. You just need to Disconnect the MAF sensor and Start the engine.

[@kerrywoolery9398]

what causes the squeeling sound that seems to come from inside the timming chain covefr ?? my PCV diaphram is shot and am replacing it in the morning but that sound is no where near the bad part ... i thought it was the ideler bearing at first ... anywazz thanks your video solved my problem anyhow

[@aaronyork6173]

Where is the PCV valve located on a 2014 TDI 2.0 ? Thanks for any info thank you so much

[@gabimoreno9895]

Hey Charles. Thanks for your videos. I have a question concerning the operation of the pcv system on the 2.0 Tfsi (BWA). If I disconnect the hose that goes to the intake manifold, should it still be vacuum in the crankcase (suction from the rear port that goes to the turbo inlet)?? If I do so on my car, I get a slight overpressure in the crankcase (I can feel it when I open the oil cap). So, I'm not sure if the crankcase vents properly when on boost... The car runs perfect, and I just complain about the oil consumption after 200.000km. Stock Pcv membrane broke at about 80.000km some years ago and I feel that oil consumption has increased since then with the new pcv. Running on 5w30 by the way. Maybe it's time to switch for a 5w40. Greetings from Catalonia.

[@jakemartin9289]

You save me money. Thank you.

[@raymondferguson1935]

Good video I was wondering if it could cause a p0068 code many thanks

[@alancase5189]

Just bought an 07 eos w/105300 miles. Drove it a week and added 1 1/2 qts with 750 miles. Went to the dealer after google check. I think I'll just replace the pcv after watching your video. Thank you.

[@doomsayer559]

Think I may change mine. Have some misfires dancing around cylinders. Already fixed a misfire once with new coil packs. Looked at this last night I see a bit of oil around the outside of the diaphragm. I don't think oil should be getting out of that.

[@AndreThompson925]

Just discovered that ours is failing on our 2010 CC. was going to have our mechanic do it but you're making me think I can do this.

[@HumbleMechanic]

+Andre Thompson It is a hand full of T30 torx and you have to remove the coils. no too bad. Be careful of the rear hose. It has a small nipple that likes to break.

[@AndreThompson925]

+HumbleMechanic I'll let you know how it goes.

[@maggieschuchardt7253]

great video. I have a p0301 code that re-occurs. changed coil packs, but code reappears. Also under heavy acceleration, the rpm's go nuts. rev high, rev low. then returns to normal. Any ideas?

[@bloodofthemartyrs3567]

I had a question I am hoping you can help me with. I have a 2010 Audi A4 with the TFSI engine. If my PCV is failing or going bad, how long could I safely drive? I would intend to replace it asap but unfortunately I am in a position where I wouldn't be able to immediately. Would going 100-200 miles be detrimental to the engine?

[@GodOfMedia]

Also, had my first PCV fail at right around 20k. Has been replaced twice.

[@wayneclement7201]

Hey Charles, changed my PCV on my 2.0 TSI Scirocco tonight. I'd let the engine cool for a couple hours, I noticed the alloy rocker cover was still hot, the bolts weren't too difficult to undo, but noticed some fine metal slithers on some of the bolts, some of which didnt seem to nip up so well on re-assembly. I think I've stripped some of the threads, easy to repair?

[@mauriciojuarezdehoyos4300]

Hey Charles, Hope your doing well, what about PCV fail symptoms on the 3.6 VR6 ?, i see oil gunk on the edge of the cylinder head cover and a very subtle idle change on my 2013 Passat. Thanks in advance, take care

[@joker2712005]

Would you recommend a pcv block off plate to avoid all these wear and tear problems. I have an Audi a4 2008 and I have a block off plate but know I have some oil in the turbo pipe near the bottom of engine

[@BasicBeachCommunity1]

you're a great teacher,thanks

[@Brad-k]

Thanks @HumbleMechaic but seriously VW make some weird parts lol.. I myself love how simple my system works.. valve cover, screw in PCV routed to catch can. On the other side of the can I have an Elite Engineering one way check valve (the good one) to keep any turbo pressure from bleeding back through the can and PCV.. It's just added insurance as I don't need the turbo popping the PCV apart and spilling it's guts into the valve train.

[@josejuano1]

Hi Humble I have a bad PCV Valve on my MK6. What is your recommendation replacement the Valve or put a catch can kit and eliminate the OEM PCV Valve..??? Thank you.

[@Mike-gz4xz]

Many thanks Humble mechanic ,i just subscribed . Any one know what would happen if you delete diagram ie (strip out) ect , vent to atmosphere , and cap off intake of pipe on turbo elbow ? But i think that would be an MOT fail here in the UK .

[@PrithwiRay]

Love your show.. I'm having a weird oveboost between 3-4k followed by misfires on a TSI + K04. Upper RPM range the car is perfect. I've checked all the hoses and no boostleak. Could the PCV be causing this.

[@3abo0od96]

Did you ever figure this out?

[@PrithwiRay]

@@3abo0od96 yup. Map. Switched to the 3Bar beta file from apr and set

[@johnslateril]

Thank you. With this video and the Deutsche replacement tutorial, I just successfully fixed my misfiring and vacuum leaking Audi A4.

[@AnthonyNatoli]

Hey man, Thanks for the info. I have an 07 Audi A4 2.0 T and I'm getting some what looks to be black smoke, as well as some hesitation. My check engine light is on and I can't pass inspection without it off obviously. The car has 68k miles on it and I don't beat on it. I think because of the codes it was throwing back on the OBDII that my PCV valve might need replacement. My question is 1.) do you think that could be the case? 2.) Do you recommend any replacement videos for a DIY job on that engine? I'm fairly handy and have done a lot of work on my cars in the past but this is just something I can't afford to take to a dealership right now. Thanks dude. Anthony

[@libertyforoneandall]

Just did my timing chain in the tsi ( thanks fro the great vid @HumbleMechanic) ...0.04deg from 4.20! But I instantly got a idle lean bank 1 msg....Wondering I I screwed the PCB valve somehow.......

[@AlexLopez-rx8lw]

My 2015 Jetta started to go thru oil. Took it to my vw mechanic told me it was this unit that got "pissed" and crapped out. Had to replace the whole unit. Doesn't burn oil anymore. Love my car. Just very touchy.

[@michaelmendoza003]

thank you humble mechanic very much appreciated video. I actually want to transplant a vr6 engine in it do you have any tips?

[@HumbleMechanic]

+Michael Mendoza best tip is, get a donor car. It will cost you less in the long run.

[@shanemitchell735]

I wish he would do a video on TSI/FSI GTI oil consumption issues. Its one of the most common issues with VW/Audi. Does everything but....

[@HumbleMechanic]

Shane Mitchell Thanks for the suggestion. That is really more of an Audi issue than a VW issue. We have seen about 3 FSI engines and 0 TSI engines with oil consumption that falls outside of what VW says is normal. That is small fish compared to the number of PCV valves, and water pumps we see

[@HumbleMechanic]

Shane Mitchell A buddy of mine works for Audi, and he is doing about 1 set of rings every other week. I can offer my thoughts on the situation and what I "think" is happening. But that would not really be a fact based video. If you want my opinion on it, I can chat about it on a Viewer Q&A show. Is that something you would be interested in?

[@shanemitchell735]

HumbleMechanic Thanks Charlie. Very interesting videos none the less. Main rear seal scares me a little. I bought a 2012 GTI MK6 DSG new and has some oil consumption which seems to be erratic. The car has travelled 23000Klms. Sometimes it uses none then all of a sudden its uses a lot. It always used oil from day 1. I have done some research and believe that many people are experiencing similar issues especially Audi, which uses the same TSI turbo engine. By the look of it the rings seem to be a problem and running in is crucial. Great little car to drive but I'm worried about long term reliability. I hope my worry is just an irrational fear.

[@HumbleMechanic]

Shane Mitchell There are a few issues with that powertrain. I am not sure why Audi is seeing such a high failure rate, and VW is not. For an intermittent oil consumption issue, I would REALLY be looking at the PCV or the diverter valve. Those seem to be the common intermittent issue parts.

[@shanemitchell735]

HumbleMechanic Thanks Charlie for the info. I will look into it. Keep up with the highly informative videos. I like to learn about the things I own and potential issues, the VW/Audi dealers here in Australia are crooks and do the least amount of work under warranty they can unless they are charging you.

[@xaviervelasquez6882]

I was thinking of getting a PCV delete for my gti mk5. I’m not too knowledgeable with them, what are the benefits for them and how are they different from oem? Are catch cans beneficial?

[@laurenciogalutan91]

Hi charles, can you make a video about the pcv revisi0ns. Does it need a ecm flash if you are changing from black top to white top pcv.

[@abelogmtz9717]

Tanks bro this is very good video tanks alot..!!!

[@RyanMiller-mu9mu]

Very informative video, quite precise. Thank you. Made me more confident to purchase and replace my own.

[@HumbleMechanic]

+Ryan Miller thanks!!!

[@aw614]

Just wondering if there has been any later revisions to the OEM PCV for the MK6 (I know the mk7 GTI seems to have an updated one...). I replaced mine back in 2016/2017, but do experience extreme smoking in autocross if I have to brake hard then turn hard left then accelerate out of a corner. So based on what I've read I probably need to add a catchcan in line too (want to keep it class legal...)

[@FoxiferTheWhite]

Another solid simple knowledge vid In the books Charles 💯 now in your *humble"opinion😅 what would be the difference in pulling that plate blocking off the back vent and running a catch can in front running off the front versus those new Africa aftermarket plates and the function difference? Or would there be ? 🤔

[@Veikra]

I've got a S8 v10. Can't find the pcv tube at resonable prices. Ive not seen cool kits like the more mundane engines. Is there any similar looking tube I could buy in a roll and use to make some ?

[@tannerbrinck27]

I have a ‘13 GTI, I put on a Forge DV relocation kit awhile ago. I recently just got my car back from the dealership, long story short, can an aftermarket piece like this trip a check engine light?

[@MeanMachine85]

I have had a reccuring p0171 on my passat b6 2.0 TFSI. Changed the PCV and break booster hose. Also changed sparkplugs and ignition coils, not because of this problem but because it was planned. Still having problems with p0171, now worse than ever before. The engine is reving up by itself when in idle.. Any good ideas would be appreciated!

[@ANDRESRODRIGUEZ-pb6cr]

would you recommend a catch can to help with this?

[@jeffreyfabre4940]

I actually have a engine code for p0068-map/maf throttle position correlation and I change the map and maf sensor but still have it so I’m guessing the PCV valve is causing it as well because the OBD scanner says it could be a vacuum leak from the intake manifold

[@jerryreff67]

Any hints about the front PVC on the VW B6 2.0 TSI?

[@JamOwnzU]

Hey Charles, if you read this... Been watching your videos for a while now, I recently got a job at an Audi dealership here in the UK and it's my first real 'tech' job in the industry. I wanted to say your videos are a great help and also to ask a question about these PCVs. You say they are frequently the culprit of an oil leak (rear main seal), I was hoping you'd explain how the fault with the PCV then causes or worsens these oil leaks? In my experience with these PCVs so far, the oil filler cap is sucked tight to the valve cover because of the excess vacuum. Is it the strong vacuum that pulls seals away from their seating or something else? Thanks in advance.

[@noxious89123]

They're designed like a one way valve, so they should allow gases/pressure/oil vapour OUT of the crankcase to be drawn back through into the intake, but when you're on boost it needs to prevent boost pressure flowing back into the crankcase. If the valve is faulty it won't do this, and so on boost the turbo will pressurise the crankcase. This can push oil out of the engine basically anywhere that it can possibly escape! I guess on that specific engine the most common place it pushes out oil is the rear main seal. With enough pressure, it could perhaps even push the seal out of place?

[@GodOfMedia]

Is there a downside (other than not being an OEM part) to replacing the PCV with a catch can kit?

[@avantsautomotive6022]

We have a 2014 A- 4 with a 2.0 CAED and it is blowing smoke bad we have done the PCV with a factory unit and replaced the turbo and it got better for a few weeks and now it is doing the same thing I am thinking the oil rings maybe bad. Your input would be very helpful TK U

[@HustleHarder_]

I have a bad pcv valve is it good to had the oil catch can or I have to replace it too as well

[@willjohnson6835]

Need some advice I have a 2011 CC and I'm pulling misfires and codes P12A2 and P2187 do you think this could be related to pcv valve . Car idles rough in morning upon cold start .

[@alexisorlando4547]

Great video!

[@H-jb4tf]

Very helpful. Thank you

[@carlosvera6885]

Hi, nice video, I have a 2013 tiguan 2.0, I removed the PCV and found a litle oil in front of valve and a lot of oil in the rear part of the PCV valve, but not have any issue, the engine runs good, i think that is not normal, there must be some oil in there or nothing?, thanks

[@pugi050]

Hi there. I have a b8 a4 turbo tfsi engine. I bought it almost a month ago. I had it for the first week and it used 2 ltrs of oil in 360 k's or 220 miles so pretty bad. Just been in touch with the dealership today who has been really helpful told me they have done the pcv and main seal and software update. How successful is this stage one fix? I'm not to confident with the amount of oil it was using. Is this likely to fix it? Thanks.

[@naticusminimus5967]

Would a failing pcv cause smoke coming from the exhaust? Especially on start up. I just trying to diagnose my Jetta Gli right now. Old turbo blew up so I replaced jt with a is38. Trying to figure out if it’s the pcv or just a lot of oil that leaked into my charge pipes and intercooler when the turbo broke.