Tsi cold misfires explained

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  • Опубликовано: 22 дек 2024

Комментарии • 1,2 тыс.

  • @Diagnosedan
    @Diagnosedan  4 года назад +156

    Unfortunately it looks we lost a part of the Audio. nothing wrong with your speakers😉

    • @MTMMotorServices
      @MTMMotorServices 4 года назад

      What editor do you use? Or is it a RUclips issue?

    • @MattyFielding6
      @MattyFielding6 4 года назад +5

      There is now that i went full volume and the audio came back 😂

    • @realdamageboy
      @realdamageboy 4 года назад +4

      @@MattyFielding6 "unfortunately"

    • @ahmadhassounmusic6053
      @ahmadhassounmusic6053 4 года назад

      Let me guess Dan
      You've uploaded the video twice because of copy right Warning of the music that playd in your shop , and that's why you cut the audio 😁 ?

    • @DB-dx8xu
      @DB-dx8xu 4 года назад +1

      Also a issue for the Ford Focus mk3 ST (250) ecoboost, I fitted a mishimoto oil separator catch can, not a cure of it, but to help prevent less carbon build up, til a valve health check and clean

  • @dazaspc
    @dazaspc 4 года назад +189

    Good heavens DiagnoseDan you sealed up that engine bay better than the surgeons did when I had my appendix out.

    • @partsshooter
      @partsshooter 4 года назад +2

      I'm like... A little overkill ain't it?

    • @Diagnosedan
      @Diagnosedan  4 года назад +21

      Dr.Dan😂😂

    • @stevekelly5485
      @stevekelly5485 4 года назад +12

      @@Diagnosedan I thought you were going to deliver a baby TSI.

    • @partsshooter
      @partsshooter 4 года назад +2

      @Sam S "I don't think it's overkill" and then "I probably wouldn't wrapped it up as tight" and then "to each their own"... Hey Sam S, if you look under %100 of people cars on the road, there debris everywhere. That wrapping had to have been done to appease the internet perfectionist

    • @hw5950
      @hw5950 4 года назад +5

      Where were the Nurses????????

  • @ferencszabo3504
    @ferencszabo3504 4 года назад +31

    I love the fact that he's not covering up it when something is not going according to the plan!A honest man!

  • @stephenarling1667
    @stephenarling1667 4 года назад +7

    Outstanding teaching skill and mechanical knowledge here, Dan. Yours is a level of competency all teachers should aspire to.

  • @robd9863
    @robd9863 Год назад +1

    Wow, what a superb video! I have exactly this problem on a VW 1.4TSI engine - misfires terribly when cold but goes after a few minutes. I thought it was just my car. This video nailed it and I will at least give some proprietary chemicals a go before looking into something more drastic (likely sell the car). Thanks for your efforts making the video.

  • @bryanderksen4448
    @bryanderksen4448 4 года назад +12

    Thanks for the quality of your videos and the thorough explanations. I teach high school automotive courses, and your videos are becoming a vital resource. It's also a bonus that you keep your dialogue "family friendly"! Subscribed!

    • @Diagnosedan
      @Diagnosedan  4 года назад +2

      That's great to hear Bryan

  • @MikeyMuse52
    @MikeyMuse52 3 года назад +2

    Such a helpful channel! 2013 Tiguan and my engine started misfiring in the cold weather, while in park and stationary was the worst of it. This is so helpful when it comes to communication with my mechanic. 💯

    • @markb3756
      @markb3756 2 года назад

      Did you get the blasting procedure done on your Tiguan? I have a 2013 Eos with the 2.0 TSI. At around 65,000 miles it was running a little rougher than normal and the gas mileage was lower as well. Went and had the walnut blasting done and it is like driving a different car! Runs so smoothly that it cant even be felt through the steering wheel and improved mileage. It's somewhat expensive but only has to be done every 65-75,000 miles. Hope your Tiggy is going strong!

    • @MikeyMuse52
      @MikeyMuse52 2 года назад

      @@markb3756 getting it done soon, I have to get my Tiguan towed 220+ miles to Salt Lake for the nearest VW person to do it. Worst part about moving to the countryside. Nobody wants to touch a VW.

  • @ramirezalbert8
    @ramirezalbert8 4 года назад +12

    Hey Dan, Great video as always. FYI, we used GM Top Engine Clean in our Lexus engines to remove this carbon buildup in the IS250 V6 engines. The trick was to get the engine very hot then remove the intake while it was still hot, then pour the bottles' measured amount into each port except the one that had the valves open. We used a small scrubber made of a handful of ZIP ties (zip tied together) then gently scrubbed the intake valves for about two and a half minuets. After, we sucked the fluid out then sprayed carburetor spray to finish the cleaning process then finally sprayed WD40 to help neutralize the chemicals used. The last step was to turn the crank and clean out the last cylinder using the same procedure. The total time to complete the service was about two to two and a half hours. I think the pellet and vacuum system you demonstrated might be the best way to clean these valves because there are no harsh chemicals and the engine can be cold. One last thing, we noticed that the V6 engines with a manual transmission never developed carbon buildup. Perhaps the higher RPM's prevented any carbon misfire issues?
    Thanks again for a great video!

    • @Diagnosedan
      @Diagnosedan  4 года назад +2

      Interesting, i can't explain why the manual didn't have carbon build up.

    • @sanelb1147
      @sanelb1147 4 месяца назад

      From what I see, it doesn't even matter if u clean it as with the first drive it will build back carbon.

  • @nyronm941
    @nyronm941 4 года назад +2

    Wow the reveal of the soda blasted valves was amazing. Good work , I love it.

  • @tedjohnson64
    @tedjohnson64 4 года назад +2

    Phenomenal tutorial! First time I’ve seen blasting media that can be dissolved; pretty clever. Also the first time I’ve seen a cleaned valve get dirty again so quickly after being cleaned.

  • @98audiquattro
    @98audiquattro 2 года назад +6

    Wow that Revive turbo cleaner worked quite well. This is the only video I've found where someone shows with an actual borescope the before and after results. I think using this or any other water-based non caustic, non flammable, and non corrosive degreaser and using it as a regular preventative maintenance would definitely see positive results. The thing is most people wait until the problem gets bad to try these products out. I can definitely see in the video that a lot of the accumulated gunk was removed with just 1 treatment.

  • @chrismechanic2000
    @chrismechanic2000 4 года назад +4

    the tsi engine also suffers from soft valve guides, i had a seat leon 1.6 with low rpm missfires, the valves float and loose compression.
    another great vid dan, the carbon build up was strong in this engine.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Yes it was pretty nasty😀

    • @lgtweewielers
      @lgtweewielers 4 года назад +1

      Valve guide gets pulled down by the carbon on the stem...

    • @chrismechanic2000
      @chrismechanic2000 4 года назад +1

      @@lgtweewielers interesting but i have never seen that happen, the guides would have to be undersized fitting in the head for that to happen i would think.

  • @jasonevans6720
    @jasonevans6720 4 года назад +13

    In my 43 years in the motor trade I can say most of the claims on all products that flush, clean or stop leaks or give better gas mileage are very exsagerated most of them cause additional symptoms or problems later on

    • @ferrumignis
      @ferrumignis 4 года назад

      There is no solvent that dissolves carbon in the few seconds these snake oils claim.

    • @vicchavez6570
      @vicchavez6570 3 года назад +1

      Yes, specially that seafoam crap.

  • @nickk1658
    @nickk1658 4 года назад +2

    Another epic, guru-level educational video from the Daddy of Diagnoses!

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      Thanks for watching Nick😀

  • @kalimsafdar657
    @kalimsafdar657 4 года назад +8

    Great video as always but I turned my volume all the way up thinking that something is wrong and nearly crapped myself after Dan started talking after all the silence near the end 🤣

  • @tecnaman9097
    @tecnaman9097 4 года назад +2

    Toyota have been using direct and port injection since the mid 2000's to overcome this problem (Lexus V6 comes to mind). A combination of direct and port is the way to go in my opinion. This is a huge problem with VAG and BM's, stating the bleeding obvious. Great explantion Dan.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      The newer engines have an extra injector 👍

    • @pantelis241
      @pantelis241 Год назад

      VW builds also the 2.0l engine with the aka Dual Einspritzung System.

  • @hammerhead6537
    @hammerhead6537 4 года назад +5

    Reminded me of a visit to the Dentist. Thank you Dan for another excellent video.

  • @sciCHD
    @sciCHD 2 года назад

    Dan you are the best teacher I've seen on diagnostic, this video was very help full as many of us still believe that these engines runs perfectly, it's shows clearly the need of a regular cleaning. Thanks again cheers Charles

  • @najieid8407
    @najieid8407 4 года назад +10

    Hi From Canada, thanks for this informative video regarding direct injection carbon buildup. We appreciate if you could give us more details about the blaster system that you have used and the media (chemical solutions). Best Regards

  • @taaaizA
    @taaaizA 3 месяца назад

    Deze man legt de oorzaak de beste oplossing en preventie mogelijkheid uit in 20 min🙏🏻🙏🏻

    • @taaaizA
      @taaaizA 3 месяца назад

      Where can i find your shop Dokter Dan?

  • @lordjaashin
    @lordjaashin 4 года назад +3

    hurray, new video from diagnose dan! please make more videos, dan. we love watching you solve and explain car problems

  • @prikolasvaikstantis8613
    @prikolasvaikstantis8613 4 года назад

    I like that you not only explained why there is misfire, but also honestly showed what chemical can and can't do..

  • @razobaghd1696
    @razobaghd1696 4 года назад +5

    Great video Dan. As always very informative.
    Watching it was a BLAST.

  • @cpcoark
    @cpcoark 4 года назад

    My hat off to you Dan. You put in a lot of extra work just to test a product.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Yes but it was my pleasure 😀👍

  • @JoelAutomotiveInaction
    @JoelAutomotiveInaction 4 года назад +17

    First 😉 thank you , for the good quality material teacher .

  • @alainvermeulen6459
    @alainvermeulen6459 4 года назад

    i have a BMW N43 engine from E90 2008 with 180000 km , cold start misfiring for 3 min . i check that out . great video again !!!

  • @madds6678
    @madds6678 4 года назад +7

    Blimey looked like you was carrying out liposuction on that engine😂😂😂
    That’s the first case of open engine surgery I’ve seen carried out live on you tube 😉
    We use tunap at my dealership it’s the recommended solution MB approve, I do like it although it is labour intensive as you stated.
    My personal take on carbon build up on valves is to change the oil at more regular intervals to prevent old dirty sticky oil mist from pcv contaminating the valve stems. I flush & change the oil on my direct injection mercedes engine every 6 months ( being in London & encountering long times at idle in traffic) & haven’t suffered any large carbon build up although there will always be some residue due to fuel no longer being sprayed onto the back of the valves & cleaning them.
    As always a good video sound quality asides, keep em coming 👍😀😀😀

  • @gabinotrujillo8405
    @gabinotrujillo8405 3 года назад

    my greatest admiration, for your knowledge and experience, and the simple way to diagnose automotive problems. thanks and blessings...

  • @panzerveps
    @panzerveps 4 года назад +64

    You forgot to mention that it's important to have each piston at TDC when you blast them, to avoid filling the cylinders with blasting media ;)

    • @MTMMotorServices
      @MTMMotorServices 4 года назад +23

      Hopefully if people are competent enough to take on a job like this as a DIY job, they should have the common sense that the valves need to be closed.

    • @panzerveps
      @panzerveps 4 года назад +29

      @@MTMMotorServices I've seen worse mistakes done by professional mechanics, so I wouldn't be so sure...

    • @MTMMotorServices
      @MTMMotorServices 4 года назад +1

      panzerveps fair enough.

    • @HandyC
      @HandyC 4 года назад +13

      Boss... we're going to need another box of neutralizer cans :D

    • @Diagnosedan
      @Diagnosedan  4 года назад +21

      There is alot to tell but this video was focussed on explaining the misfires

  • @Divided-Kingdom
    @Divided-Kingdom 4 года назад

    Kind of goes without saying but for those DIYers out there, make sure the ports/valves being blasted are COMPLETELY CLOSED. Another great video dan. I seem to get a lot of problem with injectors leaking overnight, wetting the spark plugs, also on BMW's

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Yes that's a known problem on some brands

  • @SuperMarioDiagnostics
    @SuperMarioDiagnostics 4 года назад +4

    Ah it's finally out. I remember when we spoke about this lol who knew it would take so long to get a carbon buildup situation to film. I'm still waiting for mine 😆😆 great video Dan

    • @Diagnosedan
      @Diagnosedan  4 года назад +3

      I was thinking about you doing this video, it was long in the making😂

    • @SuperMarioDiagnostics
      @SuperMarioDiagnostics 4 года назад

      DiagnoseDan i can imagine! Nicely done!

    • @MrTheHillfolk
      @MrTheHillfolk 4 года назад +1

      At least it's not a Ford Ecoboost.
      They recommend no chemical cleaning or manual scraping because it can cause damage.
      Replace parts ....like heads , intakes , turbos ....haha what a joke so at least a vw is better in that respect.

  • @alan-leung
    @alan-leung 4 года назад

    Thank you very much for the comparison between blast clean vs chemical injected at air intake, this is the only video I have seen so clearly about the comparison. Excellent explanation of the stratified mode, cold misfire and carbon buildup.

  • @robc5955
    @robc5955 4 года назад +40

    Ah emission controls, got to wonder if over the whole life of a car they actually save anything - at some point it all still comes out the exhaust, or results in co2 dump cause the car gets scrapped early. Grumble.

    • @mr.airgun6921
      @mr.airgun6921 4 года назад +5

      Indeed. Let’s catch everything in a filter then people will blow it all out in one go or wash it down the drain.

    • @Diagnosedan
      @Diagnosedan  4 года назад +3

      Thanks for watching 😀

    • @Luxtraveler247
      @Luxtraveler247 4 года назад +2

      Mate no one cares about emissions

    • @MrTheHillfolk
      @MrTheHillfolk 4 года назад +2

      Haha watch the vid about the problem retrofitting cats and dpfs on school buses in California has caused.
      Haha to clean em out they back em up to the property line and let em go into Regen mode , blowing ash and all kinds of crap all over.
      There was a whole bunch of vids a few years back on how carb is basically putting people out of business and costing everyone alot of money and we aren't seeing any benefits

    • @Cheepchipsable
      @Cheepchipsable 4 года назад +1

      Go to China ro France to see emission problems, or back to LA in the 80s where they would issue smog warnings.

  • @supersood2
    @supersood2 Год назад

    A great demonstration and explanation of a common issue. Keep up the good work. 👍

  • @drivewasher
    @drivewasher 4 года назад +5

    Diagnose Dan, Your'e AWESOME!

  • @MM-oq5bl
    @MM-oq5bl 4 года назад

    Another Top Class video from Dan, especially the clear explanation of the modes of fuel injection of a direct Injection engine

  • @ozzstars_cars
    @ozzstars_cars 4 года назад +4

    I stuck my blaster into the hole and it caused major damage. 🤣🤣 Great vid, Diagnose Dan does it again!

    • @Diagnosedan
      @Diagnosedan  4 года назад +4

      Everything is bigger in the States huh😉

    • @dennisphoenix1
      @dennisphoenix1 4 года назад +2

      Yeah the wrong hole , that was your mistake

  • @mickandrews9458
    @mickandrews9458 Год назад

    Well impressive. Pretty unusual to find a mechanic who understands the technical side of engine operation and design to the extent you have explained in this video! Great stuff. Need to have a look to see if you have a video about Tsi engines that 'hiccup' when transitioning from low load to high load at mid rpm (e.g. going onto a steep incline, or heavish acceleration).

  • @Prakicov
    @Prakicov 4 года назад +84

    TSI stands for Troubles, Serious Indeed

    • @glenohara6563
      @glenohara6563 4 года назад +27

      Terrible Shit inside. TFSI Terrible f@#ken shit inside. Timing chains especially.

    • @neilmurphy845
      @neilmurphy845 4 года назад +1

      Haha good one what would tdi stand for then

    • @Duvelz
      @Duvelz 4 года назад +5

      @@neilmurphy845 The Diesel Icon! obviously :)

    • @neilmurphy845
      @neilmurphy845 4 года назад +6

      @@Duvelz ya I heard the ones whitout that dpf crap were amazing engines could go 500 thousand no bother

    • @Diagnosedan
      @Diagnosedan  4 года назад +2

      😂😂

  • @GNX157
    @GNX157 4 года назад

    It was great to see you have respect and use the fender and nose covers on the car. I’ve mentioned this to other YT mechanics but they continue to go without them. When I was a mechanic it was mandatory to do this as well as cover the seat and floor and also no belt buckle.

  • @anthonysands8846
    @anthonysands8846 4 года назад +3

    Just started to watch your videos ! Keep up the hard work really enjoy watching them 👍

  • @CubasAutomotive
    @CubasAutomotive 4 года назад +1

    Wow! The carbon cleaning strongly resembles a surgical procedure! Very interesting. I learned a great deal from this video Dan! Stratified & homogenous, etc... very intricate detail! Above & beyond as usual! I can imagine how much time this video took to make. I applaud you Dan!

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      Thanks Cuba😀

    • @josearmas6938
      @josearmas6938 4 года назад

      Cuba's en verdad Dan hace uno de los mejores contenidos en RUclips, tambien puedes encontrar todos esos detalle en la plataforma ELECTUDE, es muy buena plataforma en la formación en linea para los mecánico

  • @moestrei
    @moestrei 4 года назад +3

    I'm following car and motorcycle engines since air cooled, push rods, carbies and points. OHC....ok, fuel injected....ok, electronic ignition....ok but then the bullshit started with emission control and trying to squeeze out more efficiency out of engines which have 20-30 % efficiency only to start with. Super expensive to repair and costing the owner much more than paying a bit more for fuel during the lifetime of the vehicle. So I kept using Newtimer cars and one fine day soon i will jump to electrics. I get to drive a Tesla for long distance trips occasionally and i know they have their own set of problems. But they are very convincing and definitely the future (I mean electrics in general). Dan, you're an absolute legend and every new video from you makes be feel like a kid at Christmas.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Wow thanks for the nice comment 😀

    • @michelvanosch5465
      @michelvanosch5465 4 года назад

      I think the real problem here is the quality control off the car manufacturer. Why is it that VW didn't discover all the problems with the TSI engine during the testing fase and why is it that they get away with the customers paying the bill for there poor design and quality. But people keep on buying these cars and keep on paying for poor design and quality.

  • @Poanoofd
    @Poanoofd 4 года назад +4

    this is just the best timing! i have a gti with these problems in too!

    • @slabbyrider8665
      @slabbyrider8665 4 года назад +1

      Me too. Although the miss fire has got better after thrashing the thing lol. Bit like a 2 stroke bike, ride like a poof it gets serious carbon build up and slows down, wring it's neck and retain a healthy engine.

    • @iuliancalin22
      @iuliancalin22 4 года назад

      sell that shit as soon as possible

    • @Diagnosedan
      @Diagnosedan  4 года назад +3

      You know what to look for😉

  • @JohnSmith-ok9sn
    @JohnSmith-ok9sn 11 месяцев назад

    Thank You for yet another excellent video, Dan.
    When I was watching the part where you had used the chemical, and said , that it did not work as you had expected, I thought, that perhaps you could just use a couple more bottles of it - say, 3 bottles in total.
    From the video it looked like it did remove, at least, a half of the original amount of the build-up. So, the natural question comes, "Why didn't you just keep at it"?
    Just a thought...
    ...
    I use the CRC GDI Intake Valve Cleaner, here, in the U.S. and, to be honest, it works great for me. I do feel a better response from the engine after a cleaning, and do it periodically, once a year, or so.

  • @MileDioda
    @MileDioda 4 года назад +5

    Great educational video as usual :) What does the cat think about these chemicals and the oily gunk that will probably partly unburned end up in the exhaust? I haven't tried any of these chemicals because of "fear" of cat failure later on.

    • @andrewsmythe6124
      @andrewsmythe6124 4 года назад +2

      When using the BG direct injection cleaner you have to snap the throttle to 3k every 60 seconds to prevent cat failure

    • @Diagnosedan
      @Diagnosedan  4 года назад +2

      I think its supposed to burn but it proberbly doesn't burn all. Good question.

    • @ramirezalbert8
      @ramirezalbert8 4 года назад

      We use the BG air intake cleaner in our shop. What works best for us is to pressurize the solution can to no more than 20 psi and run the engine at 1500 rpms. It takes about 20 minutes for the can to empty and when test driving after the service, there is very little smoke/chemical from the tailpipe, meaning there is very little to no pooling of the solution. I have no idea as to the life of the cat however, because no data gets compiled on that from our invoices.

  • @mariohernandez-qq9ed
    @mariohernandez-qq9ed 4 года назад

    Clear and concise! Solid explanation of the theory behind carbon build-up and it's effect on engine performance.

  • @chylimzbydzi
    @chylimzbydzi 4 года назад +7

    Doesn't the carbon buildup have something to do with EGR valves?

    • @armandonika
      @armandonika 4 года назад +2

      Michał Chyliński that and also oil vapors!!

    • @tomvleeuwen
      @tomvleeuwen 4 года назад +2

      Probably, but also on cars without EGR valve this is a big issue.

    • @chylimzbydzi
      @chylimzbydzi 4 года назад

      @@tomvleeuwen Thanks, I wasn't aware of that🤟

    • @armandonika
      @armandonika 4 года назад

      Tom without egr takes more time to build up however the main factor are the oily residues!!

    • @Discretesignals
      @Discretesignals 4 года назад +1

      Intake valve is colder, so carbon loves to stick to that. Valve guide seals don't totally eliminate the oil running down the valve stem and onto the back of the valve. The oil cooks and sticks.

  • @nadeemahmed640
    @nadeemahmed640 4 года назад +2

    I miss you sir....why very late?I am always waiting you.One of the best explain teacher.appreciate your efforts.

  • @Dasdembo
    @Dasdembo 4 года назад +5

    I didn't heard you mentioning EGR valve.
    When engine runs on lean-mode it produces lots of carbon!
    At same time engine runs on almost closed throttle, which gives a lots of pumping losses.
    That's why EGR valve opens and helping to decrease pumping losses. And that's why all carbon goes back to intake valves.
    And if you mix all of carbon with oily steam from crank hause ventilation you get all that you saw on boroscope!!

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      There are more than one source of contaminstion. You are right 👍

  • @christopherdevlin4602
    @christopherdevlin4602 4 года назад +2

    Im technician and learning loads from your content this was a great video for me as i own a 1.4 tfsi golf after watching this i am now regularly using a intake treatment to prevent the build up of carbon it has only done 21k miles so hopefully can prevent this inevitable fualt thanks dan your a top guy

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Thanks for watching my video's Christopher 👍

    • @BenState
      @BenState 2 года назад

      It will slow it down at best.

  • @jasonmcnamara2079
    @jasonmcnamara2079 4 года назад +41

    Sometimes it seems the smarter we try to be with getting engines fuel efficient, the dumber we look.

    • @Roudter
      @Roudter 4 года назад +3

      Right!?....this direct injection thing on gas engines....turbos to make V6 stronger than V8
      Please, give me the old-style injectors with pushrods....(i.e. Ford's new 7.3L gas)

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      Thanks for watching 😀

    • @brianeno1062
      @brianeno1062 4 года назад

      With refinement comes complications

    • @MV60
      @MV60 4 года назад

      I think Toyota is putting in pre-valve injectors again just for cleaning while keeping Di.

    •  4 года назад +1

      No more crappy eco cars that have no power but good fuel economy. Cars need everything in one package now

  • @meds2909
    @meds2909 4 года назад +1

    Hi Dan, your english is very easy to understand 👍👍....thank you
    From Morocco

  • @WorivpuqloDMogh
    @WorivpuqloDMogh 4 года назад +3

    Why doesnt VAG switch back to EFI.... god...
    The 1.8 20v turbo was an amazing and long lasting engine. No gunked up valves as well

    • @mistersniffer6838
      @mistersniffer6838 3 года назад

      How are they gonna make money off you by cleaning up a problem they cause???

  • @sportshatch
    @sportshatch 4 года назад +1

    Fantastic video Dan. As always a clear explanation of the cause of the problem, and the proper fix with evidence.
    You also saved people time and money by not using the snake oil.
    Looks like the additive might work if used regularly before the problem occurs, but will not help in an advanced case.
    More preventative maintenance .
    Thanks again, nobody does clearer more concise videos than you. Not even Eric O.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      That's a great comment Sir😀

  • @VoltageDropDiagnostics
    @VoltageDropDiagnostics 4 года назад +3

    Great video Dan!

  • @mohammadal-gebaly3046
    @mohammadal-gebaly3046 3 года назад

    As usual you are professional and honest man , great Dan

  • @999thenewman
    @999thenewman 4 года назад +8

    A spray bottle of hot water into the intake with some raised rpms would've worked better than the cleaning product.

    • @joemilton7552
      @joemilton7552 4 года назад

      seems doubtful since the water wouldn't be hot when it passes over the valve.

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      Maybe!

  • @LAW-fv6ys
    @LAW-fv6ys 3 года назад +1

    Another fsi misfire cause is spark plug gap or incorrect plug. Fsi is sensitive to spark in various situations. This was cold misfire specifically though so mostly this is Carbon build up or runner flap fault. Also worn cam lobes can cause random misfires which are hard to trace. Im buying the autel mk808bt this year and I love the camera scope will get one of those aswell. Smashing video Dan as always.

  • @dustin9035
    @dustin9035 4 года назад +4

    Engineer's sitting back laughing.

  • @billrimmer5596
    @billrimmer5596 4 года назад

    Once again, best channel on RUclips for the latest information about modern car repair. I thought the carbon was holding the valves open a little when cold. WRONG. Do u c the black rear bumpers on direct injection cars? I hate that. Port injection is best. Or a combination of both. This video, along with the ones on high voltage battery systems and many other subjects make this a standout channel!!! Thank u DD. U fixed it again.

  • @calm4477
    @calm4477 4 года назад +3

    It’s hard to understand why VAG hasn’t installed a catch can to prevent this exact problem

    • @Benbou969
      @Benbou969 4 года назад +1

      It doesn't help.

    • @calm4477
      @calm4477 4 года назад

      Cabaliero while it may not totally eliminate the problem, I’m sure it would take much longer for the problem to appear if a catch can was fitted at the factory.

    • @Benbou969
      @Benbou969 4 года назад

      @@calm4477 They did it on some engines before, than stopped. Now they do 1.8tsi with two injectors per cylinder, one in the cylinder, and other in the manifold, that helps but very expensive and complicated.

    • @MTMMotorServices
      @MTMMotorServices 4 года назад

      They probably realised it makes. More money when the customer brings the car back to the dealer for a fault that's appears conveniently after the warranty expires ;)

    • @Benbou969
      @Benbou969 4 года назад

      This carbon buildup is all about oil evaporation and exhaust gases turned in intake line, catch can can't catch it well enough. Some experts advise using of oil with low evaporate level, and clean intake ports every 20K miles.

  • @LAW-fv6ys
    @LAW-fv6ys 3 года назад

    Dan is the man. Simples. I used Mr muscle oven cleaner on turbos and intakes. It's not something for a new car but old higher mileage engines you haven't got a lot to lose and it works well.

  • @Russell_Duncan
    @Russell_Duncan 4 года назад +1

    The quality of what you are sharing is second to none Danny. Thanks especially for taking the extra time in dismantling the intake twice for our benefit. I’ve never heard a proper explanation of the cold misfire cause before but your description makes perfect sense. Have you ever seen the port dividers on TSi engines broken in half. I’ve seen a couple now and wondered if it might be due to excessive intake air temp caused by bad remaps. Both were on cars owned by young drivers with exhaust and air filter modifications?

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      I've not seen that yet, thanks for the comment 😀

  • @JoesAutoElectric
    @JoesAutoElectric 4 года назад +1

    Most techs knew back when this system was first introduced that this would be one of the biggest issues with it. It is a stupid design and people are paying for it when the failures occur. Best method to keep this from happening is running dual injectors, which many of us figured would be incorporated into the design. It wasn't until recently on some makes and models. Great video Dan! Seems that there is little in the way of effective cleaners aside from blasting to get the carbon off.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Agreed Joe, once the carbon build up gets to a point it starts to effect the engine it looks that the only real solution is blasting. Thanks for watching 😀

  • @Benbou969
    @Benbou969 4 года назад +2

    I did this by myself two months ago on my Octavia A7 TSI, completely hands job, it was a hell.)) But now my car works well.

  • @Crash915
    @Crash915 3 года назад

    Incredibly helpful and informative! I’ve been diagnosing cold misfires on my tsi for a few months now, replacing things like the coil pack, leads, spark plugs. I even changed the pcv valve and was starting to look at getting a carbon clean done next. This video almost confirms my suspicion of it being carbon build up.

  • @peanutbutterisfu
    @peanutbutterisfu Год назад

    Good video! I’d like to add that the breather system is a part of the problem too some DI engines never get that dirty. I personally wouldn’t use chemicals on valves that bad because a chunk of carbon can come off and if gets gets on a valve seat the valve can burn up and also converter failure.

  • @connomar55
    @connomar55 Год назад

    Love the videos Dan, just following the diagnostic steps on modern cars is fascinating. In this one, the explanation of how these TDi engines work was really great. The only thing that made me think was where the carbon deposits were coming from? No fuel should be passing the inlet valves, only air, so no carbon there. Then it occurred to me that modern cars vent environmental contaminants back into the engine - via the inlet valves. Presumably, a car that gets this amount of deposits must be venting a lot of oil vapour for this to occur?

  • @koffibanan3099
    @koffibanan3099 4 года назад +2

    very thorough explanation of the problem, thanks!!!

  • @zawdaw520
    @zawdaw520 4 года назад

    thanks DAN for giving us this information about how carbon build up in direct injection engines

  • @billburkart9087
    @billburkart9087 4 года назад

    Thank you for taking time out of your day to film this. I got to say your shop is clean enough to eat off the floor. Well maybe not that clean but clean enough for high end cars. I imagine that you would have a fit if you had to work on an old American truck like Eric O.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      My first job was at my fathers junk yard, so i've seen alot😉

  • @МихаилУльман
    @МихаилУльман 4 года назад

    Добрый день. Ссылку на Ваш канал дали. Проблема двигателей с непосредственным впрыском известна-закоксовка впускных клапанов. Сначала придумали, потом столкнулись с этой проблемой и начали придумывать решение. У меня с такой проблемой были EP6. Причем есть интересная особенность. Конечно в Вашем случае появились уже пропуски воспламенения. Но динамика машины понемногу ухудшается с закоксовой. Решение по очистке очень интересное. Не все понял, плохо знаю английский, но примерно все ясно. Успехов в работе и спасибо. Подпишусь на канал.

  • @garyhinkel5483
    @garyhinkel5483 4 года назад

    Awesome explanation on carbon build up on intake valves Dan. I installed a catch can on my 2014 ford 3.5 ecoboost to help prevent this problem. As always looking forward to your next video.

  • @richardkahl9799
    @richardkahl9799 4 года назад

    Dan , Automotive test solutions 3c chemical machine uses a three part chemical system. Bernie shows lots of case studies before and after with great results. Depending on how bad the carbon on most applications there is no need for intake removal or blasting . It’s on my list of equipment for my shop. This system is one that will keep cost down for our customers and the service is something that the customer can actually feel the difference when complete. Keep videos coming love em. Thanks.

  • @c86tail
    @c86tail 4 года назад +1

    Another great video Dan! Thank you for the explanation. We deal with this issue at my shop quite a bit. Your explanation on hold and there’s fires happen really makes sense now.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Great to hear the video helper you understand the issue

  • @ne2i
    @ne2i 4 года назад

    Watching you do your thing is like learning from the master!

  • @emilpavlov147
    @emilpavlov147 4 года назад +1

    Great Video.
    Can you give more info about the "Powder"
    and "neutralizer" that you use for the blasting.

    • @SazzC5
      @SazzC5 4 года назад +1

      Look up for tunap microflex 933 kit, I believe it's the same thing

  • @nickdegroot2445
    @nickdegroot2445 Год назад +1

    Very interesting video and super detailed! My car, a Seat Leon 5F 2013 1.2 TSI with 135.000 km on it has some different symptoms. It runs smoothly when stationary, but only when giving full throttle driving at around 100 km/h in sixth gear at roughly 2000 rpm, it starts to vibrate and feels like misfires. Do you think this is also due to carbon deposits on the intake valve? Also, do you think a regular oil engine flush before changing oil helps to remove carbon deposits from the intake valves? Looking forward to your answer.

  • @shanelloyd8366
    @shanelloyd8366 4 года назад

    Just did it again....Great video Dan. I use walnut Granules but I do like that stuff you used as it can be dissolved.

  • @TheSSHR
    @TheSSHR 4 года назад +1

    How is spraying in intake filter box fall into "after MAF"?Am not expert but what i know about engines gas and diesels, MAF sensor is after intake filter and if you spray anything in intake filter box beside MAF cleaning solution, MAF will go bad in some time.Dont gave me wrong i dont want bashing and shiting on your channel. I love this channel and learned alot watching thru yours working and explaining.

  • @gtautomotive22
    @gtautomotive22 4 года назад

    Revive could be a good preventive maintenance item but nothing beats like getting down and dirty and remove that carbon. Manually. Thank you for the great video.

  • @alecquinton6102
    @alecquinton6102 4 года назад

    I Recently found your channel and its a revelation and wanting me to diagnose the right way but so many different diagnostic tools difficult to choose

  • @PaulCTownsend
    @PaulCTownsend 2 года назад

    Cool crankcase catch can and also clean down the throat of the intake works pretty good.

  • @PeterParker-ht8xz
    @PeterParker-ht8xz 4 года назад +1

    You are an absolute LEGEND! Thank you very much learn something new again.

  • @Mikesky10
    @Mikesky10 4 года назад +1

    great video!!!!!!! one question, in the scan data there is a data PID that indicates in what mode it is the fuel mixture? So i can veryfied that when it tells me that is in the stratified mode and i can check that the misfires are happening in that moment and in the precise moment that the mixture mode change to the homogenues mode the misfire disapeare

  • @joebeitzinger360
    @joebeitzinger360 4 года назад +1

    Brings back memories of early 90s at the BMW dealership. Driveability campaign with the walnut shell blaster from Kent Industries. Good times.

  • @CL500MBZ
    @CL500MBZ 4 месяца назад +1

    Dan what is that stuff called granolith!?? I can't find it anywhere for sale. Can you do a follow up video about it?

  • @jtbtabimono
    @jtbtabimono 4 года назад +1

    Thank you for another great presentation Dan! Nothing is more certain than actually checking it visually like you did, especially those products that claim to clean internally. Also, there is no short-cuts on any job when things are real bad, I suppose.
    As for the blasting, in Japan they were using machine that blasts with dry ice pellets to do the same job. Since dry ice naturally disappears after while there is no need to neutralise or suck the residues up completely. I haven't seen this outside Japan.
    Also, on the future video, if you could mention the odo meter readings of the vehicle featured would be great. It gives some ideas as to what to expect at certain mileage though of course this varies on how the vehicle is being used and driven, it is still useful.
    Thank you and looking forward to your another great episode.

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      130K kilometers, i've never seen blasting with ice over here.

    • @jtbtabimono
      @jtbtabimono 4 года назад +1

      @@Diagnosedan Thanks Dan, I haven't seen one outside Japan being used in garages but if you're interested, this is what it looks like, though the page is in Japanese only you get the ideas from the photos. Cost might be the issue nonetheless, more and more cars are becoming direct injection, this might eventually become available in Europe.
      www.greentech-japan.co.jp/

  • @1MiketheMechanic
    @1MiketheMechanic 4 года назад +1

    Great video Dan! We get these at the shop frequently although not many with this much build up. The newest BG products work well when applied correctly. An application like this may take several cleanings though, so would be a better candidate for blasting. The local VW dealer also has been using the BG products.

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Yes this one was pretty bad😬

  • @lgtweewielers
    @lgtweewielers 4 года назад

    I had DI engines run good again with revive ! Never opend them up to look inside but I used a lot of it. Soakt it in real good, never heard the complaint again.
    Greetings, nice vid

    • @Diagnosedan
      @Diagnosedan  4 года назад

      Maybe the Carbon build up wasn't as bad as this one.

    • @lgtweewielers
      @lgtweewielers 4 года назад

      @@Diagnosedan indeed. This one is bad haha.
      Oven cleaner seems to work wonders on carbon buildup (what I heard of).
      I don't know if the intake will like it..

  • @danman9017
    @danman9017 4 года назад

    thank Dan for showing us the result .i am so glad that we have you to show us

  • @carlosmaurencig6763
    @carlosmaurencig6763 4 года назад +1

    Thanks for the lesson and the carbon removal procedure Danny!

  • @LostMountainRestoration
    @LostMountainRestoration 4 года назад +1

    You are a great teacher. Thanks for sharing your knowledge.

  • @baxrok2.
    @baxrok2. 4 года назад

    A chemical additive will never clean as well as some form of media blasting. Well demonstrated. Thanks!

  • @pantelis241
    @pantelis241 Год назад

    Furthermore except the direct injection for the carbon build up on the intake valves is EGR valve and if i am not wrong the TSI has also one. A great video as always, thsnks once moren Dan 😊🙏

  • @alankuentz4617
    @alankuentz4617 4 года назад +2

    Thanks for making this video. I've been wanting to install a catch can on my tsi, but have been worried the dealership will void my warranty if I do. I haven't seen revive here in the states but we have a different product made by CRC that many people use for the same job. Now I have an idea how well it works.

    • @Diagnosedan
      @Diagnosedan  4 года назад +2

      Thanks for watching Alan😀

    • @dennisphoenix1
      @dennisphoenix1 4 года назад +1

      A catch can will help with crankcase oil vapour but not turbo oil vapour

  • @kevincampbell8298
    @kevincampbell8298 4 года назад +1

    The other big issue we seem to forget about is the build up in the intake itself. I think maybe a longer term test of it being used on some kind of a regular basis. Would also clean all the crud from the intake itself.
    Great vid and info as always! 👍🏻👍🏻👍🏻

  • @arvindsingh-qp7rg
    @arvindsingh-qp7rg 4 года назад +2

    Thanks Dan for making another great video , I've been waiting for a long time

    • @Diagnosedan
      @Diagnosedan  4 года назад +1

      I hope it was worth the wait😀

  • @GNX157
    @GNX157 4 года назад

    A few questions? What was the accumulated mileage for this carbon? What kind of oil was used. How often was it changed? Was there a n oil breather separator system in place? Thanks for answering each question.