Tsi cold misfires explained

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In this video i explain why a tsi engine with carbon build up has cold misfires.

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

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

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

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

stephenarling
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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.

robd
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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!

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

taaaizA
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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!

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

nyronm
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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.

chrismechanic
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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.

tedjohnson
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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.

audiquattro
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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. 💯

MikeyMuse
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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

jasonevans
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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

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

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

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

cpcoark
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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 🤣

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

nickk