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Exactly sir, not everyone experiencing the same issue, but at least TSB was issued for whomever experiencing this.

@OBD, Appreciate your valuable response, this is what my friends are doing now with their JLs, oil catch can and can of sea foam spray top engine cleaner every once in a while. They used to have the noise and it's gone now for some and reduced to bare minimum for others, saved them from a big...

Exactly, appreciate your response

As I mentioned earlier, I have never installed an oil catch can in any of my vehicles, only in JL, Yes it will not stop anything from happening but will help reduce the amount of oil that goes through faulty PCV.

Yes, sold it exactly after 1 year and 7 months after the repair, and no issues were there at all. and again TSB came out for a reason.

I understand you sir, but believe it or not, i never ever used an oil catch can in any vehicles i owned and I own now, only for the JL when this issue happened and it worked great for me. Never used it and never happened in a JK, but unfortunately what went wrong with 3.6 pentastar upgrade, not...

Appreciate your response, but believe it or not, i never ever used an oil catch can in any vehicles i owned and I own now, only for the JL when this issue happened and it worked great for me. By the way I sold the JL.

Good luck and wish you all the best.

My dear don't think I'm arguing with you, when this first happened to me I was totally upset with a brand new vehicle doing this. After a research i found out it is not only me. In fact I'm more surprised that this was not an issue with the first gen 3.6 pentastar and never experienced this in a...

TSB 09-012-22

Apart from an oil catch can, You can check TSB 09-012-22 for more information and clarification.

Which results the above issue. Install an oil catch can and you will see it's more than . 25qt of oil

@Als@Ohio, thanks for sharing the information

@mwilk012, its all about a faulty PCV valve

@mwilk012, I live in the Sultanate of Oman, the fuel which I use is equivalent to 91 octane in USA. My JL was only dealer maintained and used Mopar 0w20. 3.6 pentastar upgrade is known for this issue, it has a faulty PCV and still no fix from Stellantis, I'm not the only one experiencing this...

Hi @L.S.F Removing the cylinder heads will allow more access to clean the already built up carbon deposits. But even after cleaning them manually and replacing the PCV valve will fix the issue for a short while only, what i have done after cleaning the carbon and replacing the PCV, I installed...

Hi everyone, started hearing this noise since yesterday, whenever i turn off the engine this clunk noise comes from underneath. The Jeep has 36000 miles and never heard this before until yesterday. 2020 JL 3.6 2 door sport S.

I heard the noise first at 7000 miles. First repair was at 14000 miles using Bluchem Carbon X by the dealer but no luck. The major repair was by removing the cylinder heads at 26700 miles. now Jeep has 28200 miles and so far so good

Hi everyone, So i was experiencing a pre detonation with my 2020 3.6, took it to the dealer first they tried to clean up the combustion chamber with a cleaner but unfortunately that didn't work. So next step they had to remove the cylinder heads to reach the pistons to clean them and replacing...