So to clarify: I have asked for a picture of Jeep 2.0T with carbon clogged intake and you post random engines, not 2.0T, right? So I'm still waiting for visual evidence.
Do you think there is some design difference that would cause a Jeep to not produce the exact same conditions at the intake valves? It’s a design feature of a direct injected engine. There’s no getting around it.
It's a real world problem in DI engines, but I haven't seen much of it in the Jeep 2.0t specifically. I'd say it's a potential issue, and possibly even an inevitable one, but at what mileage is that? There are many of us past 60k miles at this point and I haven't seen any post carbon fouling to the point of driveability issues? Could it happen sooner? Sure. Will it happen eventually? Probably, but with the built in oil separator on the PCV system I'm guessing that point is well beyond 100k miles.
That's why you make the conclusion that all timing belts are bad as chains never stretch or have issues with the tensioner or guide rails. Same for turbos. I remember back in the early 80's they failed like crazy, thus turbos will do that today. Best option is just an LS motor as they never have problems at all.
Good to see that they plug up too. How many miles on that Jeep when this happened?
That wasn't a Jeep 2.0. In all of my lurking on the forums nobody has actually ever posted a pic of a Jeep 2.0 that had a ton of carbon buildup.
Because nobody has had one apart. There is absolutely nothing about the design of the 2.0 that is unique or solves the problem of carbon buildup.
Until someone is the first to have one apart, it is probable, but unproven. IMHO, if people aren't experiencing a bunch of oil in their catch cans then it is unlikely it's as big of an issue for this engine than it is for other engines, for whatever reason (likely a well-designed PCV oil separator).
Thanks for saving me a post. Like the Alfa Romeo Giulia 2.0, the Jeep 2.0 also has an integrated separator.FWIW, there is an oil separator built into the valve cover of the 2.0T:
The internals of which appears to have baffling designed to allow oil vapor to condense out of the air:
I would suspect the design of this part to be responsible for why so few people get results from catch cans, and why it isn't a bigger problem for 2.0T users (that is not to say carbon buildup isn't happening, or that the MUA oil separator is perfect - but rather that the design of this part is helping slow down the accumulation of carbon in the intake and reducing the impact of the typical DI carbon buildup issues).
That right there should tell you this engine must suffer from this issue substantially less than other similar 2.0L GDI engines because if it was fouling up, people would be having to take them in to get walnut shell blasted like they do on other engines that have problems in as little as 50k miles.
