Cam failure question/poll

[LouisvEarlleJT]

Haven't seen it anywhere, so thought I'd ask the question. If you've had the cam/lifter failure, post your year and mileage here. So far I've only seen it on MY22 and older, curious if that's really the case or if it's also affecting the other years.

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[GWolgamott]

2020
154,000 or there abouts

 

[BRMoose]

2021, 76,000 miles

 

[Jrgunn5150]

They fail when they want to. Dude just posted his 24 with 7500 miles filed today.

On any year, at any time, with any type of oil or maintenance regimen followed.

The only thing I can say is, and I don't at all believe in it's usefulness, but so far, I've not seen one with the stupid Baxter filter thing fail.

But, most don't fail anyway, so sample size is absurdly small on that.

 

[1rider]

2022 56,000 and now again at 65,000

 

[Jeff2023JT]

2019 JL rubicon was making a noise when i trade it in at 43,000, 2023 JT rubicon 21,000 motor was shot with cam/lifter Jeep installed new long block under warranty i now have 6500 mile on the new motor with all my fingers crossed!!!

 

[cb4017]

I've been a Jeep guy for a long time. This is my second Gladiator and obviously I like them a lot.

That said, I'm not married to it. If this eats the cams I would likely get it fixed under warranty, trade it in and move on.

 

[Lochsa]

2024 Rubicon X
Started ticking at 500 miles, passenger intake cam and roller/rockers replaced at 8000 miles
Driver side exhaust cam replaced at 8500 miles
Passenger side rockers replaced at 8500 miles
Not sure how I feel about all the metal that has been though this engine.

 

[cb4017]

2024 Rubicon X
Started ticking at 500 miles, passenger intake cam and roller/rockers replaced at 8000 miles
Driver side exhaust cam replaced at 8500 miles
Passenger side rockers replaced at 8500 miles
Not sure how I feel about all the metal that has been though this engine.

That's some bad luck.

 

[Lochsa]

That's some bad luck

I think more like some shit parts Stellantis decided to use. Probably cheaping out on what they would pay suppliers.

 

[Jrgunn5150]

I think more like some shit parts Stellantis decided to use. Probably cheaping out on what they would pay suppliers.

That's exactly how it works!

If they pay twenty bucks, they get the good stuff, but only8? Throw some old Faygo cans in there!

 

[maximusdecimus2020]

Haven't seen it anywhere, so thought I'd ask the question. If you've had the cam/lifter failure, post your year and mileage here. So far I've only seen it on MY22 and older, curious if that's really the case or if it's also affecting the other years.

Looks like I may be facing it now. 2020 - 122K miles

 

[bmpcamry09]

If you guys look into the Variable Valve Lift system on these PUG 3.6 engines (2018 and newer) and look at its design and use, you’ll see why these could be having so many cam and lifter failures. At least, this is my take on it. Mind you I’ve probably done more research and study on this than the average Joe.

Almost every camshaft/lifter failure I have seen on these newer engines post 2018 is the center lobe (high lift) and not the two outer lobes (low lift). The two smaller outer lobes of the cam shaft are what are used 80 percent of the time the engine is running. Most of the damages on these newer engines are the big center lobe/high lift lobe.

The high lift side doesn’t use a traditional roller/rocker. It uses a pin and its engagement is a very abrupt event. Ironically, when I developed tuning on these I actually discovered that “high lift” mode isn’t even used for high power and that high lift is used more like a way to add airflow for emissions purposes at lower load. Think of the engagement points as being very similar to when Eco/MDS/V4 mode kicks in on the hemis and GM V8 engines. The people who have been saying for years high lift kicks in over 2800 RPM are straight up wrong.

I made a whole video about this debacle, and I am confident this hi lift system is partially causing premature cam wear, in addition to less than quality materials. It's activation points are odd.




This abrupt engagement can actually be felt if you feel for it closely while driving. It comes off as a misfire or stutter feeling. Usually around 1800-2200 RPM at lower load and slower acceleration. It can be felt at highway speeds too.

I’ve got a few threads on the JL forum that cover this and a few YouTube videos floating around too. The only fix at this time is having high lift VVL tuned out, which I do. But I can’t help but wonder if disabling the high lift side will help alleviate these failures.

You’ll probably never see a formal fix from Jeep in the USA for this because it will effect emissions and they won’t jump through the hoops for that.

 

[maximusdecimus2020]

Has anyone tried the "goodwill assistance" or "repair cost assistance" from Chrysler.

 

[slodsm]

2016, ran to 140k, zero issues (rolled it down the interstate).
2017 ran to 140ish as well, zero issues. Traded in.
2018 ran to 120-130, zero issues. Traded in.
2021, 40k, zero issues. Will replace when it wears out because I’m not buying a new spy on me vehicle once that happens in the next year or two.

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