Thoughts on 3.6 longevity

[Roky]

I’ve got (2) 3.6 engines, both 2018 …one in my ram work truck and one in my Jeep… the work truck has 143K on it, and the only thing I’ve done to it is change out the oil filter housing… though I’m not so sure I didn’t cause that myself by over tightening the oil filter…… The Jeep has 30K ish and runs like Swiss watch but sounds like a sewing machine…..Whether they’re good engines or not I don’t know, but so far the two I have are….

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[Deleted member 57375]

That's never going to happen in this forum. If you have thin skin and are easily offended, you will have a problem here...

Sounds like there are alot of jerks on this site

 

[yokramer]

So then you DON'T believe they aren't all affected? Your wording is confusing.

It does happen at a wide range of miles, and for that reason no one can say at this point that they aren't all affected. Much like the DoD lifters on the Hemi and SBC V8s for example - the old single mode systems would generally fail in the 130-150k range. Some would fail sooner, some would last longer...but it's generally accepted that they all WILL fail, it's just a matter of when. Our JLs are relatively young, the vast majority of us haven't hit 100k miles yet...so there's still a lot of time left before we will know the full extent of this.

That said, the problem is a design issue. The only way to fix it is to fix the design. Different weight oil isn't going to fix it, different oil change intervals isn't going to fix it. If you want to keep your JL for the long haul, get a warranty.

Swap in the 2.0 would fix it too

 

[TheRaven]

Swap in the 2.0 would fix it too

That'd be spending big money just to trade 3.6l problems for 2.0l problems.

 

[yokramer]

That'd be spending big money just to trade 3.6l problems for 2.0l problems.

Inherent engine eating issues for sounding bad on cold start is a trade off most should be willing to take.

 

[AnnDee4444]

We should be able to install the tires that WE BOUGHT with our own money on whatever size wheels we want.

A politician would call this the "Freedom of Tires Act"

 

[Remorseless]

Sounds like there are alot of jerks on this site

We prefer to be called "People with a sense of humor"

 

[TheRaven]

Inherent engine eating issues for sounding bad on cold start is a trade off most should be willing to take.

I would agree, if that were the tradeoff. Unfortunately reality is much different.

 

[Remorseless]

A politician would call this the "Freedom of Tires Act"

Gotta be a better acronym we can come up with. Like "Freedom of Unusual Pneumatic Accessories".

 

[smokeythecat]

Sounds like there are alot of jerks on this site

You should see my ignore list.

 

[Old Dogger]

The OP'S question: Please remember, most of what one hears in any Forum is negative. Why, because it is a opportunity to unload ones frustration, applicable to a failure that they have experienced. There has been over 10 million Pentastar 3.6 engines (the original and the PUG) sold. Any engine can fail, but overall the 3.6 is a good engine..IMO We have three in the Family. No major failures. 3000 mile oil changes, why...because we are in hot as hell Phoenix, which is also a very dusty environment. Engine air filter change every 6000 miles. The only two new Wrangler engines that I would own, is the 3.6 and the 392. But everbody to their own.

 

[whitechocolate]

@TheRaven

nevermore nevermore...

 

[Remorseless]

I would agree, if that were the tradeoff. Unfortunately reality is much different.

Head issues would be a wash - both engines are susceptible to coolant loss and head warping. 2.0 has timing chain tensioner issues on some model years (doesn't seem to be as much the newer builds, a couple failures on the forums but not a ton). Turbo itself has had no noticeable issues over the last 6 or 7 years. The coolant y pipe bolt issues were fixed by Jeep during manufacture (still mind boggling they didn't loctite those bolts), and there's an easy TSB for that one.

So I guess, which ones are the ones they'd inherit beyond that?

 

[TheRaven]

Head issues would be a wash - both engines are susceptible to coolant loss and head warping. 2.0 has timing chain tensioner issues on some model years (doesn't seem to be as much the newer builds, a couple failures on the forums but not a ton). Turbo itself has had no noticeable issues over the last 6 or 7 years. The coolant y pipe bolt issues were fixed by Jeep during manufacture (still mind boggling they didn't loctite those bolts), and there's an easy TSB for that one.

So I guess, which ones are the ones they'd inherit beyond that?

Anyone can take a look for themselves...there's plenty to read about...

https://www.jlwranglerforums.com/forum/forums/2-0l-4-cyl-turbo-engine-exhaust.23/

 

[yokramer]

Anyone can take a look for themselves...there's plenty to read about...

https://www.jlwranglerforums.com/forum/forums/2-0l-4-cyl-turbo-engine-exhaust.23/

So you have nothing .... got it.

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