Mods please delete

[Remorseless]

That was just one example...i felt it was far more important than "systemic issues" which could be something as simple as burning slightly more oil than normal. But I still disagree, the 2.0l is more problematic than the 3.6l. Your claim is not fact.

The 3.6 is totally more problematic. Something like 192 heads or blocks a week being replaced, per the techs in the head (gasket) thread. Tell me your preferred engine has systemic issues without saying your preferred engine has systemic issues...

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[siggy]

Time out! Get back to your day jobs everyone. Or off the crapper.

 

[TheRaven]

Lots of people buy McDonalds too, if we were to go by the majority for everything we would never have progress.

I agree...but that would be an argument AGAINST the 2.0l, not for it.

Man, don't let people like @TheRaven hear you say that! The full of shit part especially, since shit would screw up the accuracy of their "calibrated butt sensor"!

I told you before I don't play for your team...you need to stop obsessing over my butt.

 

[NWJeepr]

So, you can only get the crappy old boat-anchor V6 with the crappy Aisin manual?

Oh no!

...Anyway,

 

[F4Flyer]

The 3.6 is totally more problematic. Something like 192 heads or blocks a week being replaced, per the techs in the head (gasket) thread. Tell me your preferred engine has systemic issues without saying your preferred engine has systemic issues...

I do not disagree and this is anecdotal but the lead tech at a big dealer here says he always recommends the 3.6 over the 4 cal due to durability. That was a bit surprising. Fingers crossed! At around what mileage does the head or block issue pop up on the JLs? Anything to watch out for as an early warning?

 

[TheRaven]

The 3.6 is totally more problematic. Something like 192 heads or blocks a week being replaced, per the techs in the head (gasket) thread. Tell me your preferred engine has systemic issues without saying your preferred engine has systemic issues...

Right...because some member in some thread about the 3.6l said so. Ok. The post above this has a another member saying otherwise. I guess that's checkmate for you then.

 

[Remorseless]

Ah. Understood. I was picturing something different.

A few pics help, so the seals in question are shown in this pic (an aftermarket aluminum housing, but a copy of the Mopar design):

Those figure 8 seal channels are where seals can blow out and allow coolant and oil to mix. Edit: These have been revised on the current Mopar plastic housing. Anyone with a 3.6 should avoid the aluminum housings IMO.

This is what the Mopar unit looks like with the cooler installed

This sits right at the front of the engine in the valley between the heads. When it goes you end up with coolant and/or oil leaking into the engine valley and don't usually catch it until it starts coming out over the back of the engine and down the transmission and all along the underside of the Jeep.

There are other seals along the bottom that tie into the engine oil and coolant galleries that can let go as well

 

[yokramer]

I do not disagree and this is anecdotal but the lead tech at a big dealer here says he always recommends the 3.6 over the 4 cal due to durability. That was a bit surprising. Fingers crossed! At around what mileage does the head or block issue pop up on the JLs? Anything to watch out for as an early warning?

Could be he is more interested in keeping them coming back for him to work on and keep making money that leads to his opinion there.

 

[Remorseless]

I do not disagree and this is anecdotal but the lead tech at a big dealer here says he always recommends the 3.6 over the 4 cal due to durability. That was a bit surprising. Fingers crossed! At around what mileage does the head or block issue pop up on the JLs? Anything to watch out for as an early warning?

Not surprising to me, people hear turbo and go full luddite all the time.

The head and oil issues can pop up at random intervals, not a set time. My 3.6 in my JK ran for 100k mi with zero issues beyond a loose ground that caused issues with the oil pump solenoid.

Really just watch out for loud engine ticking (this is the cam issue that's pretty common, when a lifter fails you'll hear it ticking as the cam starts getting eaten away) and watch for coolant consumption or rough starts for the head issue.

 

[F4Flyer]

Could be he is more interested in keeping them coming back for him to work on and keep making money that leads to his opinion there.

Certainly possible but he is a pretty hardcore Jeep/wheeler guy and seems to be an honest legit type of guy. I just have my fingers crossed. He said the 4 cylinders have a lot of issues as the mileage goes up. I'd get either one and have no dog in this fight. The motor I really like is the V8.

 

[Ratbert]

I told you before I don't play for your team...you need to stop obsessing over my butt.

I personally would NOT have enjoyed having that butt sensor inserted, but to each their own. I'm trying not to be judgmental of alternative lifestyles!

 

[Old Dogger]

My thinking on this, that it is a fact for current. Customers will hear this and help to deplete 23's and 24's still in inventory, because that is what the customers want to purchase. So it maybe a play, to do just that.

 

[Heimkehr]

Thanks for the pics.

The one I've included here reminds me of the obsession with mass centralization on sport motorcycles...which serves an important if unique purpose in that application.

Here, though, it just seems like the engineers saw a challenge to crowd everything together for the sake of doing so. Maybe I'm wrong, but I do see a crapload of complexity where it didn't always exist...

 

[Remorseless]

Thanks for the pics.

The one I've included here reminds me of the obsession with mass centralization on sport motorcycles...which serves an important if unique purpose in that application.

Here, though, it just seems like the engineers saw a challenge to crowd everything together for the sake of doing so. Maybe I'm wrong, but I do see a crapload of complexity where it didn't always exist...

It aids in packaging I think. If you don't have to worry about space under the engine for a traditional oil filter housing, you can get super creative with packaging, especially in FWD applications.

It does make oil changes stupid easy and clean too though, to be honest. Just drain, undo the filter housing, swap paper filter elements, close the housing, close the oil pan plug, and fill.

But yes, a wildly complex engine for being naturally aspirated.

 

[TheRaven]

I personally would NOT have enjoyed having that butt sensor inserted, but to each their own. I'm trying not to be judgmental of alternative lifestyles!

But you are obsessed with men's posteriors...so...

It aids in packaging I think. If you don't have to worry about space under the engine for a traditional oil filter housing, you can get super creative with packaging, especially in FWD applications.

Not to mention making it SUPER easy to do an oil change.

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