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Trying to find others who have trouble with thier 2020 jeep gladiator sport 3.6 motors

ShadowsPapa

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Engines are designed and made by humans. All of the parts are designed and made by humans. Even the robots used are designed and made and programmed by humans.
Over 20,000,000 of the Pentastar 3.6 engines out there, now and then one is likely to blow a gasket.
As we say here "@#$% happens" (insert whatever crude word you want in there)
It's not common, but geesh, out of the millions of these made to assume none of them will EVER blow a head gasket, regardless of care? Not reasonable by any stretch of the imagination. Someone, somewhere, at some time, may spin a rod bearing, or main bearing, break a piston, blow a head gasket, crack a block or head, break a valve, have an oil leak, it's going to happen. 20,000,000 (20 MILLION) of these, someone is going to have "bad luck".
In manufacturing there's also a "stackup of tolerances" where things may be in the correct "range", within that 0 plus or minus .1 and the next part is on the other edge, and you have a looser fit than the next guy.
It's like poker - once in a while by pure chance you get the bad hand and nothing you can do will win (other than being a great bluffer)

To make things worse - the desire, and/or tendency, of Jeep owners to want to keep their engines running under 3,000 RPM can cause issues- increased cylinder pressures and heat, forcing them to run below their peak RPM area, that generates more pressures on the heads and gaskets (stop trying to force low RPM! Let it run as designed)
So if taking care of an engine means babying it and trying to force the RPM to stay low, even when things are loaded, that's actually on the edge of abuse.
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shovel74

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LOL - that's almost funny. So an engine should have no problems at over 100,000 miles, no matter what.
How about all of the Ford and GM/Chevy and Toyota and other engines that lose head gaskets, lifters and more.
Seriously, is this your first vehicle? Gotta ask, as I made much of my money fixing engines with head gasket issues, blown water pumps, cracked heads and blocks, spun bearings and more - all under 100,000 miles.

Are we being trolled? This just doesn't seem right that someone has never known an engine to have a small issue at over 100,000 miles- like it's a first ownership, or, whatever.
No not my first car
 

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ShadowsPapa

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And I have knowledge of mechanics
Sorry, but I do have to question "how much knowledge" if you are amazed that an engine actually blew a head gasket at over 100,000 miles - yes, most don't, but it's not like it's impossible or it's never happened or it's abnormal.
Again, for many years, I made my money on fixing things that broke - and I'd say going over 100,000 miles without any issues at all is better than what many makes and models do.


It was well taken care of
That doesn't matter - it's still a human-made mechanical device.


But know lots of jeep owners who say it should have gone a lot farther
Of course! But not ALL of them. You aren't talking to mechanics, you are talking to owners giving opinions. Not facts.
Sure, some go over 200,000 miles without issue, and others go only 90,000 miles.
I don't know what you expect - absolute perfection on all engines?

Here's a snippet - which cars are most likely to blow a head gasket -

The top offender is the 2006-2007 BMW 3 Series, with head gasket failures possible between 90,000 and 138,000 miles. From there it's a parade of Subarus with the 2006-2008 Impreza, 2001-2009 Outback, and the 2001-2009 Forester.

I still have trouble believing anyone thinks that good maintenance means they'll never have a problem and it's unrealistic to believe that a head gasket can go with that low a mileage.
Something fishy here.
Anyone with real mechanic experience would shrug it off, get it fixed and move on - griping, unhappy, but understanding things happen.

In sort - I believe your expectations are unrealistic - to think that no engine should ever lose a head gasket and that your care can make it last forever.

Changing oil and air filters isn't going to matter. Nothing in the world you do can matter (unless you mess up using the wrong coolant, the wrong coolant ratio, don't bleed out all of the air after a coolant change and so on - then you can cause failure)
And - we don't know what you did to or for the cooling system - we don't know any details of the coolant you may have used, if you tried to change the coolant or flush it and so on - could be problems related to that something you actually overlooked.
 

ShadowsPapa

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Other than collect a few sad stories from others, what are you expecting to get out of such info?
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
This right here - and besides "what are you expecting to get out of such info" - why?
 

Zachanadandy

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You got over 100k trouble free miles and you're trying to find others to prove a manufacturer defect? There's a reason warranty periods aren't infinite. Every mechanical thing will break eventually. 2 parts built on the same day in the same factory can have wildly different service lives. Look at the 3.6L. I've seen a couple 600k mile examples. We've seen some fall early. You made it to nearly double the powertrain warranty before you had a failure. That's a win. Fix it, sell it, v8 swap it, or whatever you choose you still got a very fair life out of it.
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