3.6 epic failure

[Jeeperjamie]

Difficult to prove a negative. Proving a positive is easy - just find instances.
One can assume by lack of evidence that something exists that it must not be there, but the point is, proving a negative isn't so straight forward.
A search shows almost nothing on Jeep, but shows up a lot on GM and Ford.
So in that respect, i have proven that GM and Ford have a lot of engine issues related to major failures - and there's a lack of any evidence that Jeep has similar issues.
I showed what someone with critical thinking skills, pattern recognition skills, should be able to see - when seeking engine failures if you instantly come up with huge numbers in other makes, to the point of the feds being involved in the case of Ford, but the same searching doesn't show anything for Jeep/Pentastar - does that not indicate there's nothing out there to find?
GM and Ford show up fast- lots to find, many thousands, Jeep, not so much.
I did searches for failures for each of the "big three" as far as engine failures.
All I found with Jeep was ticking and misfires, and some of the law suits even being dismissed.
You saw what I found with Ford and GM.
It's a pattern of failures of the lower end on those engines, not the 3.6
In the day of the internet, people gripe when anything goes wrong. Huge failures often ignite more than complaints, but raging hate and posting all over any site that will take their posts.
So why isn't anything showing up when I run the same test, the same search, for each of the 3, and I get "ticks" for Jeep, catastrophic failures for GM and FORD.
I'd say I've proven something.

People put to much faith in what they read on the Internet, fact is they all have some sort of failures and some more than others but even foreign made cars are subject to failure. The age of threads and Internet mechanics are upon us and most are looking for validation for their gripes and what better way to find it than in a internet forum that has half of the people looking for ideas or bragging rights and the other half complaining. I've had a 3.6 fail in a 2011 Jeep Grand Cherokee but it didn't stop me from buying another Jeep and then another jeep because I understand these things happen and they took care of us.

That's the main reason I stay off Facebook most of the time other than posting in a runners group that we post our meetups and events in.

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[ShadowsPapa]

People put to much faith in what they read on the Internet, fact is they all have some sort of failures and some more than others but even foreign made cars are subject to failure. The age of threads and Internet mechanics are upon us and most are looking for validation for their gripes and what better way to find it than in a internet forum that has half of the people looking for ideas or bragging rights and the other half complaining. I've had a 3.6 fail in a 2011 Jeep Grand Cherokee but it didn't stop me from buying another Jeep and then another jeep because I understand these things happen and they took care of us.

That's the main reason I stay off Facebook most of the time other than posting in a runners group that we post our meetups and events in.

We also have to be careful if we include the failure of a 2011 3.6 in our data because the 2020 JT engine is a lot different in that area - different crankshaft, different rods, different size bearings, different bearing materials. So you have to say "how common are lower end failures in the PUG engine" not "how common are Pentastar engine failures".
The engine in our JT has a very different bottom end from what was in the pre-2015 Jeeps. (even pre-2018 Wrangler - they didn't get the upgrade engine until about then)
So in other words - if you find 10 instances of lower end failures of Pentastar 3.6 engines, and they are all from JK or pre-2016 Grand Cherokee - can't use those as that's a different 3.6

 

[Jeeperjamie]

We also have to be careful if we include the failure of a 2011 3.6 in our data because the 2020 JT engine is a lot different in that area - different crankshaft, different rods, different size bearings, different bearing materials. So you have to say "how common are lower end failures in the PUG engine" not "how common are Pentastar engine failures".
The engine in our JT has a very different bottom end from what was in the pre-2015 Jeeps. (even pre-2018 Wrangler - they didn't get the upgrade engine until about then)
So in other words - if you find 10 instances of lower end failures of Pentastar 3.6 engines, and they are all from JK or pre-2016 Grand Cherokee - can't use those as that's a different 3.6

That's true and a valid point made. There sure are a lot of the newer pentastar engines on the road and I rarely see one broke down so they must be doing something right. Even the older ones. I wouldn't hesitate to buy another Jeep Grand Cherokee if we saw one we like.

 

[jay21mojave]

Interesting news article in Detroit newspaper today - Center Line Mi is the home of the MOPAR National Parts Distribution Center; it is just 1 facility involved in the Strike. Perhaps more workers share this sentiment.

‘Enough is enough’: At striking Center Line facility, workers are ready for a deal

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[ErylFlynn]

Interesting news article in Detroit newspaper today - Center Line Mi is the home of the MOPAR National Parts Distribution Center; it is just 1 facility involved in the Strike. Perhaps more workers share this sentiment.

‘Enough is enough’: At striking Center Line facility, workers are ready for a deal

​ ​

Paywall site, can't read it.

 

[ShadowsPapa]

Paywall site, can't read it.

Headline says a lot. I've read less-than-mainstream articles implying the rank and file have been ready for a while, it's the rad leadership that's pushing extremes. Makes sense, my father was often commenting about such things when he was in the UAW and a strike was going on. He was the "let's be reasonable" worker while leaders tried to make names for themselves.
i bet the rank and file are ready to say "enough already, let's get back to work" and if so, good news for those waiting for engines, transmissions or for that matter, less than major parts that are hung up in this mess.
Maybe this could be the beginning of better news for the OP who just wants his jeep back - running fine in one piece.

 

[TheRealStreetcommander]

They make about 1 million pentastar every year. Probably 3-5M PUGs and 10-12M original, ~15M total production. It’s a triumph of engineering and manufacturing that there are so few failed. 1/10 of 1% failure, for any cause, would be 15,000 failed pentastar. The real number of failed pentastar since 2011 is likely not even close to that.

 

[ShadowsPapa]

They make about 1 million pentastar every year. Probably 3-5M PUGs and 10-12M original, ~15M total production. It’s a triumph of engineering and manufacturing that there are so few failed. 1/10 of 1% failure, for any cause, would be 15,000 failed pentastar. The real number of failed pentastar since 2011 is likely not even close to that.

Yeah, roughly 1 million a year or 1 every two minutes - but that's from years ago.
They topped 10 million in early 2019 so what's that suggest since that was not even 10 years ?

(introduced in 2010 for 2011 model year, to February 2019, that's well over a million a year)

 

[Xrayphoton1]

In theory, Would that Baxter oil filter adapter keep somthing like this from happening?

 

[TheRealStreetcommander]

In theory, Would that Baxter oil filter adapter keep somthing like this from happening?

Clever. LOL.

100%, without fail. Except for the 30% of time when it only works 80% of the time, every time. But then it wouldn’t matter anyway.

 

[In3briatedPanda]

Clever. LOL.

100%, without fail. Except for the 30% of time when it only works 80% of the time, every time. But then it wouldn’t matter anyway.

please be paul rudd.......

 

[DAVECS2]

It would not surprise me if contamination from the top end played a part in this.

 

[ShadowsPapa]

It would not surprise me if contamination from the top end played a part in this.

I wish the smart folks such as yourself and Hootbro would stop trying to inject logic in such threads. No one on the internet likes logic - it makes almost all posts and points totally moot.

 

[ShadowsPapa]

I wish the smart folks such as yourself and Hootbro would stop trying to inject logic in such threads. No one on the internet likes logic - it makes almost all posts and points totally moot.

All seriousness aside, or is that the other way around? Anyway, if there's a topic of interest to me, and I see either of the two mentioned above have posted about it, I will be more likely to read, especially their posts.

 

[RGLocations]

Hey all,
I have a 2021 Mojave with 9010 miles, heard some unusual engine noise took it to Jeep and engine is toast rod bearings metal in pan. Has anyone heard of this? I could not believe it and there is a strike on so waiting to see how long too get an engine. I will say the dealership is replacing it with no hassle.

Sorry to hear you're going through this, and with the current strike you'll need patience for a replacement. This sounds like an unfortunate rare event, I'm on my second Jeep with the Pentastar Engine, I just traded in my 2011 Grand Cherokee Overland with 272,000 original miles for a Gladiator Mojave. My experience with the 2011 engine, which was a first edition, had a few early head problems, but after the issues were worked out in the first year, that engine was flawless. Before I purchased the Mojave, I spoke with the Service Tech and a couple of the mechanics at the dealership (12 years servicing the GC Overland), they had nothing but great things to say about this current version of the Pentastar and waived me off of purchasing the Eco Diesel.

Hang in there, my experience with the Dealership and Jeep have been nothing but positive over the years.

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