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Old 05-13-2014, 03:53 PM
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2014 cracked oil cooler housings - looks like a serious issue

I have a 2014 JKUR. I noticed a big puddle of engine oil in the garage last weekend, and looking under the Jeep, the oil was dripping off the clutch cover, so I suspected it was the rear main seal. After thinking about it, I thought it was odd that the clutch wasn't chattering like I expected it would with a rear main issue, so I was a little skeptical that it was actually that. I just received a call from the dealer, and they said it was a cracked oil cooler housing.

Googling around, there are a bunch of people who have experienced this already, and all seem to be 2014s, including at least one Cherokee KL (the new one) with the 3.2. So, I looked around and yes, the 3.2L uses the same oil filter/cooler assembly as the 3.6L.

The 2014 3.6L oil filter/housing/cooler appear to be NEW parts from 2013 and earlier. They probably re-engineered these so they would be common between the 3.2L and 3.6L, saving money.

So, ladies and gentlemen, we have a Fiat/Jeep/Chrysler clusterfork in motion.

This is not a trivial issue. While mine cracked and wasn't leaking a ton, others apparently have blown out. If this happens on a trail 20 miles from town, you are going to be screwed.
We need a survey sticky thread on this issue. How do we do that?

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Old 05-13-2014, 04:37 PM   #2
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How many miles on it?

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Old 05-13-2014, 05:14 PM
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How many miles on it?
Mine has 12K, but others have been anywhere from 100 miles and up.
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Old 05-13-2014, 07:55 PM   #4
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Weird that nobody else is chiming in, maybe this problem is uncommon.
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Old 05-13-2014, 08:00 PM   #5
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where exactly is this oil cooler located.
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Old 05-13-2014, 08:05 PM   #6
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where exactly is this oil cooler located.
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Old 05-13-2014, 08:08 PM   #7
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Wow, doesn't seem like much of an oil cooler.. How much heat could that really dissipate? Does it perhaps serve some other purpose?
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Old 05-13-2014, 08:22 PM   #8
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Wow, doesn't seem like much of an oil cooler.. How much heat could that really dissipate? Does it perhaps serve some other purpose?
It appears to create an aftermarket opportunity.

My car has a plastic valve cover with integrated PCV, the PCV cracked and emitted a shrieking whistle, think Steam Locomotive, about 180db for a drive through rushhour traffic and 100 miles home. I was less than pleased.

Went through bollox like this with a Fiero, too.

Didn't see this sort of crap on 1960's engines.

Something to bear in mind when my Jeep JKUR comes in.
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Old 05-13-2014, 08:23 PM   #9
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I just can't imagine putting any sort of cooler in the valley between the cylinders... seems to me that's a pretty hot place. Maybe it's an oil heater?
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Old 05-13-2014, 09:29 PM   #10
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The oil cooler is a heat exchanger, where oil and coolant flow through the same housing, that little silver elongated block.
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Old 05-13-2014, 09:50 PM   #11
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That's actually a fairly common place for them in a V.
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Old 05-13-2014, 09:58 PM   #12
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Has anyone thought about giving up on Chrysler and moving on?

I have.

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Old 05-13-2014, 10:38 PM   #13
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The oil cooler is a heat exchanger, where oil and coolant flow through the same housing, that little silver elongated block.
It's a foil plate heat exchanger. I have one that looks just like that on my home boiler, for hot water. Same size. According to my heating comtractor, this little thing has over 4 acres of heat exchange surface!
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Old 05-13-2014, 10:46 PM   #14
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I wonder who the contractor is that made the exchanger?
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Old 05-13-2014, 11:12 PM   #15
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thanks for the clarification. I'll be keeping an eye on mine for leaks.
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Old 05-14-2014, 07:51 AM
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Weird that nobody else is chiming in, maybe this problem is uncommon.
The problem only appears to be on 2014's, so the tidal wave is just starting. I found posts on this site from at least five owners already, and two brand new Cherokees on other sites. Only a minute fraction of Jeep owners post on Jeep sites. I also found two people who had already submitted complaints to the NTHSA, since the problem could cause an engine seizure or fire. I urge anyone who has had this issue to go to safercar.gov and post a complaint.

The part is backordered in Chrysler's system, but my dealer has seen this so many times already that they PRE-ORDERED some housings. Think about that.

I was out in Moab last week, on a 4WD road HOURS from the nearest town, and over 150 miles from the nearest Chrysler dealer. If this had happened out there, it would have cost over a grand just to get the Jeep to a dealer. I bought this vehicle to drive places like that, just like I spent years wheeling my 1997 4Runners out there, without ever having a single issue like this. My two 4Runners had a combined total of 520,000 miles on them when I got rid of them.

Yes, I am pissed.
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Old 05-14-2014, 07:58 AM   #17
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I'm going to carry more oil that I'd normally carry for sure.

Definitely anyone that has this problem should report it, however I doubt the NHTSA will care unless this causes a fire. Sure a seized engine on the highway could cause an accident. However this is a government agency and logic doesn't enter into the equation.
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Old 05-14-2014, 08:19 AM
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I'm going to carry more oil that I'd normally carry for sure.

Definitely anyone that has this problem should report it, however I doubt the NHTSA will care unless this causes a fire. Sure a seized engine on the highway could cause an accident. However this is a government agency and logic doesn't enter into the equation.
I disagree about the NHTSA. There is a lot of focus right now on obvious defects being ignored by manufacturers, they they have a lot of egg on their faces over being ineffective. I'd bet a single phone call from NHTSA to Jeep would get a lot of attention.
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Old 05-14-2014, 08:42 AM   #19
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Has anyone thought about giving up on Chrysler and moving on?

I have.

.
Not yet, despite a failed oil sensor, clutch switch, rear main seal, inner axle seal, and differential fluid. There is absolutely no quality control what so ever in these vehicles. IF Ford makes an awesome Bronco it will force JEEP to improve their quality, but right now there is no vehicle on the market like the Wrangler so they don't have to be high quality.
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Old 05-14-2014, 08:46 AM   #20
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I disagree about the NHTSA. There is a lot of focus right now on obvious defects being ignored by manufacturers, they they have a lot of egg on their faces over being ineffective. I'd bet a single phone call from NHTSA to Jeep would get a lot of attention.
They ignored 1000's of complaints (including mine) about FRAM motorcycle oil filters blowing seals and leaking oil onto the ground right in front of the rear wheel. This was a huge safety issue, I was lucky in that my blew out at at a stop light and not at speed in a canyon. A few dozen racers went down due to this luckily nobody died. FRAM spin-ons were banned from most racing for several years as well. NHTSA did nothing, FRAM did nothing.. didn't care that these filters were still being sold.

Now maybe that's just because it's only motorcycles, or the numbers weren't high enough. However I have zero confidence in NHTSA doing their job. I'd love to be proven wrong in this case and get a pre-emptive fix. But I'm not holding my breath.
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Old 05-14-2014, 09:49 AM
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They ignored 1000's of complaints (including mine) about FRAM motorcycle oil filters blowing seals and leaking oil onto the ground right in front of the rear wheel. This was a huge safety issue, I was lucky in that my blew out at at a stop light and not at speed in a canyon. A few dozen racers went down due to this luckily nobody died. FRAM spin-ons were banned from most racing for several years as well. NHTSA did nothing, FRAM did nothing.. didn't care that these filters were still being sold.

Now maybe that's just because it's only motorcycles, or the numbers weren't high enough. However I have zero confidence in NHTSA doing their job. I'd love to be proven wrong in this case and get a pre-emptive fix. But I'm not holding my breath.
I think an aftermarket oil filter would be a different issue in the NHTSA's eyes.

If the frequency of oil leaks due to a cracked oil cooler housing turns out to be as bad as it appears to be, the key to getting Chrysler to own up is going to be to make it a PR nightmare. Get Consumer Reports involved, get a sticky on every Jeep/Chrysler website advising people to not buy a 2014 Wrangler *or* Cherokee 3.2L, get the NHTSA to at least give it a keyword in their database, etc.

I think this is a worse issue than the cylinder head issue, becasue you had some warning with that one, it didn't ruin the entire engine, and you had a limp home possibility. The oil cooler is potentially an issue that can ruin the entire engine and strand someone on the side of the interstate or in the backcountry.

I'm curious to see what Jeep will do the first time someone doesn't see the oil drips and seizes their engine. I'm lucky I caught it, because I have a gravel driveway that doesn't show drips. I just happened to park in the garage one night, and got lucky the next day when I opened the garage door before my wife parked her car over the oil spot.

I check my oil every third time I put gas in, but how many people do that? And some of these leaks are apparently bad enough that they would drain the entire crankcase in a few thousand miles.
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Old 05-14-2014, 09:55 AM   #22
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Wonder how many of these engines are on the road in 2014's? Did they change the heat exchanger in 2014? Does this part only exist on some variants, or do all of the 3.6's have this part? Any word if this is just on a problem on a few models, maybe some models stress this part due to routing of hoses?

Probably tons more interesting questions around this issue....

EDIT: http://www.allpar.com/news/index.php...v6-oil-filters notes that the oil filter change "may have coincided with changes to the oil cooler;"
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Old 05-14-2014, 10:52 AM   #23
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Number of 3.6L VVT engines produced, overall surpassed 1 million already.
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Old 05-14-2014, 11:06 AM   #24
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Number of 3.6L VVT engines produced, overall surpassed 1 million already.
Question is how many 2014 engines and do they all have the same heat exchanger design? Just wondering why there aren't 1000's of minivan owners with this problem?

I did some searching on NHTSA site and 2014 Chrysler only has a few complaints, nothing related to this issue. Also pokes around at 2014 Dodge, didn't find any oil cooler/heat exchanger problems. 2 Complaints for this issue on Jeep Wranglers. GC had tons of complaints, didn't find any for this issue. Didn't dig any further..

Maybe it's just a matter of time.
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Old 05-14-2014, 11:21 AM   #25
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but right now there is no vehicle on the market like the Wrangler so they don't have to be high quality.
Yes, and many loyal Wrangler people will accept whatever cheap, obsolete or poorly made crap Chrysler throws at them so long as it has a solid front axle and a folding windshield. I do wish someone else would market a SUV 4x4 in the American market to compete with Jeep. The H3 was a good 1st effort by GM, but was killed because it had a fatal flaw; a Hummer badge.
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Old 05-14-2014, 11:49 AM
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Question is how many 2014 engines and do they all have the same heat exchanger design? Just wondering why there aren't 1000's of minivan owners with this problem?

I did some searching on NHTSA site and 2014 Chrysler only has a few complaints, nothing related to this issue. Also pokes around at 2014 Dodge, didn't find any oil cooler/heat exchanger problems. 2 Complaints for this issue on Jeep Wranglers. GC had tons of complaints, didn't find any for this issue. Didn't dig any further..

Maybe it's just a matter of time.
I found two complaints on cracked oil coolers on the NHTSA website by searching on 2014 Jeep Wrangler here: http://www-odi.nhtsa.dot.gov/owners/SearchSafetyIssues

There are four separate reports of 2014 cracked oil cooler housings just in this thread on this forum: https://www.wranglerforum.com/f274/20...es-522665.html

There are two other reports in other threads.

Then there is mine.

Total: Seven 2014 Wranglers with cracked oil cooler housings, just on this forum. ZERO issues with this part for any other year.

I've searched a couple of 2014 Cherokee forums and the exact same issue has been reported there, which makes me think this whole thing is related to a change Chrysler must have made to make the parts common to both the 3.6L and the 3.2L used in the Cherokee. I know the oil filter is the same, and it is a new filter for 2014.
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Old 05-14-2014, 12:05 PM   #27
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Not yet, despite a failed oil sensor, clutch switch, rear main seal, inner axle seal, and differential fluid. There is absolutely no quality control what so ever in these vehicles. IF Ford makes an awesome Bronco it will force JEEP to improve their quality, but right now there is no vehicle on the market like the Wrangler so they don't have to be high quality.
Well, this has been my third Jeep since 2009... mine has been trouble free other than the TON of aluminum I have in my antifreeze - you probably do as well. If I had known Chrysler was cutting corners, like NOT thoroughly cleaning the block, heads, etc. or testing the OAT antifreeze to assure the new stuff isn't etching away at the aluminum, then I wouldn't have considered buying another poorly engineered vehicle...

Simple as that ... I would have put $10K into my old Jeep and bought something else.

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Old 05-14-2014, 12:14 PM   #28
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Yes, and many loyal Wrangler people will accept whatever cheap, obsolete or poorly made crap Chrysler throws at them so long as it has a solid front axle and a folding windshield. I do wish someone else would market a SUV 4x4 in the American market to compete with Jeep. The H3 was a good 1st effort by GM, but was killed because it had a fatal flaw; a Hummer badge.
I'll be honest with you. Wanting a new Wrangler is the only reason I'd ever consider purchasing a Chrysler/Fiat/whatever they are now.

Luckily my Wranglers aren't my DD's, so if they shit the bed, I'm not stranded for too long.
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Old 05-14-2014, 03:59 PM
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OK, now we can get closer to reality. The service advisor on the phone said my issue was a "cracked oil cooler cover". However, the part replaced was 68105583AA - Adapter - Engine Oil Filter.

Now, if you google this part number, you will find that this is a new part - it fits 2014 only.

A little more detective work found this:


Notas de imprensa - Hengst SE & Co. KG


Chrysler counts on Hengst Energetic®-System:
Oil Filter Module of the V6-Pentastar-Engine-Generation is made of a new and special polyamide.

Increased flexibility and production efficiency, reduced usage cost, and better fuel economy were the goals that Chrysler Group LLC has achieved with the 3,6L Pentastar V6 Engine. Chrysler assigned Hengst to develop and produce the integrated top loading Energetic® System oil filter module. The 2011 Jeep Grand Cherokee is the first vehicle built with the new engine generation.
The Hengst Oil Module has been specifically designed with a polyamide plastic housing with a disposable filter cartridge and integrated cooler to meet the engine’s requirements. The result is a cross-functional, lightweight component that occupies a minimum of space and is perfectly fit into the V of the engine. An Oil Flow Splitter in the heart of the module regulates the oil flow to the cooler.
Another advantage is provided by the environmentally friendly Energetic® System: Only the fully combustible filter cartridge is replaced, while the entire module is mounted to the engine block and needs no other service for the complete life time. This not only simplifies the oil change process but also eliminates the multi material waste of a spin-on oil filter.
"It has been a tremendous opportunity to work with Chrysler on this program to showcase our system integration, technology, and filtration expertise. Meeting the expectations in terms of design, cost and timing was only possible through the close collaboration and support from Chrysler” says Robert Junker, CEO of Hengst of North America, Inc.
The new Pentastar is a substantial step forward to boost the fuel efficiency by 25% by 2014. The Pentastar engine will eventually replace all seven existing Chrysler V6 engines.

Both, the Pentastar V6 Engine as well as the Oil Filter Module have received special attention among experts in the industry. The Pentastar Engine is one of 2011's "Ward's 10 Best Engines" and the Polyamide Hengst Module was nominated as a finalist in the Society of Plastics Engineers "Automotive Innovation Award 2010”.


I can't post the photo of the piece, but it is shown at the link. It is a piece of plastic that integrates the oil filter housing, plus the oil cooler attaches to it, and it has oil and coolant passages.

Obviously, Chrysler spun a revised part and the new part has a problem. Maybe they switched suppliers, or maybe it is a bad design, or maybe it is made out of less super-duper plastic. Apparently a similar part for the 3.2L has the same issue, but it must be under a different part number.

This thing is a beotch to get at. It lives *under* the intake. Not a trailside repair, in fact, depending on exactly where it cracked, you probably wouldn't even be able to get at it with some JB Weld for a limp home fix.

This sucks.

So, anyone with a major oil leak on a 2014 3.6, get out your paperwork and see if 68105583AA is the part replaced.
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Old 05-14-2014, 04:28 PM   #30
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Well done, thanks for passing along the info.

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