we're still interested in reproducing these. If someone has one they want to send to us, we'll cut a deal in exchange for helping test fit / provide pics / etc.
I'm getting up there in miles.. watch for 'the tick'.. known issue with the cams/lifters.. the left side usually goes out about 70k, the right side 140k... the only other issue I see long term right now is the 3.6 may have a design flaw allowing piston slap as it ages. Seeing some of that now..Yeah, I def agree this thread eventually became the F*-The-Heating-Core thread, but in fairness, with somewhat of a good reason. Being new to the Jeep family (coming from Rovers), these are the main things I noticed that caused me pause, and some of the solutions...
The engine's running temp! THIS freaked me out, as my 'new-to-me' 2018 Rubicon with 15,000 miles coolant temp runs between 205* and 235* on long Colorado hills; then the thermostat kicks in and it drops like a lead balloon to 205-ish, only to start the process again. Heat works great. AC works great. No other issues.
So three (3!) calls to DIFFERENT dealers' service managers + many comments here + many other opinions/information on other Jeep forums convinced me this was Jeep's 3.6L Pentastar's engine "NORMAL" running temps. Crazy to me being old school, when you used to freak out if your temp ran above 190*, but I finally understood EPA, MPG, and other factors leaned Jeep/Chrysler in this new direction. So fine, all good.
** This often freaks out Jeepers coming from a TJ. I had a TJ, always sat there at 210, got up to 220 if you were really working it, and you don't want to stay there long. The coolant cycling between closed loop and open loop is roughly 206 - 226 degrees. Perfectly normal to get up to 235 when working it on a hot day, I did that a few times in the canyons, but it never stays there long, just while actively being worked.
The "automatic temp control" cluster! THIS was also difficult to fully understand upon driving my new Jeep. The way is presented in the dash, you'd imagine it works like every other SUV out there (I.E. Range Rover, Disco, Lexus, Mercury, etc...) This has nothing to do with these brands being "luxury" by the way. The way the Wrangler's "auto temp" control works is very different in the sense that there is no real difference between the temp settings in the dial, other than basically 3 settings: warm-hot-lava hot. The dial shows 72*-74*-76*-78*-80*-82* but in reality, the blend doors and actuators work hard to get your Jeep's cabin hot, then it's "ehhhhh, it's pretty warm in here; take what you got and smile." So fine, all good.
I don't even know where to begin on this mess. First with some interesting stuff you might like, the automatic HVAC has a humidity detector and temp detector, located behind the dash where the slotted circle is by the key. My Jeep has a manual system, yet when I'm driving around and it's humid and I just some fresh air flowing in so I set mine on the coldest setting and just the fan mode (no defrost, no a/c) - mine will still freak out about what we think is humidity detected - even though it doesn't have the right HVAC brain for that, and it automatically turns my a/c on and the a/c light won't come on - but you can tell the a/c is blowing cold. nobody has figured that one out - and they replaced my HVAC brain twice, and still happens...
The faint, faint, faint, coolant smell upon engine shut off! THIS made me think I was crazy or at least slowly loosing my mind. Like @Lusus_Naturae above, when I stopped for gas at a station or in my driveway after a long drive, I could SOMETIMES catch a faint woof of coolant. Never any signs of anything, anywhere. I also eventually flushed the coolant system (some sediment in the reservoir bottle present), and I conducted several "back-flushes" of the heater core (also sandy sediment clearly exiting the system under pressure). Never overheated. Never puddles of anything under the Jeep; and I believe my temps at the vents are hot as hell, but never actually measured them. I think I wanted to keep my sanity.
Ever since I bought it..still drives me crazy..
*I have not have any issues with the radiator OR the oil cooler, that I know of. While I did my radiator flush, I was NOT able to unscrew the plug at the bottom. so I ended it up removing the big hose and flushing it that way. But other than that, no other obvious issues. Fingers crossed.
I now only still have 23,000 miles. These are just "glitches" to me cuz' I always wanted to have a Jeep and now I'm balls deep into it with modifications and overlanding set up. There's no going back. I hope to get 250,000 miles out of it, but I have posted on other threads to get owner user feedback, and to be honest, while a FEW have reported good high mileage, most owners have bragged about "87,000 miles...and counting" LOL so far. We'll see.
I see no reason not to get this high mileage of these engines but time will tell....
I don't know why people still try to 'reverse flush' the system. Just swap the core. Save yourself hours of time and futile effort.... reverse flushed the heater core and said it was blowing warmer air. Maybe a tad, but not much. I reversed flushed it (with a pond pump and CLR for radiators in a 5 gallon bucket, changing direction every 1/2 hour for 6 hours) then flushed the complete system and replaced thermostat. It did not effect the air temps coming out of the vents.
The next day, I did the quick heater core removal, and replaced the core, now HOT (195) air out of all four vents.
It was settled with terms not disclosed.So does anyone know what came about the lawsuit for the radiator coollers?
I had not seen this. UGHHH......well, I have an 18'. Maybe by then CJD tried to do something on their own.It was settled with terms not disclosed.
A Jeep Wrangler heating and air conditioning lawsuit is over, at least for the three named plaintiffs who filed the lawsuit against Fiat Chrysler (FCA US).www.carcomplaints.com
So, nothing came of it. Sadly.
The JK and JL are/were made in different facilities.I had not seen this. UGHHH......well, I have an 18'. Maybe by then CJD tried to do something on their own.
In fact, I have such a late-production JK, that my Recon came off of the line in April of 2018 with a VIN# that contains the letters "JL" midway through
Agreed. I did do that ALREADY, at about 20,000 miles.The JK and JL are/were made in different facilities.
Only solution the dealer should offer you is to do a 'power flush' and replace the coolant. These vehicles all left the factory with whatever in the cooling system and it's later kills your heat. Sooner you flush and replace the coolant, the better. Even of they don't, make an effort to flush and replace the coolant on your own anyway. You may get lucky and save your core.
We are currently in a class actin against Mercedes for emission onour 2015 Mercedes chassis and will receive over 3k! Never disregard the class action suits! 🧐For sure.
I was in a Class Action. The settlement was I got $0.03 and the lawyers got $7,000,000.00. What did I expect? Well, at least back the $35 I was wrongly changed.