I know plenty of jeepers and have yet to hear about engine issues.
My ‘18 JL has 30k on it and the motor hasn’t as much as had a hiccup.
I will admit though I didn’t do my due diligence before buying it. I’m probably the only dumbass in the world that didn’t know Jeep outsources their 3.6 engines from Fiat.
Had I known that it would have more than likely been enough of an issue for me to look at getting something else.
Previous vehicle was a Toyota Tacoma.....in comparison the overall quality of the jeep just isn’t there.....and boy do I miss my truck bed.
But like I said, it runs fine.
Just wait until the oil filter housing/cooler goes teats up on you. It’s not if but when. It’s a plastic part that WILL fail and when it does it is buried deep between the cylinder banks under the intake and fuel delivery system. I believe Chrysler quotes it as a 5 hour job. It is such a common problem that Dorman, the aftermarket parts maker, now offers an aluminum replacement. File this post away in your memory because there WILL come a day that you begin to smell coolant when you park your Jeep and you’ll wonder where 3 quarts of oil went since you aren’t burning it and there’s none on the ground. Just look in the vee between the cylinder banks and there will be your oil. In my mind this is THE BIGGEST fatal flaw with this stupid mini van motor. Good news though MOPAR’s newest motor will be a 3 liter inline 6. You can read all about it here or just do a YouTube search and you can watch HOURS of video concerning the replacement of the oil filter housing/cooler. Enjoy!
It’s been a few years but the USFS district manager told me Jeep was the most troublesome vehicle they purchased.
The latest problem is the oil cooler on the 3.6. If you do your own oil changes, it might be better. The oil cooler is plastic and if some over-zealous tech over tightens it, it cracks. There is an aftermarket aluminum oil cooler that now has a 3-4 week waiting period as a replacement.