This is just the tip of the iceberg. That engine is prone to expensive failures. And has been since it's introduction. Go on the Jeep forums and search "Eco Diesel problems". You'll get the phone book.Why all the hate for that engine? I've never owned one, but as usual here, neither have most of the haters.
https://carbuzz.com/news/why-new-ecodiesel-owners-need-to-beware-of-engine-failure