I was on my way to work today on the highway. I had the cruise control set at ~70mph and all the sudden my engine started hesitating and the check engine light started flashing. I know that a flashing CEL is bad so I immediately pulled off to the shoulder. When I came to a stop, the CEL turned off but the Jeep was shuddering and idling very rough. I turned the engine off and tried to figure out what to do next.
I was figuring flashing CEL = Jeep was going to have to be towed. Traffic was whizzing by me at 70+ mph and I was very close to my exit, so I decided to attempt to get off the highway to a safer location. When I started the Jeep back up, the idle was back to normal and there was no shuddering. The CEL came on but, this time, it was solid instead of flashing. I started driving again and the Jeep seemed to be running normal except for a very slight hesitation, but nothing compared to the original hesitation.
I ended up making it all the way to work with no issues. I called the Jeep dealer that's local to my office and asked if I could bring it in but they told me they were too busy and couldn't take any appointments until next week.
So, after work, I carefully drove the Jeep back toward home and took it my local dealer since they don't require appointments for service. Again, the Jeep seemed to be running normal - just a very slight hesitation in comparison to earlier.
The dealer diagnosed the CEL and told me I need a new cylinder head. They ordered the part and said it will hopefully be in next week. They released the Jeep back to me and said it's OK to drive until the part comes in. They just said I might notice some hesitation though.
I did some searching and saw quite a few posts about this issue for 2011-2013 WK2s but I didn't really see anything for 2014+ WK2s. I was just curious if anyone else has experienced this issue with their 2014+ WK2? I'm a little surprised that a vehicle with only ~10,500 miles needs a new cylinder head. Also, is it really OK to drive the Jeep until the part comes in?