I have a 2016 Jeep Sahara that has a valve tapping in the engine @37000 miles.
I took it to the dealership where the service team were helpful and great. The Service Manager and the Mechanic looked and heard the tapping and confirmed that it was a problem. They kept my car 5 days, had parts ordered in advance, mechanic scheduled, then Chrysler Jeep sent someone that said it does not tap loud enough!!!! I want you to imagine, you can hear this valve tapping driving down the road inside the Jeep. Intermittently it is even louder.
The dealer stated to me that Jeeps have a problem with the heads and especially on the left side. That they have seen this before and had to replace them. So, this issue is known to Jeep. Yet the dealer was powerless to assist in this warranty case due to Jeep.
So, my wife is scared to drive her $40,000 jeep because like a Suburban we had dropped a valve into a cylinder leaving her stranded.
I personally find this offensive that Chysler Jeep will not warranty a defective head, knowingly it has an issue and their advice is it needs to blow up endangering your wife and possibly stranding her in a country road somewhere.
Chrysler Jeep should step up and do what is right for their customer. My wife loved her yellow jeep and having one. She was really proud to be part of being a jeep owner and is now afraid of driving it. Really sad.