The noise was identified by me and the service manager. Chrysler engineer also heard the noise. It was getting louder and had to trade it in for another. My 2011 has no noise. They say that some jeeps come with that clicking noise but that is normal. For me that was not normal and cannot stand that noise. The noise would get better if I put super unleaded gas. As you know gas mileage is not good on a Jeep.
Also I started hearing that noise after putting 1500miles on it. I hope you dont have any problems. thanks and congratulations on your New Jeep.