I just wanted to say hello to everyone. I am new to this sight but not the jeep world. I am very thankful I found this sight and a couple of threads about new Pentastar issues. I read a few the other night and behold it opened my eyes to the Pentastar head issue. I knew it was getting louder but thought it was kind of normal for a wrangler. Everyone one I have owned has had its own "tune". I dropped my Rubicon off this morning and this afternoon I got the call that the drivers side "left bank" head has to be replaced. They were very quick to order the part and Chrysler also paid for me a rental until fixed. Everyone who has the early make of the 2012s, I would definately investigate immediately because Jeep knows theres a problem and they were very quick to take care of me. If anyone has any questions let me know! Thanks again! I am very glad to be part of the forum!