Are we all with 2012's going to have to face that these heads have been machined wrong or WTF!! 1 million pentastars made and not all are affected? Many have been affected and have been "fixed" then heads have been replaced after the "fix" didnt work. What went wrong!! Not good! So far my jeep is ok I think. Sounds good from my stand point. Been checking daily as I pull in the garage to see if anything is abnormal and so far all seems good at 1K miles... Hopefully I don't have to deal with the ticking issue.