I've got a terrible knock that sounds to to me like a lifter. Is anyone else getting anything like this? Dealer claims it is injector noise, but I know better. Anybody had this problem and been able to get it resolved?

 

Search for Hemi knock or Hemi tick. You will find many items. Different oil weights can help. That is why DC (at least man think this) change the recommended weight to 5w-20. Also, posting in the 3rd gen forum would help.