My brothers 3500, 159 wb, high roof PM all of the sudden started running bad and service engine light came on. He went to dealer on Monday, they checked it and said it was internal engine problem. So of course they have to deal with Chrysler on the problem. They changed oil twice and lots of metal came out both times not good. They pulled oil pan and top of motor and found more metal. There is a week of work shot. They recommended a new engine to Chrysler now they have to wait for the okay. This is very unusual for a new engine to fail so soon 5000 miles, so I am sure Chrysler is checking it out. I will keep you posted, Hopefully be fixed by early next week.