Good possibilities. The Dealer Mechanic has rechecked everything, and no damage to anything. I looked at the plugs myself. all OK. nothing wrong with rockers, or new lifters, Timing is good. Injectors working properly. Everything checks out OK on the diagnostics, and says all good , but still rt. side dead. They are contacting Chrysler to see if they can shed light on the subject, even though it's at a Chrysler dealership now.T hanks