Jeep Cherokee Forum - 2019 Jeep Cherokee Limited

I just got my brand new 2019 Jeep Cherokee Limited V6 Tuesday. It had 8 miles on it and I drive a long ways for work and back so I have 120 miles on it. I notice when coasting 40mph or more and then accelerate it does like a grind/clunk/metal on metal sound and some times when i let off the gas at these speeds then goes away, never from a stop to start acceleration or low speeds. It does not do this any other time.
Has anyone had this issue? We haven't been able to pinpoint it and haven't had time to call the dealer to see if this is normal or not.
I have tried listening to videos online but none of them sound like what I am thinking it sounds like.