NHTSA Complaint #11516163 — 2014 DODGE JOURNEY

I bought this car used but it only had 26340 on it and now it is almost to 30000. When driving it sounds as though the motor is knocking, but the oil is fine when checked on. It seems to have difficulty changing gears, sometimes way to fast and it whines other times it struggles to shift gears. Rpms are not steady they are bouncing around high love. When it does get to speed it feels as though the brakes are being appflied. At times the motorwhines because, the gear is to low it starts to get loud and become very hesitant when shifting to the higher gears. Sometimes it feels like the motor or something is going to come offf. There is a bunch of rattling going on . When I do park and turn it off, shortly after it sounds as if there is something running around inside the motor area. I was told it runs great and haven't even put 3000 miles on it. I think it's going to blow up or just die