NHTSA Complaint #11440601 — 2014 HYUNDAI SANTA FE

About 4 weeks ago I was driving about 50 mph and slowed to take a right turn, when accelerating out of the turn I had no power, but the engine was still running fine. I could get up to about 40 mph when I pressed the accelerator all the way to the floor and held it there. I immediately turned around and went to the Hyundai dealership that was just a mile away. The problem was diagnosed as needing a new transmission as first gear was completely gone. We asked the dealership to diagnose any additional problems and they said there were no other issues with the car. The part was ordered and the car sat for 3 weeks at the dealership. Upon being notified the work was done on the replacement transmission we were told that during the final test drive by the technician that the engine had very loud knocking sounds. We were told that a new engine was needed. We are not sure if there is negligence on the part of the dealership service dept. or if there is something else going on. We noticed several other recent issues about this similar engine failures on the NHTSA website and wanted to report this as well. Current mileage is 176,000.