I work at a Hyundai Dealership and we had an old guy trade in his 14 GT base six speed. 7k miles on it and his wife wouldn't drive it so he got rid of it. About three days after its on the lot, I go to move it and it has a clicking or slight pop noise at idle and under 1,500rpm with very very light throttle application. Take it to ford and their mechanic does not hear it. I go down there and start it up and it does it. This morning I get a call that they are putting a new engine in it and it was approved by ford! This surprised me a lot, I had a 12 GT that I drove very hard and it did fine. Guess we traded for a factory jack up.
Ill put up a video I took before it went to Ford.