Ford corporate has gotten anal about warranty repairs on these new cars. It was rediculous what the service person had to do just to get my rear view mirror authorized by Ford corporate for a replacement. He had to take like 10 pics of my mirror and front windshield and overall car and that still wasn't good enough. Had to take the car back up there for more pics because corporate didn't like the first set.
Its everything anymore. Its unreal. But its years of mechanics just guessing and replacing parts. I know they had to tighten the string. But they are way over the top now.