I have a thumping noise coming from the rear of my car. I can feel the rear passenger floor being hit. Could this be the infamous subframe failure, I had this problem for over a year now it's more pronounce when I drive through pot holes or bridge segments. Can I still get this repaired under the class action lawsuit? I had my car inspected before the free inspection deadline. I was told there was no problem, but I know I had that thumping noise before that inspection.