The first item i have had issue with and continue to have issue with is the phenomenon referred to as death wobble that is traceable to steering components and potentially suspension. there is no clear solution and a known problem that ford does nothing about the second problem is another known problem at ford the body mount bushings which deteriorate over time. both issues ford is aware of but their service personnel must be directed to act as the know nothing because ironically no one knows about either or there is sparce knowledge of both issues they are both driving issues. however the body mount bushings you can see best when parked