My truck has always had awkward drivetrain characteristics. When cold it shifts a little differently, then again so do the brand new trucks. I’ve always had the 2-1 “bump” and occasional light clunks from 3-2 and 2-1 that come and go. Also gets light clunk at times if I come off gas at low speed and get back into it lightly (parking lot speeds). Almost feels like something is loose or disengages and re engages. All these “issues” I have are very well documented in Expeditions and F-150s and many never saw any solutions. Some said slip yolks, programming etc but no one came to a consensus. Many mechanics and people think it’s the end of the world and the trans is shot.......but if it’s been doing it for 160,000+ miles is it really an issue or just an annoyance? All this being said my trans shifts smoothly and works well, never misses a beat. My most recent symptom that is actually “new” is a clunk when I shift from park to reverse. My point is.....don’t let people scare you into parting with your money over nothing.