I have a FWD 05 Ford 500. It has the 6 speed automatic. My car has the same hesitating acceleration problem that others on here say is normal. But, now that mine is getting close to 100K i'm noticing that the down shifts are more noticeable and that every once in a while the transmission shifts EXTREMELY HARD as if its confused on which gear to be in or go to. But it only does this on occasion. Any suggestions?