MY FLEX STARTED HAVING A HARD JERK AND BANG WHEN GOING FROM REVERSE TO PARK. WAS NOT ALWAYS BUT FREQUENT. THE CAR STARTED TO RUN HOT WHEN SITTING IN A DRIVE THRU OR TRAFFIC BUT WOULD GO RIGHT BACK DOWN WHEN I STARTED MOVING. I TOOK IT INTO S MECHANIC AND HE REPLACED THE FAN. AFTER REPLACING THE FAN THE CAR BEGAN TO HAVE A REALLY BAD GRINDING NOISE WHEN IDLING OR TRAVELING. DO BAD I DID NOT WANT TO DRIVE IT. I TOOK IT INTO THE FORD DEALERSHIP AND AFTER 2 DAYS THEY CALL AND SAY THEY CAN'T FIND ANYTHING WRONG. WITHIN 4 MINUTES I GET ANOTHER CALL DAYING I NEED A NEW TRANSMISSION. THE CAR WOULD ECCELLERATE ON ITS OWN, SHUT OFF INTERMITTENTLY, AND CAR WOULD LAG BETWEEN 3RD AND 4TH GEARS. FORD DEALERSHIP ADVISED ME TO HAVE A KNEW TRANSMISSION PUT IN. CAR WILL SHIFT PROPERLY MOST OF THE TIME EVEN ON HIGHWAY. ONLY GET WHINING NOISE AT LOW SPEEDS. I WAS ALSO IN AN ACCIDENT CAUSING $13000.00 WORTH OF DAMAGE TO FRONT END AND AIRBAGS DID NOT DEPLOY AFTER HITTING A CAR DOING 35 MPH.