NHTSA Complaint #10223284 — 2005 FORD FREESTAR

I HAVE A 2005 FORD FREESTAR. MY ENGINE FAILED IN JAN08 AT ABOUT 47,000 MILES. I HAD THE ENGINE REPLACED($5100). WITHIN A DAY AFTER I PICKED IT UP AFTER THE ENGINE REPAIRS I NOTICED JERKING WHILE DRIVING. AT FIRST I THOUGHT I WAS SLIPPING ON ICE, BUT THEN I FELT THE JERK WHEN I WAS ON DRY ROAD. I TOOK THE CAR BACK TO WORTHINGTON FORD. THEY SAID THAT THEY COULD NOT FIND ANYTHING WRONG WITH THE CAR. I TOOK IT HOME AND THE PROBLEM GOT WORSE ...FAST. I WENT AGAIN TO WORTHINGTON'S AND FINALLY AFTER A JOINT TEST RIDE THE PROBLEM WAS ACKNOWLEDGED AND SAID TO BE THE TRANSMISSION. I WAS TOLD THE THIS IS A NEW PROBLEM THAT HAD NOTHING TO DO WITH THEIR WORK ON THE ENGINE. THE CAR AT THE TIME OF TURN IN WOULD JERK SEVERELY AND/OR SOMES COMPLETELY STOP OR NOT TAKE OFF WHEN GAS PETAL PRESSED. THE CAR WOULD EVEN JERK AT A STOP SIGN WHILE AT A COMPLETE HALT. THE FLUID LEVELS WERE CHECKED WHEN THE ENGINE WAS REPLACED AND WERE GOOD. THE FLUID LEVEL WAS CHECKED WHEN I BROUGHT THE CAR IN TO COMPLAIN ABOUT THE JERKING. FLUID WAS CLEAN AND FULL. TRANSMISSION FAILED ................WHY? *TR