NHTSA Complaint #10429546 — 2006 FORD FIVE HUNDRED

I'M NOT SURE IF THIS IS A POWER TRAIN OR OTHER PROBLEM, CAR LURCHES DANGEROUSLY AT LOW SPEEDS, AND WHEN CHANGING GEAR INTO AND OUT OF REVERSE. I HIT A POST PARKING IN AUGUST OF 2010 DUE TO THIS, AND IT'S BEEN GETTING GRADUALLY WORSE. TOOK IT TO THE DEALER WHO REPLACED A BROKEN UPPER MOTOR MOUNT THAT WAS CONNECTED TO THE TRANSMISSION. DIDN'T HELP, ALTHOUGH IT SEEMED LIKE A GOOD GUESS AT THE TIME. IT HELPS TO KEEP FOOT FIRMLY ON BRAKE WHEN CHANGING GEAR OR HOLDING STILL, WHILE THE CAR TRIES TO LURCH FORWARD (OR BACK) WITH UNPLANNED ACCELERATION. SEEMS TO BE GETTING INCREASINGLY WORSE AND NOW I DON'T FEEL IT'S SAFE TO LET ANYONE ELSE DRIVE IT, LIKE AT VALET PARKING. TAKING IT BACK TO DEALER TOMORROW, BUT WE LET WARRANTY EXPIRE RECENTLY DARN IT. WE GET SO MANY FAKE SPAM WARRANTY-EXPIRING PHONE CALLS THAT I GOT CONFUSED AND DROPPED THE BALL. THROTTLE CONTROL MODULE MAY BE GIVING FALSE SIGNAL TO CARBURETOR, NOT SURE WHAT IT IS. *KB