NHTSA Complaint #11276907 — 2011 FORD MUSTANG

2011 FORD MUSTANG 3.7L V6 CONVERTIBLE, PREMIUM, AUTOMATIC TRANSMISSION THROTTLE BODY FAILURE (PART # AT4Z-9E926-B) WHILE DRIVING, THE CAR SUDDENLY DECELERATES, THE DASHBOARD 'WRENCH LIGHT' COMES ON, THE FRONT END OF THE CAR RUMBLES AND SHAKES, AND THE CAR WILL NOT ACCELERATE, FORCING ME TO PULL OFF THE ROAD. THIS HAPPENS AT MODERATE SPEED ON LOCAL ROADS AND AT HIGHWAY SPEED. IF I PULL OFF THE ROAD, TURN THE CAR OFF, WAIT A FEW MINUTES, AND THEN RESTART, IT USUALLY RUNS NORMALLY. ON ONE OCCASION, IT DID NOT. IT DECELERATED AND THEN STALLED COMPLETELY IN THE MIDDLE OF A FOUR WAY INTERSECTION WHILE I WAS ON THE WAY HOME FROM THE DEALERSHIP AFTER BEING TOLD THERE 'WAS NO CODE,' SO THEY WEREN'T ABLE TO DO ANYTHING ABOUT THE PROBLEM. I COASTED THROUGH THE INTERSECTION, PULLED OVER, TURNED THE CAR OFF AND THEN RESTARTED IT, AFTER WHICH IT RAN FOR ABOUT A MINUTE, SHOOK VIOLENTLY, AND THEN STALLED. EVERY INDICATOR ON THE DASHBOARD WAS ILLUMINATED. IT SEEMED AS IF THE CAR WAS CHOKING. I REPEATED THIS OVER AND OVER, CREEPING DOWN THE SHOULDER, BACK TO THE DEALERSHIP. IN MY CASE, THIS PART HAS BEEN REPLACED THREE TIMES IN THE LAST FIVE YEARS, MOST RECENTLY ON OCT 29, 2019. ACCORDING TO MY SERVICE RECORDS, PART # AT4Z-9E926-B WAS USED FOR EACH REPLACEMENT. APPARENTLY, FORD REPLACES A DEFECTIVE PART WITH ANOTHER DEFECTIVE PART. THIS PART SHOULD BE RECALLED AND REPLACED WITH A DIFFERENT OR IMPROVED PART THAT WILL FIX THE PROBLEM ONCE AND FOR ALL. 2015: CODE P2135, REPLACED THROTTLE BODY ASSEMBLY 2016: SENT AWAY FROM DEALERSHIP, NO FAULT CODES, UNABLE TO VERIFY 2016: RETURNED TO DEALERSHIP SHORTLY AFTER I WAS SENT AWAY; CODE P0315, REPLACED THROTTLE BODY ASSEMBLY 2016: CUSTOMER SATISFACTION PROGRAM 16B23, REIMBURSED FOR THROTTLE BODY REPLACEMENT 2019: NO FAULT CODE NOTED ON SERVICE PAPERWORK, REPLACED THROTTLE BODY ASSEMBLY