NHTSA Complaint #11316460 — 2011 FORD F-150

UPON HARD ACCELERATION, WHILE TRYING TO PASS A VEHICLE, THE VEHICLE SHUDDERS, SHAKES AND STALLS. THE MPH GOES DOWN AND DOWN EVEN IF PRESSING THE GAS PEDAL. I MUST PULL OVER, PUT THE TRUCK IN PARK AND TURN OFF THE TRUCK. AVOIDING A HEAD ON COLLISION IS DIFFICULT WHEN THIS HAPPENS. AFTER RESTARTING THE TRUCK, THE ENGINE LIGHT THEN COMES ON. THIS HAS HAPPENED ON FOUR DIFFERENT OCCASIONS. THE GAS MILEAGE IS NOW INACCURATE AND IT APPEARS THAT THE "MILES TO EMPTY" DOES NOT MATCH THE MILES DRIVEN. RIVERTOWN FORD (COLUMBUS, GA) CLAIMS TO HAVE NO KNOWLEDGE OF THIS TYPE OF SITUATION. SPARK PLUGS & BOOTS WERE SAID TO BE THE CAUSE THE FIRST TIME ON 6/2/18. THE 2ND TIME 12/12/18, THE "INTERCOOLER SHIELD WAS INSTALLED & PCM REPROGRAMMED" -- I WAS PROMISED THIS WAS THE 100% FIX. AS OF 2/28/20, RIVERTOWN ADVISES THEIR FIX IS OUT OF WARRANTY AND NOW REQUIRES $650 FOR "ENGINE TEAR DOWN REQUIRED TO DETERMINE POINT OF FAILURE".