NHTSA Complaint #10469115 — 2011 FORD F-150

AT ROUGHLY 800 MILES I ATTEMPTED TO PASS ON A RAINY AFTERNOON AND WHILE APPLYING ENOUGH LOAD TO PASS THE TRUCK STARTED TO SURGE/MISFIRE SEVERELY AND THE CHECK ENGINE LIGHT STARTED TO FLASH. DROVE THE TRUCK ABOUT 2 MILES IN THIS DERATED CONDITION UNTIL I REACHED MY DESTINATION. TURNED THE IGNITION TO OFF AND THEN CYCLED THE IGNITION BACK ON AND THE CHECK ENGINE LIGHT WENT OUT AND THE UNIT RAN CORRECTLY AGAIN. TOOK UNIT TO THE DEALER AND THE DIAGNOSTIC TOOL ONCE PLUGGED INTO THE DATA PORT DID NOT REVEAL ANY FAULT CODES AND NO CODES WERE STORED. THE DEALER COULD NOT DUPLICATE THE ISSUE AND NOTHING WAS DONE TO RESOLVE THE ISSUE. THIS HAS HAPPENED VERY INTERMITTENTLY ABOUT 7 TIMES TOTAL NOW ALWAYS WHEN TRYING TO APPLY THROTTLE IN EITHER HUMID OR RAINY WEATHER CONDITIONS. SEVERAL SOFTWARE UPDATES HAVE BEEN PERFORMED TO THE TRUCK FOR SOME ISSUE WITH THE TRANS, BUT THIS INTERMITTENT MISFIRE UNDER LIGHT LOAD STILL OCCURS. THIS HAPPENED MOST RECENTLY AT ROUGHLY 23100 MILES ON THE ODOMETER WHILE DRIVING UP AN INCLINE AT ROUGHLY 65 MPH AND APPLYING LIGHT LOAD TO TRY AND CLIMB THE HILL. HAD TO LET OFF THE THROTTLE AND TRY TO APPLY THE THROTTLE AGAIN TO ACCELERATE. THIS CONTINUED FOR ABOUT 3 THROTTLE APPLICATION ATTEMPTS THAN FINALLY SMOOTHED OUT WITHOUT ILLUMINATING THE CEL THIS TIME. IM SURE THE ISSUE WILL CONTINUE UNTIL FORD COMES OUT WITH A REAL RESOLVE AND NOT BAND AID REPAIRS. *TR