NHTSA owner reports · September 18, 2026 snapshot.
Fuel System, Gasoline complaints
21 reportsClear category filter20,000 miles · Jun 29, 2011
Fuel System, Gasoline
WHEN THE CAR WAS STILL UNDER THE 36 MONTH 36,000 WARRANTY IT BEGAN LUNGING FORWARD OR BACKWARD WHEN YOU FIRST STARTED TO ACCELERATE. NOTICEABLY WHEN FIRST TAKING OUT OF PARK EITHER GOING FORWARD OR REVERSE, OR WHEN GOING THROUGH DRIVE UP WINDOWS. (IE FAST-FOOD OR BANK). INTERMITTENTLY AT FIRST AND THEN MORE AND MORE UNTIL IT WA…
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WHEN THE CAR WAS STILL UNDER THE 36 MONTH 36,000 WARRANTY IT BEGAN LUNGING FORWARD OR BACKWARD WHEN YOU FIRST STARTED TO ACCELERATE. NOTICEABLY WHEN FIRST TAKING OUT OF PARK EITHER GOING FORWARD OR REVERSE, OR WHEN GOING THROUGH DRIVE UP WINDOWS. (IE FAST-FOOD OR BANK). INTERMITTENTLY AT FIRST AND THEN MORE AND MORE UNTIL IT WAS DOING IT EVERY TIME, AND AT A GREATER ACCELERATION. THE FORD DEALER DIAGNOSED IT AS THE THROTTLE BODY. THEY KNEW RIGHT OFF THE BAT, IT EVIDENTLY WAS A COMMON PROBLEM. WE HAD TO WAIT OVER A MONTH FOR THEM TO FINALLY GET ONE IN BECAUSE THEY WERE BACK-ORDERED . EVIDENTLY LOTS OF PEOPLE NEEDED THEM! WE WERE ADVISED NOT TO USE OUR CAR DURING THIS TIME BECAUSE OF THE SAFETY ISSUE. OF COURSE THE DEALER DID NOT WANT TO PROVIDE A RENTAL CAR EVEN THOUGH IT WAS UNDER THE NEW CAR WARRANTY, BUT AFTER MAKING COMPLAINTS TO FORD MOTOR CO FOR THREE WEEKS WHILE THE PART REPEATEDLY DID NOT COME IN, WE WERE GIVEN A RENTAL UNTIL IT WAS FINALLY REPLACED 11-2009. NOW IT IS DOING IT AGAIN. I CALLED THE DEALER AND THEY SAID THE NEW CAR WARRANTY IS UP AND THEY WILL NOT WARRANTY THEIR REPAIR BECAUSE IT HAS BEEN OVER 12 MONTHS. THE CAR NOW HAS 41,000 MILES AND THIS IS THE SECOND TIME THIS PROBLEM HAS OCCURRED. I SHOULD HAVE REPORTED IT THE FIRST TIME BUT FORD SEEMED TO BE TAKING RESPONSIBILITY AND THE WAY THEY TALKED TO ME I THOUGHT THERE WAS GOING TO BE A SAFETY RECALL. IT IS A TERRIBLE SAFETY HAZARD. NOW THAT THE NEW CAR WARRANTY IS UP THEIR MEMORIES HAVE GOTTEN BAD. THE LOCAL DEALER (KEN GARFF FORD) TOLD ME THEY ARE UNAWARE OF THIS BEING A PROBLEM WITH THE 2007 FIVE HUNDRED. WHICH IS TOTAL BULL BECAUSE THEY SURE WERE AWARE OF IT THE FIRST TIME A YEAR AND A HALF AGO. I AM REALLY DISGUSTED WITH MY DEALERSHIP. I AM WAITING TO SEE WHAT FORD MOTOR COMPANIES RESPONSE WILL BE. EITHER WAY I FELT IT WAS IMPORTANT TO LET OTHERS KNOW OF THIS DEFECT. I WONDER HOW MANY FENDER BENDERS HAVE BEEN CAUSED BY THIS. I AM AFRAID A PEDESTRIAN COULD BE HIT AND SERIOUSLY INJURED. *TR
NHTSA ODI #10409403
21,000 miles · Jun 21, 2011
Fuel System, GasolinePower TrainVehicle Speed ControlCrash
PURCHASED A NEW FORD FIVE HUNDRED IN 2007. HAVE KEPT UP WITH ALL REGULAR MAINTENANCE. AFTER PUTTING ABOUT 20,000 MILES ON THE VEHICLE, I STARTED HAVING A PROBLEM WITH SUDDEN ACCELERATION. I WOULD COME TO A STOP AT AN INTERSECTION, MAILBOX, OR DRIVE-THRU AND LET MY FOOT OFF THE BRAKES AND THE CAR WOULD "JUMP" -- ACCELERATE ON …
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PURCHASED A NEW FORD FIVE HUNDRED IN 2007. HAVE KEPT UP WITH ALL REGULAR MAINTENANCE. AFTER PUTTING ABOUT 20,000 MILES ON THE VEHICLE, I STARTED HAVING A PROBLEM WITH SUDDEN ACCELERATION. I WOULD COME TO A STOP AT AN INTERSECTION, MAILBOX, OR DRIVE-THRU AND LET MY FOOT OFF THE BRAKES AND THE CAR WOULD "JUMP" -- ACCELERATE ON ITS OWN. MY FOOT WOULD NOT EVEN BE ON THE GAS PEDAL. I TOOK IT TO THE FORD DEALERSHIP AND WAS TOLD THAT THE TRANSMISSION HAD TO BE "REPROGRAMMED". I SPECIFICALLY ASKED COULD IT BE A PROBLEM WITH FUEL SYSTEM AND WAS TOLD NO. I HAD THE WORK COMPLETED BUT THE PROBLEM PERSISTS TO THIS DAY. I HAVE HAD SEVERAL NEAR MISSES WITH REAR END COLLISIONS. FINALLY AS I WAS ENTERING A PARKING SPACE, THE CAR ACCELERATED ON ITS OWN AND HIT A POST IN FRONT OF THE PARKING SPACE.
NHTSA ODI #10409450
90,000 miles · Jun 16, 2011
Fuel System, GasolineVehicle Speed Control
CAR LUNGES AND SURGES WHEN COMING TO A STOP AND IDLES ERRATICALLY SOMETIMES. IT STARTED RANDOMLY BUT IS NOW STARTING TO DO IT EVERY TIME WE DRIVE THE CAR. *TR
NHTSA ODI #10407132
56,000 miles · Jun 4, 2011
Fuel System, GasolinePower Train
CAR WAS JERKING ON ACCELERATION, WAS TOLD THERE WERE NO CODES EVEN THOUGH THE LIGHT WAS FLASHING IT IS STILL DOING IT ONLY WORSE THE LIGHT IS ON SOLID NOW AND THE CAR IS NOW OUT OF WARRANTY. IT WOULD ALSO JERK WHEN TAKEN OUT OF PARK OR WHEN IN TRAFFIC SITTING IDLE, ONCE I THOUGHT I WAS REAR ENDED. I TOOK IT TO THE MECHANICS AND …
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CAR WAS JERKING ON ACCELERATION, WAS TOLD THERE WERE NO CODES EVEN THOUGH THE LIGHT WAS FLASHING IT IS STILL DOING IT ONLY WORSE THE LIGHT IS ON SOLID NOW AND THE CAR IS NOW OUT OF WARRANTY. IT WOULD ALSO JERK WHEN TAKEN OUT OF PARK OR WHEN IN TRAFFIC SITTING IDLE, ONCE I THOUGHT I WAS REAR ENDED. I TOOK IT TO THE MECHANICS AND THEY TOLD ME THIS IS 'NORMAL' BEHAVIOR AND THERE WAS NOTHING WRONG WITH THE CAR. IT WILL NOT EVEN STAY RUNNING NOW WHEN WARM AND IT DIES. *TR
NHTSA ODI #10404402
55,048 miles · Nov 29, 2010
Fuel System, Gasoline
I HAVE A 2007 FORD FIVE HUNDRED THAT HAD LESS THAN 60,000 MILES WHEN THE THROTTLE BODY BEGAN TO FAIL. THIS CAUSES THE CAR TO JERK FORWARD AND BACKWARD AS I AM TAKING MY FOOT OFF THE BRAKE. I HAVE ALMOST HIT A PEDESTRIAN ONCE AND OTHER VEHICLES ON MORE THAN ONE OCCASION. I TOOK THE CAR TO THE FORD DEALERSHIP, WAS TOLD IT WAS T…
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I HAVE A 2007 FORD FIVE HUNDRED THAT HAD LESS THAN 60,000 MILES WHEN THE THROTTLE BODY BEGAN TO FAIL. THIS CAUSES THE CAR TO JERK FORWARD AND BACKWARD AS I AM TAKING MY FOOT OFF THE BRAKE. I HAVE ALMOST HIT A PEDESTRIAN ONCE AND OTHER VEHICLES ON MORE THAN ONE OCCASION. I TOOK THE CAR TO THE FORD DEALERSHIP, WAS TOLD IT WAS THE THROTTLE BODY AND THERE WAS NOT A RECALL EVEN THOUGH THIS WAS VERY PREVALENT IN THE FORD FREESTYLES. I WAS ALSO TOLD IT WOULD COST AT LEAST $700.00 TO FIX. THEY DID CLEAN THE THROTTLE BODY FOR WHICH I PAID $70.00. THAT WAS ABOUT 2 MONTHS AGO AND IT IS JERKING AGAIN. THIS IS DANGEROUS AS I CANNOT KEEP MY CAR FROM JERKING NO MATTER HOW SLOWLY I MOVE MY FOOT FROM THE BRAKE OR NOT COMPLETELY. *TR
NHTSA ODI #10368116
34,000 miles · Oct 1, 2010
Fuel System, GasolineVehicle Speed Control
I OWN A FORD 500 2007. THE ENGINE SEEMS TO REV UP WITH OUT PRESSING THE GAS PEDAL. IF YOU ARE AT A STOP SIGN AND RELEASE THE BRAKE THE CAR WILL LUNGE FORWARD ON ITS OWN. I SPOKE TO A MECHANIC ABOUT THIS PROBLEM AND HE HAS ENCOUNTERED IT BEFORE WITH OTHER 500'S. HE TOLD ME ITS THE THROTTLE BODY. HE TOLD ME WHEN HE ORDERS THEM…
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I OWN A FORD 500 2007. THE ENGINE SEEMS TO REV UP WITH OUT PRESSING THE GAS PEDAL. IF YOU ARE AT A STOP SIGN AND RELEASE THE BRAKE THE CAR WILL LUNGE FORWARD ON ITS OWN. I SPOKE TO A MECHANIC ABOUT THIS PROBLEM AND HE HAS ENCOUNTERED IT BEFORE WITH OTHER 500'S. HE TOLD ME ITS THE THROTTLE BODY. HE TOLD ME WHEN HE ORDERS THEM THEY ARE ON BACK ORDER. *TR
NHTSA ODI #10358588
37,281 miles · Sep 17, 2010
Fuel System, GasolineVehicle Speed Control
THE THROTTLE BODY ON OUR 2007 FORD 500 STUCK CLOSED CAUSING ENGINE TO STALL. THE THROTTLE BODY HAD TO BE REPLACED. FORTUNATELY THIS HAPPENED ON A 2 LANE ROAD BUT MY WIFE HAD JUST GOT OFF A HIGH SPEED INTERSTATE HIGHWAY. FAILURE CAUSED RAPID DECELERATION OF THE VEHICLE LEAVING HER STRANDED IN THE TRAFFIC LANE. THIS WOULD PROB…
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THE THROTTLE BODY ON OUR 2007 FORD 500 STUCK CLOSED CAUSING ENGINE TO STALL. THE THROTTLE BODY HAD TO BE REPLACED. FORTUNATELY THIS HAPPENED ON A 2 LANE ROAD BUT MY WIFE HAD JUST GOT OFF A HIGH SPEED INTERSTATE HIGHWAY. FAILURE CAUSED RAPID DECELERATION OF THE VEHICLE LEAVING HER STRANDED IN THE TRAFFIC LANE. THIS WOULD PROBABLY HAVE RESULTED IN AN ACCIDENT IF THIS WOULD HAVE HAPPENED ON THE INTERSTATE. THE CAR HAS AROUND 37,000 MILES ON IT. *TR
NHTSA ODI #10356094
77,000 miles · Jul 5, 2010
Fuel System, GasolineVehicle Speed Control
SUDDEN ACCELERATION IN BOTH FORWARD AND REVERSE. HAS OCCURRED ON FOUR (4) SEPARATE OCCASIONS. FORD DEALER CAN FIND NO CODES, THEREFORE REFUSES TO REPAIR. AS WITH MOST SUDDEN ACCELERATION PROBLEMS, I SUSPECT THE THROTTLE BODY IS DEFECTIVE. THIS IS A SERIOUS SAFETY ISSUE! *TR
NHTSA ODI #10341443
62,000 miles · Jun 14, 2010
Fuel System, GasolineVehicle Speed Control
I OWN A 2007 FORD 500 & HAVE RECENTLY BEEN HAVING A ISSUE WITH SURGING WHEN I HAVE MY CAR IN THE PARK POSITION & PUT IT IN DRIVE. THEN IT STARTED SURGING WHEN I AM IN REVERSE NOW. I SPOKE TO MY LOCAL FORD DEALERSHIP WHEN I HAD MY OIL CHANGED & THEY ADVISED THAT I HAD TO HAVE A UPDATE THAT COST $81.00 TO FIX THE PROBLEM. THEY KNE…
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I OWN A 2007 FORD 500 & HAVE RECENTLY BEEN HAVING A ISSUE WITH SURGING WHEN I HAVE MY CAR IN THE PARK POSITION & PUT IT IN DRIVE. THEN IT STARTED SURGING WHEN I AM IN REVERSE NOW. I SPOKE TO MY LOCAL FORD DEALERSHIP WHEN I HAD MY OIL CHANGED & THEY ADVISED THAT I HAD TO HAVE A UPDATE THAT COST $81.00 TO FIX THE PROBLEM. THEY KNEW EXACTLY ALL ABOUT THE PROBLEM WHEN I STARTED EXPLAINING IT TO THEM. IT TAKES ABOUT 1 HOUR TO FIX THE PROBLEM. I AM GOING NEXT WEEK TO HAVE IT DONE. *TR
NHTSA ODI #10336315
51,500 miles · Nov 9, 2009
Fuel System, Gasoline
2007 FORD FIVE HUNDRED SURGES FORWARD IN PARKING LOTS, STOP LIGHTS, GOING FROM PARK TO DRIVE OR PARK TO REVERSE. ALMOST HITTING CARS, PEDESTRIANS WHEN IT SURGES BACKWARD AND FORWARD. *TR
NHTSA ODI #10291423
NHTSA investigations
1PE11018 · Idle Instability
Opened May 11, 2011 · Closed Feb 7, 2013
Status: closed (inferred from source dates) · Vehicle Speed Control
On November 29, 2012, Ford Motor Company (Ford) initiated Customer Satisfaction Program 12N03 to extend warranty coverage terms for repair of engine idle RPM surge caused by throttle body deposits in all model year (MY) 2005 through 2007 Ford Freestyle, Five Hundred and Mercury Montego vehicles.The program extends the coverage for up to 10 years of service or 150,000 miles from the warranty start date of the vehicle (all vehicles are eligible for the program through May 31, 2013, regardless of mileage).Dealers will repair vehicles exhibiting the condition by removing and cleaning the throttle body and reprogramming the PCM with software containing an updated idle speed control strategy.According to Ford, some of the affected vehicles may experience momentary, intermittent engine idle RPM surge (idle flare) when stopped or during low speed driving maneuvers such as in a parking lot or driveway.Unstable idle speed control (dips and flares) around the target engine speed (700 rpm) can occur in vehicles with deposit build-up in the throttle body when the system adjusts engine speed in response to changes in engine load, typically from power steering application or air-conditioner compressor cycling.Idle speed control logic is only active at vehicle speeds below 3.5 mph and when the accelerator pedal is not applied.Ford testing of a vehicle with a worst case throttle body measured a maximum idle flare of 1360 RPM lasting approximately 1 second, which Ford indicated was consistent with system design to limit vehicle speed and acceleration in idle control mode.Ford indicated that the test vehicle was held in place with normal brake effort and that vehicle speed remained under 4 mph without the brake pedal applied.In addition to throttle body deposit accumulation, symptoms associated with the condition may include Check Engine lamp illumination and diagnostic trouble codes (DTCs) P0505, P0506 or P061B.Ford attributed the surge condition to changes in idle air flow resulting from the progressive buildup of deposits in the throttle body from normal Positive Crankcase Ventilation (PCV) system operation.This condition was not adequately compensated for in the original Powertrain Control Module (PCM) calibration.Ford issued a technical service bulletin on August 15, 2011 (TSB 11-8-5), releasing an updated powertrain control calibration for vehicles with CVT transmissions.On October 19, 2011, Ford issued a second bulletin (TSB 11-10-21) superseding TSB 11-8-5 and including updated powertrain control calibration for vehicles with 6-speed transmissions.Prior to Ford issuing the TSB?s, owner?s experiencing the alleged defect either received no repairs, if dealers could not duplicate the condition, or had the throttle body cleaned or replaced, which only provided temporary correction until the throttle deposit build-up returned.Ford?s revised powertrain calibrations appear to be effective remedies for the idle instability caused by build-up of throttle body deposits.However, even after the TSB?s were released, many owners experiencing the condition continued to have difficulty with proper diagnosis and repair as dealers were often either unable to duplicate the condition or were unfamiliar with the new repair procedures.Ford's new program addresses those concerns.NHTSA's testing and complaint analysis indicate that the idle speed control issue in the subject vehicles can only occur at very low speeds, are very brief events, are easily controlled by moderate brake pedal forces and result in minor increases in vehicle speed even with no braking.This investigation is closed.The closing of this in