NHTSA owner reports · September 18, 2026 snapshot.
Vehicle Speed Control complaints
70 reportsClear category filter47,000 miles · Mar 10, 2012
Fuel System, GasolineVehicle Speed Control
SOME MONTHS AGO, MY CAR STARTED TO OSCILLATE IN RALENTI FROM 700 TO BELOW 500 RPM, WHEN BRAKING EVEN STOPS. SOME TIMES DECELERATE SUDDENLY, FREQUENTLY SLOW RESPONSE WHEN ACCELERATE, ETC. FORD LOCAL DEALER TOLD ME THIS IS A REGULAR PROBLEM WITH THIS THROTTLE BODY ON THIS ENGINE MODELS, AND I HAVE TO REPLACE IT. I AM AWARE THIS IS…
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SOME MONTHS AGO, MY CAR STARTED TO OSCILLATE IN RALENTI FROM 700 TO BELOW 500 RPM, WHEN BRAKING EVEN STOPS. SOME TIMES DECELERATE SUDDENLY, FREQUENTLY SLOW RESPONSE WHEN ACCELERATE, ETC. FORD LOCAL DEALER TOLD ME THIS IS A REGULAR PROBLEM WITH THIS THROTTLE BODY ON THIS ENGINE MODELS, AND I HAVE TO REPLACE IT. I AM AWARE THIS IS A COMMON ISSUE ON 3.0L V6 ENGINES DUE TO I HAVE A FRIEND WITH A MONTEGO 2005 WITH SAME PROBLEMS. SO FAR, NO FORD COMPANY RECALL WAS ADVISED. I DO NOT AGREE INTO REPLACE THIS PART, SHOULD BE FORD RESPONSIBILITY. *TR
NHTSA ODI #10451070
58,000 miles · Feb 27, 2012
Power TrainVehicle Speed Control
TL* THE CONTACT OWNS A 2007 FORD FIVE HUNDRED. THE CONTACT STATED THAT THE VEHICLE EXHIBITED SEVERAL INSTANCES OF UNINTENDED ACCELERATION. THE CONTACT STATED THAT THE FAILURE OCCURRED WHEN THE VEHICLE WAS PLACED INTO DRIVE OR REVERSE AND ALSO WHEN THE AIR CONDITIONER WAS ACTIVATED. THE VEHICLE HAD NOT BEEN INSPECTED OR REPAIRED.…
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TL* THE CONTACT OWNS A 2007 FORD FIVE HUNDRED. THE CONTACT STATED THAT THE VEHICLE EXHIBITED SEVERAL INSTANCES OF UNINTENDED ACCELERATION. THE CONTACT STATED THAT THE FAILURE OCCURRED WHEN THE VEHICLE WAS PLACED INTO DRIVE OR REVERSE AND ALSO WHEN THE AIR CONDITIONER WAS ACTIVATED. THE VEHICLE HAD NOT BEEN INSPECTED OR REPAIRED. THE FAILURE MILEAGE WAS UNKNOWN, BUT THE CURRENT MILEAGE WAS 60,000. UPDATED 03/16/12 *BF THE CONSUMER STATED THE VEHICLE LUNGED FORWARD WHEN HE SHIFTED THE GEAR FROM PARK TO DRIVE OR FROM PARK TO REVERSE. IT CAUSED A LOUD BANGING NOISE IN THE TRANSMISSION. UPDATED 05/10/12
NHTSA ODI #10449403
60,000 miles · Feb 6, 2012
Vehicle Speed Control
TL* THE CONTACT OWNS A 2007 FORD FIVE HUNDRED. WHILE DRIVING APPROXIMATELY 25 MPH, THE BRAKE PEDAL WAS ENGAGED AND THE VEHICLE BEGAN TO ACCELERATE ABNORMALLY. THE VEHICLE EVENTUALLY CAME TO A STOP AFTER THE SECOND ATTEMPT. THE FAILURE OCCURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSIS. THE TECHN…
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TL* THE CONTACT OWNS A 2007 FORD FIVE HUNDRED. WHILE DRIVING APPROXIMATELY 25 MPH, THE BRAKE PEDAL WAS ENGAGED AND THE VEHICLE BEGAN TO ACCELERATE ABNORMALLY. THE VEHICLE EVENTUALLY CAME TO A STOP AFTER THE SECOND ATTEMPT. THE FAILURE OCCURRED INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR DIAGNOSIS. THE TECHNICIAN INFORMED THE THROTTLE BODY WOULD NEED TO BE REPLACED. THE VEHICLE WAS CURRENTLY BEING REPAIRED. THE MANUFACTURER HAD NOT BEEN NOTIFIED OF THE MALFUNCTION. THE APPROXIMATE FAILURE MILEAGE WAS 60,000. THE VIN WAS UNAVAILABLE.
NHTSA ODI #10446866
84,000 miles · Dec 14, 2011
Engine And Engine CoolingVehicle Speed Control
AT A STOPLIGHT WITH THE BRAKE ON THE ENGINE REVVED UP AND THE CAR JUMPED FORWARD ABOUT 20 FEET BEFORE I COULD STOP IT. AT THE NEXT LIGHT THE SAME THING HAPPENED. AT MY FINAL DESTINATION APPROXIMATELY 2 MILES AWAY MY SON (WHO WAS WITH ME THE WHOLE TIME = I WAS TAKING HIM BACK TO COLLEGE) TOLD ME TO LET THE CAR RUN TO SEE IF IT …
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AT A STOPLIGHT WITH THE BRAKE ON THE ENGINE REVVED UP AND THE CAR JUMPED FORWARD ABOUT 20 FEET BEFORE I COULD STOP IT. AT THE NEXT LIGHT THE SAME THING HAPPENED. AT MY FINAL DESTINATION APPROXIMATELY 2 MILES AWAY MY SON (WHO WAS WITH ME THE WHOLE TIME = I WAS TAKING HIM BACK TO COLLEGE) TOLD ME TO LET THE CAR RUN TO SEE IF IT WOULD DO IT AGAIN. WITH THE CAR IN DRIVE AND MY FOOT ON THE BRAKE (HARD) IT REVVED UP 2 MORE TIMES IN LESS THAN 2 MINUTES TO AT LEAST 1500 RPM AND WAS VERY DIFFICULT TO HOLD BACK. I TOOK IT IN TO THE DEALER THE NEXT DAY AND THEY REPLACED THE THROTTLE BODY AT A COST OF $800. AFTER CALLING FORD AND REPORTING THE SITUATION THEY REFUSED TO DOCUMENT THIS OR MAKE A CASE NUMBER UNTIL I TOLD THEM I KNEW THERE WAS A TECHNICAL BULLETIN ON THIS ACCORDING TO THE DEALER. THEY GAVE ME A CASE NUMBER [XXX] BUT WERE RUDE TO ME AND COULD NOT ANSWER IF THE REPLACEMENT PART ADDRESSED THE ISSUE AND HAS BEEN FIXED. I DO NOT KNOW IF IT WILL HAPPEN IN THE NEXT MILE, NEXT 100,000 MILES, OR NEVER AGAIN IF THEY WILL NOT SAY IF REPLACEMENT PARTS HAVE CORRECTED A PROBLEM. IF A CAR OR PEDESTRIAN WERE IN FRONT OF ME WHEN THIS HAPPENED I WOULD HAVE HAD AN ACCIDENT WITHOUT DOUBT. THIS CAR HAS A SAFETY PROBLEM AND THE INCIDENT HAPPENED ON NOV. 27, 2011. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10439966
67,000 miles · Oct 22, 2011
Engine And Engine CoolingFuel System, GasolineVehicle Speed ControlCrash
FORD FIVE HUNDRED STARTED LURCHING OR LUNGING WHEN PLACED IN GEAR. FROM A PARKED POSITION.. THE CAR LURCHED BACK INTO THE WALL OF THE CARPORT CRUSHING THE BACK BUMPER. ON ANOTHER OCCASION THE CAR LURCHED WHEN THE DOOR WAS OPEN AND KNOCKED INTO THE CARPORT POST. VERY DANGEROUS. *TR
NHTSA ODI #10432422
50,458 miles · Sep 26, 2011
Fuel System, GasolineVehicle Speed Control
DEFECTIVE THROTTLE BODY CAUSING "LUNGING ISSUES" ALMOST HAD THREE ACCIDENTS, JUST FROM THE LUNGING. ONCE I LET OFF THE GAS PEDAL THE CAR WOULD TURN OFF, DEALER ADVISED THAT IT DUE TO A DEFECTIVE THROTTLE BODY THAT THEY WILL REPLACE COSTING ME $900. *TR
NHTSA ODI #10427518
35,000 miles · Sep 25, 2011
Engine And Engine CoolingVehicle Speed Control
THIS CAR HAS LUNGED FORWARD AND BACKWARD ALMOST CAUSING SEVERAL ACCIDENTS. DEALERSHIP SAY THEY DON'T KNOW WHAT IS CAUSING IT. WARRANTY IS WORTHLESS. AIR CONDITIONER WENT OUT WHEN TEMP'S WERE OVER 105 DEGREES. OVER $1000 TO REPAIR. *TR
NHTSA ODI #10427128
139,124 miles · Sep 25, 2011
Power TrainVehicle Speed Control
CAR WILL "JUMP" WHEN SHIFTING INTO DRIVE OR REVERSE GEARS!! SOMETIMES THE CAR WONT IMMEDIATELY ACCELERATE WHEN APPLYING GAS. WAS TOLD MY MULTIPLE MECHANICS THAT I WAS THE THROTTLE BODY CONTROL CAUSING THIS BUT FORD WONT DO ANYTHING ABOUT THIS!! *TR
NHTSA ODI #10427092
56,000 miles · Sep 14, 2011
Engine And Engine CoolingPower TrainVehicle Speed Control
IN NOVEMBER OF 2010 MY 2007 FORD 500 BEGAN TO "LEAP" FOWARD OR BACKWARD AFTER SHIFTING FROM PARK TO REVERSE OR DRIVE. THIS ACTION HAS CONTINUED FOR THE FOLLOWING MONTHS. IT SEEMS TO BE HAPPENING MORE AND MORE OFTEN. IN MAY OF 2011 IT "LUNGED" WHEN I WAS BACKING OUT OF MY DRIVEWAY CAUSING DAMAGE TO BOTH MY VEHICLE AND MY HUSBA…
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IN NOVEMBER OF 2010 MY 2007 FORD 500 BEGAN TO "LEAP" FOWARD OR BACKWARD AFTER SHIFTING FROM PARK TO REVERSE OR DRIVE. THIS ACTION HAS CONTINUED FOR THE FOLLOWING MONTHS. IT SEEMS TO BE HAPPENING MORE AND MORE OFTEN. IN MAY OF 2011 IT "LUNGED" WHEN I WAS BACKING OUT OF MY DRIVEWAY CAUSING DAMAGE TO BOTH MY VEHICLE AND MY HUSBANDS WHO WAS PARKED NEAR ME. I TOOK IT TO THE DEALERSHIP TODAY AFTER IT "LUNGED" IN A PARKING LOT LAST WEEK ALMOST HITTING A CHILD WALKING BY. I ASSUMED IT WAS THE TRANSMISSION. HOWEVER, I AM TOLD IT'S A BAD ELECTRONIC THROTTLE BODY AND IS NOT COVERED UNDER THE POWERTRAIN WARRANTY. I AM TOLD IT WILL GO OUT SOMETIME, THERE ISN'T ANY WAY OF KNOWING WHEN BUT IT WILL GO INTO "FAIL SAFE MODE". AFTER SEARCHING ONLINE I SEE FORD HAD A RECALL ON THIS PART THAT INCLUDED MODELS OLDER THEN MINE. THE PROBLEM ISN'T FIXED AS MANY FORD OWNERS ARE EXPERIENCING THE SAME PROBLEM. *KB
NHTSA ODI #10425447
85,000 miles · Sep 13, 2011
Power TrainVehicle Speed Control
WHEN CAR IS IN EITHER DRIVE OR REVERSE AND THE CAR IS IDLING THEN THE CAR WILL LUNG AND ALMOST CAUSED NUMEROUS ACCIDENTS. *TR
NHTSA ODI #10425253
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
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