NHTSA owner reports · September 18, 2026 snapshot.
Power Train complaints
104 reportsClear category filter45,000 miles · Feb 2, 2013
EngineFuel/propulsion SystemPower Train
VEHICLE SURGES FOR NO PARTICULAR REASON AND SHOWS. A CHECK ENGINE LIGHT ON (WRENCH). CONTROL OF ACCELERATION IS MIXED AND VEHICLE EITHER LURCHES OR FEELS AS THOUGH TRANSMISSION IS IN NEUTRAL AND RPM'S INCREASE WITHOUT ACCELERATION BY DRIVER. HAVE A SCHEDULED SERVICE CALL WITH FORD AND HAVE BEEN ISSUED A NOTICE FROM FORD THAT THI…
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VEHICLE SURGES FOR NO PARTICULAR REASON AND SHOWS. A CHECK ENGINE LIGHT ON (WRENCH). CONTROL OF ACCELERATION IS MIXED AND VEHICLE EITHER LURCHES OR FEELS AS THOUGH TRANSMISSION IS IN NEUTRAL AND RPM'S INCREASE WITHOUT ACCELERATION BY DRIVER. HAVE A SCHEDULED SERVICE CALL WITH FORD AND HAVE BEEN ISSUED A NOTICE FROM FORD THAT THIS ISSUE WILL BE COVERED. *TR
NHTSA ODI #10496195
78,445 miles · Jan 2, 2013
Electrical SystemPower Train
WHEN DRIVING THE CAR AND SLOWING DOWN THE CVT TRANSMISSION SURGES AHEAD AND THE CAR GOES INTO SAFE MODE ONLY ALLOWING IT TO GO 20 MPH WHEN DRIVING IN TRAFFIC. MANY NEAR MISSES ON ACCIDENTS. HAVE HAD CAR INTO DEALER 3 TIMES AND STILL UNABLE TO DIAGNOSE PROBLEM. MAINTENANCE SERVICE WAS COMPLETED ON TRANSMISSION AT 60,000 MILES …
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WHEN DRIVING THE CAR AND SLOWING DOWN THE CVT TRANSMISSION SURGES AHEAD AND THE CAR GOES INTO SAFE MODE ONLY ALLOWING IT TO GO 20 MPH WHEN DRIVING IN TRAFFIC. MANY NEAR MISSES ON ACCIDENTS. HAVE HAD CAR INTO DEALER 3 TIMES AND STILL UNABLE TO DIAGNOSE PROBLEM. MAINTENANCE SERVICE WAS COMPLETED ON TRANSMISSION AT 60,000 MILES PER RECOMMENDATIONS. FORD MOTOR COMPANY STATED IN A PHONE CONVERSATION THERE ARE KNOWN TRANSMISSION PROBLEMS WITH THIS CAR. DEALER STATES IT IS THE COMPUTER CAUSING THIS UNSURE WHO IS RIGHT. A TRANSMISSION SENSOR IS BEING REPLACED TO THE TUNE OF $2000. PLEASE HELP IF THIS IS A KNOWN PROBLEM. JUST HAD A PART IN THE TRANSMISSION REPLACED BECAUSE THERE WAS A RECALL ON IT. *TR
NHTSA ODI #10490775
63,222 miles · Sep 16, 2012
Power TrainVehicle Speed Control
IN MULTIPLE INCIDENTS, ON HOT SUMMER DAYS, THE CAR HAS SUDDENLY ACCELERATED (WITH NO FOOT ON THE ACCELERATOR) WHEN BACKING OUT OF PARKING SPACES AND SOMETIMES WHEN PUT INTO DRIVE RIGHT AFTER THE SUDDEN ACCELERATION IN REVERSE. IT HAS REQUIRED RAPID, FIRM BRAKING TO PREVENT THE CAR FROM HITTING OTHER VEHICLES. ABOUT A WEEK AFTE…
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IN MULTIPLE INCIDENTS, ON HOT SUMMER DAYS, THE CAR HAS SUDDENLY ACCELERATED (WITH NO FOOT ON THE ACCELERATOR) WHEN BACKING OUT OF PARKING SPACES AND SOMETIMES WHEN PUT INTO DRIVE RIGHT AFTER THE SUDDEN ACCELERATION IN REVERSE. IT HAS REQUIRED RAPID, FIRM BRAKING TO PREVENT THE CAR FROM HITTING OTHER VEHICLES. ABOUT A WEEK AFTER THE PROBLEM STARTED WITH THIS CAR, IT STARTED TO HAPPEN OCCASIONALLY WITH MY OTHER FORD FIVE HUNDRED (A 2005 MODEL WITH A LITTLE LESS MILEAGE). A SEPARATE COMPLAINT HAS BEEN FILED ON THAT VEHICLE. RESEARCH ONLINE HAS REVEALED THAT HUNDREDS OF FORD FIVE HUNDRED OWNERS HAVE REPORTED THIS ISSUE AND THAT THE THROTTLE BODY IS THE LIKELY CULPRIT. *TR
NHTSA ODI #10475564
87,400 miles · Aug 21, 2012
Power Train
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE HESITATED TO ACCELERATE. THE ENGINE AND TRANSMISSION WARNING LIGHTS ILLUMINATED ON THE INSTRUMENT PANEL AS THE FAILURE OCCURRED. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTICS WHERE THE TECHNICIAN STATED THAT THE TRANSMISSION PUMP…
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TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. WHILE DRIVING APPROXIMATELY 45 MPH, THE VEHICLE HESITATED TO ACCELERATE. THE ENGINE AND TRANSMISSION WARNING LIGHTS ILLUMINATED ON THE INSTRUMENT PANEL AS THE FAILURE OCCURRED. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTICS WHERE THE TECHNICIAN STATED THAT THE TRANSMISSION PUMP WOULD HAVE TO BE REPLACED. AFTER THE REPAIR, THE FAILURE CONTINUED. THE VEHICLE WAS NOT FURTHER REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 87,400. UPDATED 09/19/12*LJ THE CONSUMER STATED HAS REPLACED AN O RING AND FOUR (4) THROTTLE BODIES WHICH ONLY TURNED OFF THE TRACTION CONTROL LIGHT. NONE OF THE REPAIRS RESOLVED THE ISSUE. 09/20/2012 *JS
NHTSA ODI #10471783
137,000 miles · Aug 7, 2012
Power Train
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHEN THE TRANSMISSION WAS SHIFTED INTO DRIVE, THE VEHICLE WOULD LUNGE FORWARD. THE CONTACT DID NOT TAKE THE VEHICLE TO A DEALER OR LOCAL MECHANIC. THE FAILURE MILEAGE WAS 137,000. UPDATED 09/26/12*LJ THE CONSUMER STATED THE VEHICLE WOULD LUNGE WHEN REVER…
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TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHEN THE TRANSMISSION WAS SHIFTED INTO DRIVE, THE VEHICLE WOULD LUNGE FORWARD. THE CONTACT DID NOT TAKE THE VEHICLE TO A DEALER OR LOCAL MECHANIC. THE FAILURE MILEAGE WAS 137,000. UPDATED 09/26/12*LJ THE CONSUMER STATED THE VEHICLE WOULD LUNGE WHEN REVERSING AND GOING FOWARD AT LOW SPEEDS. THE FAILURE WAS INTERMITTENT. THIS WAS AN ISSUE FOR THE LAST TWO YEARS. UPDATED 09/26/2012 *JS
NHTSA ODI #10469557
99,300 miles · Aug 5, 2012
Power Train
MY CAR HAS DONE THIS FOR A WHILE HOWEVER HAS CONTINUED TO GET WORSE. IT WILL JERK WHEN IT CHANGES GEARS. IT IS SO BAD AT TIMES IT FEELS LIKE SOMETHING IS GOING TO FALL OUT. ALONG WITH THE JERK IT WILL COMPLETELY GO OUT OF GEAR AND THE ACCELERATOR ONLY RAMS IT UP. I HAVE BEEN PASSING CARS ON THE INTERSTATE AND IT GO OUT OF GEAR, …
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MY CAR HAS DONE THIS FOR A WHILE HOWEVER HAS CONTINUED TO GET WORSE. IT WILL JERK WHEN IT CHANGES GEARS. IT IS SO BAD AT TIMES IT FEELS LIKE SOMETHING IS GOING TO FALL OUT. ALONG WITH THE JERK IT WILL COMPLETELY GO OUT OF GEAR AND THE ACCELERATOR ONLY RAMS IT UP. I HAVE BEEN PASSING CARS ON THE INTERSTATE AND IT GO OUT OF GEAR, I HAVE BEEN ON SIDE ROADS AND IT GO OUT OF GEAR AND ALL I CAN DO WHEN THAT HAPPENS IS ROLE UNTIL I CAN GET THE CAR PULLED OVER. EVENTUALLY THE CAR WILL JERK AND IT WILL GO BACK INTO GEAR. I HAVE NOT HAD A WRECK BUT HAVE COME VERY CLOSE JUST BECAUSE PEOPLE BEHIND ME AND THE CAR STALLING ALL OF A SUDDEN. GOD HAS JUST BEEN WITH US EACH TIME THIS HAS HAPPENED. I KNOW OTHER PEOPLE HAVE THIS SAME PROBLEM WITH THIS CAR. IT IS VERY EXPENSIVE TO GET FIXED AND MINE IS PARKED AS WE SPEAK BECAUSE I CANT AFFORD THE PART NOR THE LABOR. THE FORD DEALER SAYS IT IS THE VALVE BODY. IF I DRIVE IT MUCH MORE IT WILL COST DOUBLE TO GET THE TRANSMISSION ITSELF FIXED. I AM VERY UPSET DUE TO THE FACT THAT I DO REALLY LOVE THIS CAR. IT SEEMS THAT EVERYONE WHO HAS THIS VEHICLE IS HAVING THE SAME PROBLEM. THERE IS A FORUM THAT IS ON THE WEB THAT PEOPLE HAVE SHARED THEIR EXPERIENCES AND WE ALL ARE ALIKE. IT IS A SHAME THAT WE WOULD HAVE TO WAIT UNTIL SO MANY WRECKS BEFORE A RECALL ON THE TRANSMISSION IS MADE. DO WE HAVE TO WAIT UNTIL SOMEONE IS KILLED OR HURT REALLY BAD TO PROVE THAT THIS IS A TRUE PROBLEM. IF THIS MANY PEOPLE HAVE THE SAME TRANSMISSION TROUBLES CAN THEY NOT SEE SOMETHING IS WRONG. THEY DIDN'T MAKE THIS CAR FOR VERY LONG. I DON'T KNOW IF IT IS BECAUSE OF THAT AND FORD DOESN'T WANT TO FIX SOMETHING THAT WAS ONLY MADE FOR 3 YEARS. MY REQUEST IS SINCERE AND I JUST HOPE THAT FORD WILL SEE THAT YES IT IS A GREAT CAR THAT THEY MADE, HOWEVER IT IS VERY DANGEROUS AND WAITING FOR SOMEONE TO SUE BEFORE FIXING IT AFTER EVERYONE TELLING THEM ABOUT, IT IS NOT GOOD. *TR
NHTSA ODI #10469246
64,247 miles · Aug 5, 2012
Power Train
AT A REDUCED SPEED IN DRIVE AND REVERSE TRANSMISSION BECOMES ERRATIC AND UNPREDICTABLE. *TR
NHTSA ODI #10469219
65,000 miles · Aug 3, 2012
Power Train
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT THE VEHICLE ACCELERATED ABNORMALLY AFTER SHIFTED INTO GEAR. THE CONTACT ALSO CONFIRMED THAT ON A SEPARATE OCCASION, THE VEHICLE FAILED TO ACCELERATE PROPERLY AFTER THE ACCELERATOR PEDAL WAS DEPRESSED. THE VEHICLE WAS TAKEN TO THE DEALER WHO CONFIRMED THAT TH…
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TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT THE VEHICLE ACCELERATED ABNORMALLY AFTER SHIFTED INTO GEAR. THE CONTACT ALSO CONFIRMED THAT ON A SEPARATE OCCASION, THE VEHICLE FAILED TO ACCELERATE PROPERLY AFTER THE ACCELERATOR PEDAL WAS DEPRESSED. THE VEHICLE WAS TAKEN TO THE DEALER WHO CONFIRMED THAT THE TRANSMISSION NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 65,000 AND THE CURRENT MILEAGE WAS 100,000.
NHTSA ODI #10469136
71,229 miles · Jul 27, 2012
Power TrainVehicle Speed Control
TL* THE CONTACT OWNS A 2005 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE REVERSING, THE VEHICLE LUNGED BACKWARD. THE VEHICLE WAS TAKEN TO THE DEALER FOR A DIAGNOSIS AND THE THROTTLE CONTROL WAS REPLACED. THE MANUFACTURER WAS NOTIFIED, BUT OFFERED NO ASSISTANCE. THE FAILURE AND CURRENT MILEAGES WERE 71,229. ....UPDATED 08-24-…
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TL* THE CONTACT OWNS A 2005 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE REVERSING, THE VEHICLE LUNGED BACKWARD. THE VEHICLE WAS TAKEN TO THE DEALER FOR A DIAGNOSIS AND THE THROTTLE CONTROL WAS REPLACED. THE MANUFACTURER WAS NOTIFIED, BUT OFFERED NO ASSISTANCE. THE FAILURE AND CURRENT MILEAGES WERE 71,229. ....UPDATED 08-24-12 *BF THE CONSUMER SHIFTED THE VEHICLE INTO DRIVE IT THEN WENT INTO SAFE DRIVE MODE. WHEN THE VEHICLE WAS IN REVERSE THE CONSUMER DEPRESSED THE BRAKE WITH BOTH FEET TO NO AVAIL. 08/30/2012 *JS
NHTSA ODI #10468031
85,235 miles · Jul 23, 2012
Power Train
TL* THE CONTACT OWNS A 2006 FORD FIVE HUNDRED. THE CONTACT STATED THAT WHILE ATTEMPTING TO DRIVE OUT INTO AN INTERSECTION, THE VEHICLE WOULD NOT MOVE FORWARD. THE VEHICLE ROLLED BACKWARD AND STALLED IT. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE AND CURRENT MILEAGES WERE 85,235.
NHTSA ODI #10467131
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