NHTSA owner reports · September 18, 2026 snapshot.
Fuel System, Gasoline complaints
19 reportsClear category filter95,000 miles · Aug 28, 2013
Fuel System, GasolineVehicle Speed Control
WHEN YOU SHIFT FROM DRIVE TO REVERSE OR REVERSE TO DRIVE, THE VEHICLE LUNGES. AND DOES IT SEVERAL TIMES. FORD IS AWARE BUT WITH ONLY HALF FIX THE THROTTLE PROBLEM, BY CLEANING IT NOT REPLACING IT. I SPOKE TO A COUPLE DEALERS AND THEY BOTH SAID THE SAME THING, "THAT WILL ONLY CLEAN THE AFFECTED PART AND THAT 65 PER CENT END UP CO…
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WHEN YOU SHIFT FROM DRIVE TO REVERSE OR REVERSE TO DRIVE, THE VEHICLE LUNGES. AND DOES IT SEVERAL TIMES. FORD IS AWARE BUT WITH ONLY HALF FIX THE THROTTLE PROBLEM, BY CLEANING IT NOT REPLACING IT. I SPOKE TO A COUPLE DEALERS AND THEY BOTH SAID THE SAME THING, "THAT WILL ONLY CLEAN THE AFFECTED PART AND THAT 65 PER CENT END UP COMING BACK AND THE CUSTOMER ENDS UP PAYING TO $800.00 TO $900.00 TO REPLACE THE PART. THAT FORD WILL NOT REPLACE THE PART EVEN THOUGH IT IS A RECALL PART". NO CRASH YET. HAVE TO BE SURE TO KEEP FOOT ON BRAKE AND KEEP PLENTY OF DISTANCE FROM OTHER VEHICLES / OBJECTS. UPDATED 09/19/13*LJ
NHTSA ODI #10537625
65,000 miles · Jul 28, 2013
Electrical SystemFuel System, GasolineVehicle Speed Control
TWO PROBLEMS: 1. CAR SURGES SPORADICALLY (I.E. WHEN PULLING INTO PARKING SPACE WITH FOOT ON BRAKE, CAR SURGES AS IF PRESSING THE ACCELERATOR). 2. WHILE DRIVING ALL LIGHTS ON DASH GO OUT, SPEEDOMETER AND TACHOMETER GO TO ZERO. I HAD THE THROTTLE BODY REPLACED ONCE (SEVERAL MONTHS LATER, FORD REIMBURSED ME FOR THE COST UND…
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TWO PROBLEMS: 1. CAR SURGES SPORADICALLY (I.E. WHEN PULLING INTO PARKING SPACE WITH FOOT ON BRAKE, CAR SURGES AS IF PRESSING THE ACCELERATOR). 2. WHILE DRIVING ALL LIGHTS ON DASH GO OUT, SPEEDOMETER AND TACHOMETER GO TO ZERO. I HAD THE THROTTLE BODY REPLACED ONCE (SEVERAL MONTHS LATER, FORD REIMBURSED ME FOR THE COST UNDER CUSTOMER SATISFACTION PROGRAM 12N03. THIS SOLVED THE PROBLEM FOR SEVERAL MONTHS. THE PROBLEM IS NOW RE-OCCURRING. FORD HAS INDICATED THAT THEY WILL NOT REPAIR THE CAR AGAIN. THIS SEEMS TO BE A SAFETY ISSUE. *TR
NHTSA ODI #10532270
74,500 miles · Nov 9, 2011
Engine And Engine CoolingFuel System, GasolineVehicle Speed Control
FORD 500 LURCHES SEVERELY AT RANDOM TIMES WHILE THE ENGINE IS ENGAGED. THIS HAPPENS MOST DANGEROUSLY AT HIGH SPEEDS, DUE TO DRIVER'S INABILITY TO CONTROL VEHICLE ADEQUATELY TO DEFEND AGAINST POTENTIAL CRASHES OR CONTROL SPEED DURING TURNS. THIS HAS CAUSED PROBLEMS ON THE SNOW AND ICE HERE IN ALASKA BECAUSE UNCONTROLLED ACCELER…
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FORD 500 LURCHES SEVERELY AT RANDOM TIMES WHILE THE ENGINE IS ENGAGED. THIS HAPPENS MOST DANGEROUSLY AT HIGH SPEEDS, DUE TO DRIVER'S INABILITY TO CONTROL VEHICLE ADEQUATELY TO DEFEND AGAINST POTENTIAL CRASHES OR CONTROL SPEED DURING TURNS. THIS HAS CAUSED PROBLEMS ON THE SNOW AND ICE HERE IN ALASKA BECAUSE UNCONTROLLED ACCELERATION REDUCES TRACTION. ALSO OCCURS AT LOW SPEEDS, WHICH IS MORE EASILY CONTROLLED THROUGH BRAKING, BUT REQUIRES EXTREME CAUTION IF ENGAGING VEHICLE WHEN PEDESTRIANS OR OTHER VEHICLES ARE NEAR. IT HAS SURPRISED AND SCARED ME ON MANY OCCASIONS SINCE I FIRST PURCHASED THIS CAR A MONTH AGO, BUT THE REASON I AM WRITING THIS IS BECAUSE I HAD A SCARY INCIDENT TODAY WHEN PULLING OUT OF A GROCERY STORE PARKING LOT (PEDESTRIANS IN FRONT OF ME WHEN IT SUDDENLY JUMPED AS SOON AS ENGINE ENGAGED). TOOK IT TO THE MECHANIC AND DIAGNOSTIC CHECK SAYS ISSUES WITH FUEL DELIVERY SYSTEM. THE MECHANIC STATED THAT AFTER RESEARCHING THE ISSUE THIS IS A VERY COMMON PROBLEM FOR THIS MODEL AND THAT IT IS MOST LIKELY THE THROTTLE BODY, AND SAYS THE CAR SHOULD NOT BE DRIVEN IN ITS CONDITION. IT IS ONE OF THE SCARIEST ISSUES I'VE EVER HAD TO DEAL WITH. AFTER READING MORE ABOUT IT ON THE INTERNET THIS EVENING IT SEEMS THAT THIS ISSUE IS VERY COMMON AND HUNDREDS OF PEOPLE HAVE HAD SIMILAR SCARY INCIDENTS WITH THIS CAR THAT THEY HAVE REPORTED ONLINE. IF THIS MANY PEOPLE ARE WRITING ABOUT IT ONLINE, PRESUMABLY THERE ARE THOUSANDS MORE WHO ARE HAVING THE SAME PROBLEM AND DO NOT HAVE THE RESOURCES OR KNOW HOW TO REPORT THE ISSUE. *TR
NHTSA ODI #10435115
137,000 miles · Nov 7, 2011
Engine And Engine CoolingFuel System, Gasoline
CRUISING APPROX 65 MPH. I HEARD A THUD (LIKE RUNNING OVER A POT HOLE). THE CAR LURCHED FWD THEN SEEMED TO SHUT OFF, HOWEVER IT WAS STILL RUNNING. THE RPM DROPPED BELOW 1000 AND THE THROTTLE WOULD NOT WORK. PLACED CAR IN NEUTRAL AND MOVED TO THE SIDE OF THE ROAD. NOTICED THE WRENCH LITE WAS ILLUMINATED. TURNED THE CAR OFF A…
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CRUISING APPROX 65 MPH. I HEARD A THUD (LIKE RUNNING OVER A POT HOLE). THE CAR LURCHED FWD THEN SEEMED TO SHUT OFF, HOWEVER IT WAS STILL RUNNING. THE RPM DROPPED BELOW 1000 AND THE THROTTLE WOULD NOT WORK. PLACED CAR IN NEUTRAL AND MOVED TO THE SIDE OF THE ROAD. NOTICED THE WRENCH LITE WAS ILLUMINATED. TURNED THE CAR OFF AND RESTARTED. THE CAR SEEMED TO DRIVE FINE AFTER THAT WITH NO LITE. TOOK THE CAR TO HAVE THE CODES CHECKED. TWO CODES SHOWED: THROTTLE STUCK CLOSED AND THE THROTTLE FORCED TO IDLE (APPARENTLY A SAFETY FEATURE). TWO DAYS AGO HAD TO HAVE THE PCM AND TCM UPDATED AND REPLACED THE UPPER MOTOR MOUNT. FROM PREVIOUS COMPLAINTS THERE ARE SEVERAL WITH THE CAR TAKING OFF AND A FEW OF WITH MY ISSUE. ALL SEEMED TO BE ATTRIBUTED TO THE THROTTLE BODY MALFUNCTIONING WHICH IS APPARENTLY THE CASE HERE. GIVEN THE AMOUNT OF COMPLAINTS AND ISSUES CONCERNING THIS ITEM, SURELY THERE IS A RECALL REQUIRED. AT THE VERY LEAST THE MANUFACTURE SHOULD GIVE US WHAT WE PAID FOR THE VEHICLE AS CREDIT TOWARD ANOTHER CAR (ANY MAKE AND MODEL) IF THEY ARE NO GOING TO FIX THE PROBLEM. *TR
NHTSA ODI #10434819
45,000 miles · Sep 6, 2011
Fuel System, GasolineVehicle Speed Control
WHEN GOING SLOW LIKE PULLING INTO AND OUT OF A PARKING SPACE OR GOING THROUGH SCHOOL LINE, CAR WILL "SURGE" OR LUNGE UNEXPECTEDLY. VERY UNSAFE FOR THE PEOPLE AND VEHICLES NEARBY. *TR
NHTSA ODI #10423880
Mileage unknown · Sep 5, 2011
Electrical SystemElectronic Stability Control (esc)Fuel System, Gasoline
MY FORD FIVE HUNDRED THROTTLE JUST SHUTS DOWN,WITH NO WARNING AT ALL. I AM AFRAID TO DRIVE IT BECAUSE IT MAY SHUT DOWN IN TRAFFIC AND SOME GET SERIOUSLY HURT. I HAVE SEARCHED THE INTERNET AND FOUND MORE COMPLAINTS SAME AS MINE. THE PROBLEM IS WITH A THROTTLE BODY MALFUNCTION. SOME THING SHOULD DONE BEFORE SOMEONE IS KILLED! *TR
NHTSA ODI #10423787
83,549 miles · Aug 27, 2011
Engine And Engine CoolingFuel System, GasolineVehicle Speed Control
5/20-7/18/11 CAR ACCELERATED QUICKLY AND LURCHED BACKWARD WITH BRAKE ON WHILE BACKING OUT OF PARKING SPACE; WRENCH LIGHT CAME ON. ERROR CODES WERE FOR ALTERNATIVE FUEL CONTROL MODULE AND THROTTLE ACTUATOR CONTROL SYSTEM. SOMETIMES CAR LURCHED FORWARD WHILE BRAKING, ENGINE REVVED, CAR SHUDDERED, AND WRENCH AND/OR CHECK ENGINE LI…
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5/20-7/18/11 CAR ACCELERATED QUICKLY AND LURCHED BACKWARD WITH BRAKE ON WHILE BACKING OUT OF PARKING SPACE; WRENCH LIGHT CAME ON. ERROR CODES WERE FOR ALTERNATIVE FUEL CONTROL MODULE AND THROTTLE ACTUATOR CONTROL SYSTEM. SOMETIMES CAR LURCHED FORWARD WHILE BRAKING, ENGINE REVVED, CAR SHUDDERED, AND WRENCH AND/OR CHECK ENGINE LIGHT CAME ON. STARTED HAPPENING ALMOST DAILY. VERY SCARY AND UNPREDICTABLE. MASS AIR FLOW SENSOR AND EGR VALVE WERE REPLACED. HAD SAME ISSUES 2 DAYS LATER. THROTTLE BODY AND VACUUM HOSES WERE REPLACED. CONTACTED FORD AND THEY REFUSED TO COVER PARTS AND LABOR BECAUSE CAR WAS NO LONGER UNDER WARRANTY. LAST REPAIR WAS DONE 30 DAYS AGO AND I'VE HAD NO MORE PROBLEMS, BUT IT COST ME $1600 TO REPAIR.
NHTSA ODI #10423383
110,000 miles · Jul 17, 2011
Fuel System, Gasoline
THE ENGINE SURGES WHEN YOU PUT IN DRIVE OR REVERSE. THIS IS VERY DANGEROUS. THIS IS MY WIFE'S CAR AND THIS PROBLEM HAS ME CONCERNED ABOUT HER SAFETY EVERY TIME SHE GETS IN THIS CAR. I THOUGHT ABOUT GETTING RID OF IT BUT I COULDN'T LET SOMEONE ELSE HAVE A CAR WITH THIS DANGEROUS PROBLEM. I HOPE SOMEONE CAN FIND OUT WHAT THE REMED…
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THE ENGINE SURGES WHEN YOU PUT IN DRIVE OR REVERSE. THIS IS VERY DANGEROUS. THIS IS MY WIFE'S CAR AND THIS PROBLEM HAS ME CONCERNED ABOUT HER SAFETY EVERY TIME SHE GETS IN THIS CAR. I THOUGHT ABOUT GETTING RID OF IT BUT I COULDN'T LET SOMEONE ELSE HAVE A CAR WITH THIS DANGEROUS PROBLEM. I HOPE SOMEONE CAN FIND OUT WHAT THE REMEDY IS FOR THIS PROBLEM. PLEASE HELP. *TR
NHTSA ODI #10413237
70,000 miles · Jul 15, 2011
Fuel System, Gasoline
A FUELD DELIVERY SYSTEM ISSUE ON MY 2006 FORD FIVE HINDRED. THE ENGINE ACCELERATES THE VEHICLE DURING LOW SPEEDS IN FORWARD AND REVERSE, WHILE APPROACHING AN INTERSECTION WITH FOOT ON BRAKE. THIS HAS HAPPEND 4 TIMES IN THE LAST WEEK.
NHTSA ODI #10412387
100,600 miles · May 23, 2011
Fuel System, Gasoline
MY FORD 500 LUNGES FORWARD WHEN APPLYING BRAKE OR GOING INTO REVERSE. I READ ABOUT THE FREESTYLE INVESTIGATION ON LUNGING AND MY 500 IS DOING THE VERY SAME THING. INVESTIGATION NEEDS TO BE DONE ON THE 500 AS WELL BECAUSE IT SEEMS I'M NOT THE ONLY ONE WITH THIS PROBLEM. *TR
NHTSA ODI #10402421
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