while we are in idel for a period of time the car wants to surge forward without pushing on the gas. it wants to rev withough the has pedal being pushed. It does it at red lights, stop signs, and if Im in a drive through.
2005 Ford Five Hundred acceleration problems
104 complaints (20% of all complaints for this car). Typical mileage when it fails: 94,400. 3 crashes reported.
- owner complaints
- 104
- of this car's complaints
- 20%
- typical mileage
- 94,400
- crashes
- 3
- recalls
- 0
Which part fails
- Accelerator pedal3
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Ford Five Hundred acceleration problems in other years
Specific symptoms reported on the 2005 Ford Five Hundred acceleration
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Idle instability
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.the federal safety agency'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
PE11018
What 2005 Ford Five Hundred owners say
Most recent owner complaints, unedited.
I was at red light person crossing road I was I. Drive foot on brake, rpms shot up engine reeves cat lunged forward I pressed harder in brake almost hit person. At the time no warning lights. Then at pharmacy drive thru w car I. From and I. Back of me car did same thing. I had to press brake hard to prevent moving hitting car in from of me. I was in drive but foot on brake! No warning lights at time. Had throttle body replaced still had similar problems progressing little did I know when throttle body is replaced has to be reprogrammed by ford! Spent so much money and time trying to figure out problem. This is a flaw w ford 500 2005 throttle body many complaints and test does never issues recall, unsafe. I could have killed someone.
Transmission has very hard and delayed upshift and downshift making it difficult to control speed when accelerating and decelerating. Rpm gets stuck around 3000 at lower speeds and upon engaging into gear has made my tires squawk with a sudden lunge in speed and same problem when trying to stop, the car lunges forward. It acts as though it is in neutral but then when it engages into gear sudden changes in speed occur causing rapid acceleration or deceleration. The problem gets worse after the car is up to normal operating temperature. It doesn't occur as often at colder operating temperature. This problem makes it difficult to get back up to safe highway speeds after having to stop for traffic or red lights as well as hard to get up to speed to safely merge into traffic from an on ramp. As far as "when" this happened it is every day as I drive daily.
(etb) electronic throttle body on my car causes an acceleration that makes the car jerk forward. I've almost hit a wall, and god forbid this happens on the highway I could cause an accident. Its unsafe and should be recalled. Poor design I guess but it's not worth my life. This happened while idling in drive thru when I tried to go forward it idled really high then dropped down. Would bot accelerate afterwards.
I have researched online and a lot of people with my same car are having the same problem. While driving my whole dash board goes out . I can no longer see how fast I'm going. Everything goes to 0 the gas goes to e and my reverse lights stay on until the dash board comes back up. If and when it comes back on my check engine light will be on. This has been happening every since I purchased the car 3years ago on and off.
I took my battery out my 2005 ford five hundred and the fail safe engine mode wrench light came on and it wont go off this need to be recall they say the compter shut down and I have to get it reseted I was driving the vehicle and it almost hit someone when it jurk to the front and I almost hit a vehicle backing up
When coming to a complete stop with my foot on the brake, the car continues to jerk and drive. It also does it while reversing which in both cases has almost caused me to run into the car in front or behind me. It takes a while to pick up speed after stopping. It jerks while picking up speed. The passenger door inside handle does not close on its own. It rains in the car on the driver's side. The front driver's side panel keeps popping out of place.. The thing under the car that keeps you from hitting the curb, is falling apart.
I have been having trouble out of my car and did not know what it was. I could be driving and the accelerator wouldn't have an power. I noticed that the message in my dash read: failed safe mode. I was in traffic when this happened and I had my children in the car and I afraid,we would be rear ended because though,the car was still on,I had no power to continue. I turned the car off and back on and it continued to go into fail safe mode,then I noticed there was a wrench tool,also in the message board. After being in the middle of the road for 20 minutes,the car finally crunk up,so I could move it out the road. As,I crunk the car,I didn't have my feet on the accelerator but I immediately had to put my feet in the break because they car was mounting as if I was pushing the gas. When I finally got ready to pull off barely touching the gas,it jerked off really fast,causing me to almost loose control of the vehicle. I was terrified! I got the car home and called my mechanic. He told me to bring to him the next morning. I get up the next morning to take it to the mechanic and it repeatedly went into fail safe mode,where I could not go anywhere. I finally got it to go after an hour and it did the same,as I was attempting to get it to the mechanic shop.the mechanic tested it and said,the throttle body needed to be replaced. I was also,told,that there was a recall on these same cars for the same problem as im experiencing. I did some research myself and there was a recall on these ford 500 for throttle body. Im just not sure,what year they were recalled. The recall number is 12n03. I hope I have explained in full detail,as,im just thankful,that I,my family or others were injured,before I figured out how dangerous this car is!!
The transmission disengages at various speeds even on the interstate at 55+ MPH causing it to lose power. You must be able to get it stopped on the side of the road and shut the car off and then restart it to correct the problem for a short period of time.
Tl* the contact owns a 2005 ford five hundred. When in the drive or reverse position, the vehicle accelerated independently without warning. The failure occurred intermittently. The vehicle was taken to an independent mechanic, but was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 216,551.
Questions about the 2005 Ford Five Hundred acceleration
Does the 2005 Ford Five Hundred have acceleration problems?
Owners have filed 104 complaints about the acceleration of the 2005 Ford Five Hundred, 20% of all its complaints.
At what mileage do 2005 Ford Five Hundred acceleration problems start?
The typical (median) mileage in owner complaints is 94,400 miles.
Was there a recall on the 2005 Ford Five Hundred acceleration?
There is no recall for this problem on this model year.
What year does the Ford Five Hundred have the most acceleration problems?
The Ford Five Hundred model years with the most acceleration complaints are 2006 (118 complaints), 2005 (104 complaints) and 2007 (70 complaints).
Other 2005 Ford Five Hundred problems
Transmission 136Engine 107Electrical 95Brakes 44Fuel system 44Body 33Locks 22Suspension 17Lights 16Airbags 15Steering 9Driver assistance 7Seat belts 7Tires 6Visibility 6Wheels 4Seats 3
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