Car Accelerates On Its Own Problems of Mercury Grand Marquis - part 1

The contact owns a 2006 Mercury Grand Marquis. While driving into a parking space at approximately 5 mph, the brake pedal was depressed and the vehicle unintendedly accelerated and crashed into the side of a concrete building. There were no injuries and a police report was filed. The vehicle was towed to an independent mechanic where the front end damages were repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 45,800.

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The contact owns a 2006 Mercury Grand Marquis. The contact stated that while driving at 10 mph attempting to engage the brakes, the vehicle suddenly accelerated without warning. The failure recurred three times. The vehicle was taken to a dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 58,300.

I had an incident of unintended acceleration on my Mercury marquis. I was braking for a stop when the engine suddenly started racing. I put my foot on the brake hard but the car still continued to move slowly until I hit the car in front of me. There was no damage to either vehicle (fortunately) but the car's engine was completely out of control.

Driving at 50 mph. Passed slower-moving vehicle by pushing accelerator to floor(full power) during initial pass, then released accelerator. Engine rpm's did not reduce, but instead climbed rapidly with the throttle stuck at the "full power" position. The vehicle continued to accelerate rapidly, reaching a speed of about 75 mph in 50 mph zone on two lane road. Upon recognizing the accelerator was stuck in "wide open" position, I slammed my foot against the accelerator pedal repeatedly, and after about three strikes the engine rpm reduced to normal (consistent with accelerator pedal position) and I was able to regain control of the speed and slow the vehicle. I checked to ensure that neither the floor mat nor any foreign objects were impinging on accelerator pedal. I found no objects interfering with the accelerator pedal. This same problem occurred two more times within two weeks. I reported the events to my local mechanic and he ran a computer diagnostic on the system. It showed no abnormalities or codes. Two mechanics examined the system under the hood and noted no abnormalities. They indicated they "cleaned" something (contacts?). I subsequently took the vehicle onto a larger road without traffic present and attempted to duplicate the problem. When I pressed the accelerator to the floor (full throttle), the same problem occurred. The engine rpm continued to climb rapidly and the vehicle accelerated uncontrollably and rapidly. Taking my foot off the accelerator resulted in absolutely no reduction to engine power. Engine rpm and speed rapidly increased as the engine was stuck in the "full power" position. I was only able to regain control of the engine speed and vehicle speed by repeatedly slamming my foot against the accelerator pedal. After two or three hits, engine power reduced consistent with accelerator position.

Stopped at railroad crossing. Train moving. 1 car ahead of me at railroad. Stop. I was completely stopped. After being stopped for about a minute my car suddenly accelerate and slammed into car in front of me pushing car forward in the side of moving train. My car also slammed into train and was reversed and stopped on railroad post. During this time I could not stop vehicle. The vehicle was traveling at considerable speed.

I was driving up to a light and slowing down. When at 25mph the car suddenly accelerated and I had to put all my weight on the brake to stop. After about 10 seconds the car went back to normal and ran fine. Since that incident my car has done that twice with the same result and I am worried someone will get hurt. I have been researching this online and have found other complaints. I will be taking the car to my mechanic ASAP.

The contact owns a 2007 Mercury Grand Marquis. The contact stated that the vehicle was started and as she lightly depressed the accelerator pedal, the vehicle rapidly accelerated and crashed into a wall from the front passenger¿s side. The contact did not sustain any injuries. The vehicle was taken to the dealer but was not inspected for the cause of the failure. The body damage was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 106,000.

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Tl- the contact owns a 2005 Mercury Grand Marquis. The contact stated that the vehicle exhibited sudden acceleration and the engine rpms would idle abnormally very high seconds prior to the failure occurring. The contact was able to stop the vehicle by shifting into neutral. The contact took the vehicle to the dealer however, the dealer was unable to diagnose the failure. The dealer then recommended having the throttle body replaced but could not guarantee that the repair would remedy the failure. The failure mileage was 25,000. Kmj.

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The contact owns a 2007 Mercury Grand Marquis. The contact was reversing from a parking spot and when she shifted into drive, the vehicle rapidly accelerated independently and crashed into a building. The contact was not injured. The vehicle was towed to a tow lot and was not taken to the dealer for inspection or repairs. The manufacturer was not contacted. The failure and the current mileage was 39,000.

The contact owns a 2003 Mercury Grand Marquis. The contact stated that sudden acceleration was experienced in the vehicle. The vehicle began gradually lunging forward sporadically until it became harder for the contact to stop the vehicle when the failure occurred. The contact stated that once pressure was release from the accelerator pedal, the vehicle rapidly accelerated at full force. The vehicle was not inspected for the failure. The failure and current mileage was 162,000.

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The contact owns a 2008 Mercury Grand Marquis. While driving approximately 35 mph the contact began to depress the brake pedal to decelerate while approaching a traffic light. The vehicle suddenly accelerated on its own and there was an increase in the rpms. The failure occurred intermittently and over time became progressively worse. The vehicle was taken to the dealer for diagnostic testing. The technician was unable to diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 63,000.

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The contact owns a 2005 Mercury Grand Marquis. The contact stated that the vehicle suddenly accelerated whenever the contact was braking to a stop. The failure recurred several times. The vehicle was not taken to the dealer. The failure mileage was unknown and the current mileage was 46,000.

The contact owns a 2004 Mercury marquis. The contact stated that while driving 20 mph with the brakes engaged, the vehicle suddenly accelerated. The contact stated that in order to stop the vehicle, he had to shift into neutral and shut the engine off. The vehicle was not taken to a dealer to have the failure diagnosed. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 50,000 and the current mileage was 67,000.

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The contact owns a 2006 Mercury Grand Marquis. While driving at approximately 30 mph, the vehicle suddenly accelerated up to 50 mph although the contact depressed the brake pedal. The vehicle would not slow down even after the contact turned off the ignition and continued to coast up the hill until it crashed into a curb. There were no injuries but a police report was taken. The vehicle was towed to a local repair shop where it was repaired. After the repair, the dealer performed a diagnostic test on the vehicle but no failure was found. The contact called the manufacturer and was told that they would get back with him for an investigation. The current and failure mileages were 30,351.

Unintended acceleration: last year (Feb 2009) my 2004 Mercury Grand Marquis had an unintended acceleration which I (weight lifter) could barely control and I almost crashed into 2-cars. I also had to have the brakes replaced due to severe braking required to stop the car due to the unintended acceleration I used a reliable mechanic (highly rated by the state of MA) as the local Ford dealer shops are over-priced and unreliable. No diagnostic codes showed-up at the shop after the problem, but I would not have my wife drive this car? the car is well maintained and I had a previous Grand Marquis, so I know the car better than most. Have you heard about this problem and is there a recall? Ford was contacted on Feb 23 2010, via their protal, and indicated that there was no problem or recall, and suggested that I go to their dealer (did not go as I have no need for bs). I informed my local mechanic that the car went into overdrive and I had to drive over the curb (brake to floor to stop it). L burned out the brakes but no one died. There was no diagnostic codes that showed a braking or other electronic problem.

The contact owns a 2003 Mercury Grand Marquis. While traveling at 4 mph, the contact applied the brakes and the vehicle independently accelerated. The contact crashed into another vehicle as a result. There were no injuries. On a later date, while parking in a residential garage, the contact depressed the brakes and the vehicle abnormally accelerated. The vehicle crashed into the garage wall and through the master bathroom of the home. The contact sustained injuries to her pelvis from attempting to apply extreme force to the brake. A police report was available. The vehicle was not diagnosed for the unintended acceleration failure. The failure mileage was 50,000 and the current mileage was 90,000.

The contact owns a 2006 Mercury Grand Marquis. When applying pressure to the brake pedal and placing the vehicle into reverse, the gear lurches forward unexpectedly. The contact has to switch the vehicle into neutral to stop the unintended acceleration. He took the vehicle to the dealer, but they could not identify the cause of the failure. The failure mileage was 27,000 and current mileage was 29,000. Updated 07/17/09 the consumer stated on 2 occasions, he started the vehicle; put it in drive and the motor raced and the vehicle lurches forward. He had to put the vehicle into neutral and turn off the ignition to stop the vehicle. The dealer was unable to duplicate the consumers concern. Updated 07/17/09.

The contact owns a 2008 Mercury Grand Marquis. The contact stated he started the vehicle and when depressing the brakes, the vehicle abnormally accelerated. The contact was unable to stop the unintended acceleration and the vehicle drove over a curb and crashed into a sign. The contact and passenger both sustained minor injuries to their necks from the seat belt. The vehicle sustained substantial front end damages. The vehicle was towed to the dealer and inspected but the cause of the unintended acceleration failure was not disclosed to the contact. The body damage was repaired and the contact traded the vehicle fro another. The failure and current mileages were 500. Updated 10/01/2010. Updated 10/04/10.

Sudden acceleration. Incident occurred in my home driveway. Car lurched forward into my house, damaging the right side of my car and left side of the garage.

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The contact owns a 2006 Mercury Grand Marquis. The contact stated that while stopped at a stop light, there was an increase in the engine rpms. The contatc had to apply heavy pressure to the accelerator pedal to keep the vehicle stopped. The failure occurred intermittently and the vehicle also experience unintended acceleration. The vehicle was taken to the dealer, who inspected it and stated that there was no failure. The manufacturer was not notified. The failure mileage was 2,000 and the current mileage was 111,000. The VIN was unknown.

This car has a dangerous defect. Randomly when in a stationary position, by holding the brakes, the engine and transmission sometimes suddenly accelerates powerfully, making it difficult to hold the car. I notified the dealer about this defect, several times in writing and by phone. Dec, 29, 2005 they took it on a drive, and claimed to have found no defect. Subsequently, Jan, 15, 2006 at approximately 1:00 pm, I was stopped at a red light on grand st. Nyc behind an SUV, by holding the brakes, all of a sudden it accelerated, and it was impossible to hold the car. It slammed into the SUV in front of me, smashing my front. Luckily, the SUV was not damaged. But even more luckily, we did not get hurt, (I had in the car my wife, an adult daughter, and 2 grand children). In addition, I guess we were extra lucky that we had the SUV in front of me, which averted a catastrophic mowing down of pedestrians crossing. The dealers took in the car, and notified me yesterday, Jan, 19, 2006, that they ran tests and find nothing wrong with the car.

The contact owns a 2005 Mercury Grand Marquis. The contact stated that while driving at any speed and attempting to brake, the vehicle suddenly accelerated. The failure was experienced numerous times. The vehicle was taken to the dealer several times for the failure where the dealer test drove the vehicle, but was unable to duplicate the failure. The vehicle was then taken to a local mechanic for further inspection. The contact also experienced failures with the headlights. The headlights were replaced but the abnormal acceleration failure was not repaired. The VIN was not available. The failure mileage was 150 and the current mileage was 15,600.

The contact owns a 2005 Mercury Grand Marquis. While driving at approximately 10 mph and depressing the brakes, the vehicle suddenly accelerated until the brake pedal was released. Also, while parked, the contact depressed the brakes and the vehicle lunged forward. The failure recurred intermittently. The vehicle was not taken to the dealer for diagnostics or repairs. The VIN was not available. The approximate failure mileage was 5,000.

The vehicel accelerated suddenly and the brakes could not stop it. While in a parking lot to put air in the tires the vehicle just took off and crashed into a building. This happened July 30, 2005 the consumer is getting ready to contact Ford.

Sudden acceleration in a 2003 Mercury Grand Marquis. This happened after putting the vehicle in drive, it took off at an excessive rate of speed crossed a street and jumped two curbs about 15 inches high within 5 or 6 seconds. My thoughts were "what is happening?" & "brake or you are going to die" thank god this vehicle drown in hurricane katrina. I called your ofc in 2004 after this happened and was sent a form to fill out and return to you which I never did. However, with the Toyota recall it disturbs me that my Ford did the same thing. An investigation needs to be made as to why these things are happening because in my case it was not a floor mat and neither was it driver's error. It is important to myself that this incident is reported and hopefully someone will take it serious and find out what the real problem is before more lives are lost. I consider myself very lucky that I was not injured and others were not injured. My vehicle sustained $5,000. 00 worth of damage and at the time the incident was reported to the Ford dealership. They supposedly checked the car but could find no reason for the sudden acceleration.

Rental auto was parked face out in hotel parking lot. Driver started auto, driver and passenger put on seat belts; with foot on brake, driver shifted into drive and car suddenly accelerated a a high rate of speed (tires smoking) across parking lot driveway and crashed into two parked cars in opposite parking spaces. Both parked cars were driven back approximately 10 to 15 feet, one of the autos went through hedges and crashed into a car parked at the street. Driver was unable to stop car, and finally turned off ignition after collision. Witness to police report stated that heard tires screeching and tires were still smoking after autos collided. Car was towed to hertz lot. Have not gotten report of cause from hertz. The entire event from placing the car in drive until it struck the parked cars took about 2 seconds (the auto travelled approximately 30 feet to impact).

Consumer stated the vehicle experienced sudden acceleration on numerous occasions. The acceleration stopped by itself on attempts to stop the acceleration. When on cruise going up a hill, the vehicle would accelerate rapidly when holding the accelerator up.

While backing out of a parking lot the vehicle suddenly accelerated without prior warning. Causing damage to the vehicle. The dealership is aware of the problem. Mr.

Sudden acceleration of vehicle.

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Consumer stated while backing out at 5 mph, vehicle suddenly accelerated, consumer was not able to stop vehicle, after about 100 ft vehicle hit a building, the vehicle was totalled, no injuries.

Vehicle suddenly accelerated when applying brakes to stop at approaching stop light, this occurred for second time. Vehicle taken to dealer. On first occasion dealer was unable to locate cause. On second occasion dealer replaced transmission. Feel free to provide any further information on this matter.

I pulled up to an intersection, the car accelerated rapidly. I mashed brakes but car kept on rapidly accelerating, tires screeching and peeling rubber. I had to turn off ignition to stop car.

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Vehicle experienced sudden acceleration causing it to hit a building when pulling into a parking space.

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Ltr fwd email fm (NY) reporting incident of sudden unintended acceleration fm owner of a 2007 Mercury Grand Marquis, reply to massapequa park district ofc. The consumer stated while driving on the turnpike, the vehicle suddenly accelerated and he could not stop it, until he turned off the engine and coasted quite a distance. The vehicle was towed to a Ford dealership and the dealer claimed there was carbon buildup in the air filter which caused the sudden acceleration. The consumer stated he experienced the same problem again. The consumer believed it is the same problem Toyota's are having.

Vehicle would suddenly accelerate while idling at a stop light/sign. Had no warning. Would need to press hard on brakes and shift/ turn vehicle off. Had been to dealer and mechanic who placed vehicle on diagnostic machine. Nothing was found, even after being test driven.