I own a Ford 500 2007. The engine seems to rev up with out pressing the gas pedal. If you are at a stop sign and release the brake the car will lunge forward on its own. I spoke to a mechanic about this problem and he has encountered it before with other 500's. he told me its the throttle body. He told me when he orders them they are on back order.

- Raton, NM, USA

The contact owns a 2007 Ford Five hundred. While the vehicle was in reverse or drive the vehicle suddenly accelerated. He had to depress the brakes very quickly in order to slow down or stop the vehicle. The dealer was contacted and stated that the throttle body needed to be replaced, but the parts were on back order. The manufacturer was contacted but there wasn't a favorable response. The failure mileage was 65,360.

- Elberton , GA, USA

The throttle body on our 2007 Ford 500 stuck closed causing engine to stall. The throttle body had to be replaced. Fortunately this happened on a 2 lane road but my wife had just got off a high speed interstate highway. Failure caused rapid deceleration of the vehicle leaving her stranded in the traffic lane. This would probably have resulted in an accident if this would have happened on the interstate. The car has around 37,000 miles on it.

- Masontown, WV, USA

The contact owns a 2007 Ford Five hundred. While the contact was driving less than 5 mph in the reverse position, an unexpected increase of acceleration occurred. Immediately, the brake pedal was engaged and the vehicle came to a stop. The vehicle was taken to an authorized dealer on two separate occasions where they were unable to duplicate the problem and the technician stated the failure could possibly be related to the air conditioner compressor which was replaced. The failure continued and the vehicle was taken back to the dealer and they informed that the failure was contributed to the throttle body. The vehicle had not been repaired. The failure mileage was unknown. J

- Elk Grove, CA, USA

The contact owns a 2007 Ford Five hundred. She attempted to accelerate from a stop but the vehicle would not move forward. After a few moments of applying pressure to the accelerator pedal the vehicle began to accelerate. The vehicle was taken to an authorized dealer where they reset the computer system because they were unable to diagnose the failure. The failure has since recurred intermittently. The vehicle had been taken back to an authorized dealer on numerous occasions where the computer was again reset and the throttle body was replaced. The failure continues to recur intermittently while accelerating from a stop or while driving at any speed. The failure mileage was 3,000 and the current mileage was 60,271.

- Mendenhall, MS, USA

The contact owns a 2007 Ford Five hundred. The contact stated that she experienced an intermittent failure in which the vehicle would surge forward or backwards when shifted out of the park position. The failure occurred as soon as she took her foot off of the brake pedal. The vehicle was taken to an authorized dealer where the contact was informed that the throttle body needed to be replaced. The parts were on back order and the vehicle was not repaired. The failure mileage was unknown and the current mileage was 67,000.

- Pomona, CA, USA

Sudden acceleration in both forward and reverse. Has occurred on four (4) separate occasions. Ford dealer can find no codes, therefore refuses to repair. As with most sudden acceleration problems, I suspect the throttle body is defective. This is a serious safety issue!

- Smyrna, DE, USA

I own a 2007 Ford 500 & have recently been having a issue with surging when I have my car in the park position & put it in drive. Then it started surging when I am in reverse now. I spoke to my local Ford dealership when I had my oil changed & they advised that I had to have a update that cost $81 to fix the problem. They knew exactly all about the problem when I started explaining it to them. It takes about 1 hour to fix the problem. I am going next week to have it done.

- Chatsworth , GA, USA

The contact owns a 2007 Ford Five hundred. While traveling at approximately 70 mph, the contact depressed the accelerator pedal and released it but the vehicle continued to accelerate. The vehicle accelerated up to 100 mph and after a few moments, it decelerated suddenly. The failure occurred on two different occasions. The vehicle had not been inspected or repaired at the time of the complaint. The current mileage was approximately 92,970. The failure mileage was approximately 93,020.

- Avon, OH, USA

2007 Ford Five hundred operating on the MA. Turnpike... stepped on accelerator to kick into passing gear to pass a trailer truck and accelerated to app 75 mph...... lifted foot off accelerator, but car stayed in passing gear and accelerated further..(to app 90 mph before episode ended) applied brakes and fought the acceleration while trying to brake... tried pushing the "off" switch for cruise control (even though I was not using cruise control to no avail..... tried lifting gas pedal up with toe of my foot...no results.... have no floor mats in the car that might have tangled...... finally stomped the gas to the floor several times in a rapid succession and accelerator let up..... after changing my shorts, tried to duplicate the episode.... but it did not get stuck again even though I stomped it into passing gear several times.... it has not happened again since then (1 day ago or app. 300 miles of driving)..

- Westfield, MA, USA