While driving in heavy traffic in center lane of three line highway. Vehicle suddenly lost power creating a emergency situation. I had to force traffic to allow me proceed to side of the road. Endangering myself and my family, I sat for about 30 min. Before I could move the vehicle.

- Columbus , GA, USA

My wife was driving in town and the car began to "buck" and slow down. After a few minutes the accelerator had no effect on the engine. It appeared to be idling only. She pulled off the road and stopped the car, waited A10 minutes or so, and started it again. There was no difficulty starting the car, but again the accelerator had no effect on the engine speed. We had the car towed to the local dealership where it was diagnosed with a bad throttle body and throttle motor. The repairs cost approximately $500.

- College Station, TX, USA

The vehicle started to stall when the accelerator peddle was engaged, after turning vehicle off and restarting it would travel approximately 50 to 100ft. Before again stalling.

- Kansas, OK, USA

When driving at a slow speed of 20-25 mph, the vehicle stopped accelerating and bucked a little. The wrench (powertrain) signal light up on the dash, so I proceeded to pull over, put the car in park, and shut it off. After a few minutes I turned it on again and all seemed fine, though the car was now slow moving and less smooth through shifting. The same thing occurred 9 days later, with the vehicle responding even more slowly afterwards.

- Natick, MA, USA

I was driving along on the highway (I-77 N) and all of a sudden my car started to jerk. The wrench tool light lit up on the dash board and the car immediately began to loose speed. The change in power and speed was quick and I had to quickly check the surrounding traffic and pull the car over to avoid and accident. After pulling over to the side of the road I cut the car completely off and it started back up. I took the car to the dealer where I purchased the car and I was advised to replace the filter. I purchased a filter from Ford and my car ran smoothly for about 2 weeks. I would push on the accelerator but it would not accelerate. Each time the wrench tool would appear and the engine light would come on. I have lost speed in the middle of an intersection. After my car started to cut off again following the installation of the new filter I took the car back to the dealer and was instructed to purchase throttle body spray. They cleaned out the throttle body and the car drove fine for a few days until I began experiencing the same problem. Some times I would have to cut my car off a few times and restart it on one round trip. I keep regular maintenance on this car, changing the oil and rotating the tires, etc. I purchased the car in December 2012 because the car I had over $2,500 of needed maintenance. I needed a reliable car to get around as the primary transportation for my family. I took the car back to the dealer a few times and they explained the code and explanation of the problem: Trouble code P2111, throttle body actuator stuck open and closed. I really hope this investigation is expedited and that Ford recalls the Mercury Mariner 2010 due to the faulty throttle bottle. I have had zero maintenance issues with my vehicle other than the throttle body issues.

- Charlotte, NC, USA

I was on a major expressway when the vehicle starting decreasing speed. I went from 55 mph to 45 to 35 to 25 to 15 to 5 and the stopped. Luckily traffic was light and when this started, I pulled over to the shoulder of the road which was close to an exit. I somehow got the SUV home, starting the engine, it dying out and going a couple of feet over and over again. We took the vehicle to our auto ship and they said that Ford had a problem with the throttle and gave us a North Carolina consumers council article. They did not have the digital equipment to fix and referred us to Ford dealership. Ford dealership advised it was the throttle. I talked to Ford customer service and they advised there was no recall and there was nothing they could do.I we spent $362.56 on throttle and two letters later Ford will do nothing since they say we do not have the extended warranty and we are beyond three years/36,000 miles. I was afraid when the car died out on the expressway.

- Arlington Heights, IL, USA

We were traveling down the highway at 60 mph when the engine went dead like the switch was cut off. I tried to restart the engine and it would try to start then go dead. I did this 10 times and it finally started. I took it directly to the local Ford dealer. A computer check did not show any problem. The dealer said he did not know what to work on and said to return it when it happens again.

- Jackson Gap, AL, USA

Vehicle loosing power and the check engine light comes on, U will have to shut vehicle off and re crank it.

- Vicksburg, MS, USA

I was leaving a soccer game and the car went to about 40 mps and the wrench light came on and the pedal went limp. I pulled over and stopped the car and the car started shaking like it was out of time. I put it in part and shut off the car when I turned the car back on the light was off. I was able to drive 20 miles back and forth and then it did the same thing again. I have taken it to run the codes and there were none. Today 8/31/13 it did the same thing again and now finally the engine light came on. Codes were ran at autozone and P1212 throttle body sensor finally showed up. I had already checked the web the first time that it did it after talking with a mechanic that works at Ford and he told me what it was and that there was no recall. I am very upset. I just purchased this car less than three months ago!!! single mom someone help!!!

- La Vergne, TN, USA

On several occasions the vehicle would suddenly loose power from highway speeds and limp to the side of the road. A light would come on that looked like a wrench. Once the vehicle was stopped and restarted I was able to move on normally until the next episode which began to come more frequently. After the first incident I immediately went to my Ford dealer and spoke to someone in service who told me they could hook the car up to the computer but since the wrench light went out it would most likely show nothing and I would have to pay $100 for this service. I have an extended warranty with a $100 deductible that was going to run out in 400 miles. I have the vehicle in right now and they just called and told me the throttle body needs to be replaced and it is not covered under the extended warranty and will cost me over $500.

- Grand Haven, MI, USA

Vehicle stalled 3 times and had no throttle response. Turn key off and restart vehicle to regain throttle response. Wrench light and engine light came on. Mechanic retrieved memory codes P2111 and P2112. Performed electronic throttle body test with ids. Throttle body failed and has a fault. Mechanic replaced throttle body

- East Brunswick, NJ, USA

While driving on several occasions the vehicle unexpectedly stalls with no prior warning. The third time I was traveling at approximately 60 mph on the parkway. I have a second 2010 Mariner which had exactly the same problem in August 2013. Both were repaired by the dealer by replacing a defective throttle body.

- Wantagh, NY, USA

While driving on three separate occasions the vehicle unexpectedly stalls with no prior warning. The third time I was traveling at approximately 60 mph on the parkway. A dangerous condition to say the least. I have a second 2010 Mariner which had exactly the same problem in January 2013. Both were repaired by the dealer by replacing a defective throttle body.

- Wantagh, NY, USA

I had just gotten back from a long trip, and was stopped at a red light - I barely accelerated once it turned green, and the car lost complete and total power, in the middle of the intersection. A wrench light came on. No throttle was working as much as I pressed down. The car kept snail pacing until I got to an empty parking lot where I turned the vehicle off. I turned it back on and it revved itself, so I turned it back off. Turned it back on and all of a sudden it worked again. I took it to the dealer who claimed it was the "electronic throttle body" failing and charged me $98 for the diagnostic. I decided for a second opinion, and they took everything apart to see if it was something else since the car is only 3 years old and only has 30,000 miles on it. After much testing they concluded it was in fact the "electronic throttle body, " and the repair cost me $595. Before this happened, 2 or 3 days prior, I felt the car was losing power and it was hard to get it to go at its V6 potential. Car still hesitates and feels like the engine jumps out when it stops and moves again... sure enough my engine mounts now need replacing, and that's anywhere between $350-$500. Another recall perhaps? it's been doing this since day 1, and my warranty ended about 6 months ago. Go figure... just when 3 years was up! sigh

- Lakewood, CA, USA

The contact owns a 2010 Mercury Mariner. The contact stated that while traveling various speeds, the vehicle suddenly stalled. The vehicle was moved to the shoulder and restarted. The vehicle was not repaired. The manufacturer was not contacted about the failure. The failure mileage was 51,000.

- Princeton, TX, USA

Driving at approx 40 mph car engine reacts abnormally and "wrench" warning light appears and car "stalls" out and, although fully operational will not drive. Turn the car off and back on and the engine eventually will turn over but again repeats the same issue of "stalling" out. After having the car towed, the diagnosis is a defective "throttle-body".

- Friendswood, TX, USA

My husband was driving the car at 65 mph on the highway and the care went limp and would not accelerate. He had to pull over to the side and restart the car. This happened to him 3 times and me one time. I took it to a dealership and it is the throttle body. You have received several complaints and there is an ongoing investigation. In addition, the dealership was going to overcharge me for the repair. Please do everything in your power to get Ford to recall this party and reimburse the customer before there is a fatality.

- Kennesaw, IL, USA

I have no throttle response, engine RPM drop back to an idle, engine runs rough and stalls. No power. Moving to the side of the road, turn engine off and restart and will runs fine, but today this problem recurred every 4 miles. I was only 22 miles from home but that is a lot of stopping along side of the road.

- New London, OH, USA

My 2010 Mercury Mariner went into limp mode and would not respond to throttle inputs. I researched this issue and learned that this problem appears to be related to a faulty throttle body or electronic control panel for the throttle body. This an extremely dangerous condition as it appears at random without warning. I believe this must be a defect that has been known to Ford for some time and needs to be the subject of a recall.

- West Creek, NJ, USA

Was driving on freeway at about 70-75 mph and hesitation occurred and speed uncontrollably decreased. I went to right lane (had been in middle lane) and stopped on the shoulder of the nearest exit lane. Luckily it was very close. I was afraid that I would lose control of steering also. This is 3rd time this happened, so took to dealership and they replaced throttle body assm. For close to $500. Technician said I should be happy now, the new part had been re-designed. I'd be alot happier if Ford had taken responsibility earlier when they realized it needed to be redesigned. The previous occurrence I was in left lane at very busy time on xpressway and had to pull onto the left hand shoulder....very close to being hit.

- Livonia, MI, USA