The contact owns a 2011 Ford Taurus. The contact stated that while his grandson was driving at an undisclosed speed, the vehicle shuddered. The check engine warning light intermittently illuminated. The vehicle was towed to the dealer, where it was diagnosed with a faulty water pump causing coolant intrusion into the engine. The dealer replaced the engine; however, the failure recurred. The vehicle was towed back to the dealer twice, and the engine was replaced for the second and third time. The failure persisted. The vehicle was then towed to Colorado Auto Finders (12351 E Arapahoe Rd, Centennial, CO 80112), where the ignition coils and spark plugs were replaced. The failure recurred. The vehicle was towed to two separate independent mechanics, who diagnosed the vehicle with DTC Codes: P0300, P0302 (Cylinder 2 Misfire Detected), and P0306 (Cylinder 6 Misfire Detected). The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was 105,213.

- Greeley, CO, USA

When starting off from traffic light the car would start to move and then almost shut down. Another time I was stopped at a stop sign and when I started out it was like someone slammed on the brakes. The seat belt tightened very hard on my neck.

- Grove City, PA, USA

Try to stop vehicle at a stop sign, but it continues to go with motor revving. Have to put car in neutral to keep it from going through the stop sign. Ford refuses to believe me, because it doesn't show up on their code reader. This happens randomly, and a mechanic must witness it for them to acknowledge that it happens. I do not have my foot on the brake and gas at the same time, and a floor mat is not on the accelerator.

- Perryopolis, PA, USA

The contact owns a 2011 Ford Taurus. While traveling 30 mph, the contact noticed that the vehicle suddenly began to accelerate however, once the vehicle speed reached 60 mph, the failure would correct itself and the vehicle would drive normally. The vehicle was taken to the dealer where the contact was advised that the failure could not be repaired. The VIN was not available. The current and the failure mileages were 22,000.

- Taylor, MI, USA

Just hours after routine oil and filter change, I pulled out onto the highway, accelerating to access the roadway at a reasonable speed of traffic. The engine began to slow, and then stopped completely.....no power, nothing!!!! I was almost rear-ended and catapulted into oncoming traffic. The dealership was contacted and brought the car in, where the service manager said the engine shut down was caused by an insect that "got thru" the screen on the air filter valve(?) and attached itself to the filament that reads and adjusts the air/gas mix. The system couldn't read it and the engine "automatically shut down". this is a huge safety risk....how can an engine be shut down by an insect, regardless of auto speed, location etc etc etc. Any "automatic" engine shutdown is an inexcusable design flaw and should be corrected before there is a fatality....it was almost my fatality. The service manager also said this was "only the second time" he had seen this problem in the Taurus.

- Greensboro, GA, USA

On three different occasions, my 2011 Ford Taurus' engine stopped while I was driving. This happened once in reverse while backing up with 3300 miles on the vehicle, and twice while driving between 30-40 mph. The most recent stoppages happened after I went over a railroad crossing; thus rattling the car and its components. I called the dealership and they asked that I bring the vehicle in immediately. I was told there was a tsb regarding this problem (however, they failed to notify me) and proceeded to "fix" it, saying it was a throttle body and motor assembly deficiency. The tsb # is 7T4Z*9E926.

- Williamsburg, VA, USA

The contact owns a 2011 Ford Taurus. While driving approximately 40 mph, the vehicle stalled. The vehicle coasted to a stop and upon restart, the contact was able to continue driving. The failure occurred once again. The vehicle was taken to an authorized dealer but they were unable to diagnose the failure. The vehicle was not repaired. The failure and current mileages were 700.

- Munster, IN, USA