Vehicle Shudder problems of the 2011 Ford Explorer

The contact owns a 2011 Ford Explorer. While accelerating from a traffic light, the vehicle started to vibrate uncontrollably. The contact stated that the failure only occurred when driving from a complete stop or when decreasing in speed. Also, while driving 15 mph, the vehicle stalled. The contact was able to restart the vehicle. The failure only occurred once. The contact also stated that the interior lighting on the instrument panel would dim occasionally while driving. The contact stated that the failure was intermittent. The vehicle was taken to an independent mechanic to be diagnosed. The mechanic was unable to duplicate the failure. The manufacturer was not notified of the failure. The approximate failure mileage was 36,800.

While driving to work, my vehicle experience an issue with throttle response. A wrench warning light appeared and the check engine light came on. At that point, the vehicle began shuddering and the internal systems slowed the vehicle to approximately 5mph. After stopping on the shoulder of the interstate, I shut the car off, pulled the key, reinserted the key and restarted the vehicle. It started up normally, but immediately exhibited the same symptoms. I checked the owner's manual and found that the wrench warning light indicates a "powertrain fault". I contacted Ford roadside assistance and got the vehicle towed to the nearest dealership, thinking that a warning light indicating a "powertrain fault" would be covered under my powertrain warranty. The dealership diagnosed the problem as an issue with the throttle body of the vehicle, that the throttle body is not covered under the powertrain warranty, and charged me over $700 to fix the problem.