Check Engine Light On problems of the 2010 Lincoln MKT

Getting on to the interstate and tried to accelerate and car started knocking, and shudder had lose of power. This has happened on several other occasions. No check engine lights come on.

When I first got the car in 2010, the first incident occurred while I was driving about 40 mph. I would step on the accelerator and the car would jerk and the rpm's would rev up and nothing would happen. On an oil change service, I reported this to the dealer and they said they could not reproduce the incident and nothing showed up on the computer record chip. On many occasions after, the same thing would happen, I would step on the accelerator and the car would jerk furiously and the rpm's would rev up and nothing would happen. . . The car was at a standstill. This would happen while I was sitting at a traffic light or trying to make a left turn. If I was trying to make a left turn and this occurred, I could of gotten killed if the car did not move during the middle of the turn. . . . Luckily there was no oncoming traffic when it happened. I reported this may times to different Lincoln dealers in the metro detroit area. . . They all said it could not be reproduced. . . They made me feel as though I was crazy for reporting this. I would even go to the dealer on the day it would happen so they could check the computer chip within 24 hours of the incident and still nothing showed up. Finally, a check engine light came on about a year ago, and the dealer finally determined that it was a speed sensor that went bad. The dealer could not detect the problem if the speed sensor was partially bad, it had to fully go bad in order for it to be detected. This was very frustrating and cost me a lot of time, money, energy and mental anguish wondering if I was going to die because the car would not work while I was turning or in the middle of traffic.