While getting on interstate my 2017 Expedition el 4X4 was shifting and coming up to highway speed, when it seemed to run rough and felt like it missed a shift. I let off gas pedal, engine roughness temporarily went away. Now I'm getting closer to getting on highway, applied gas again and engine got rough running again and tool symbol appeared on dash. I lost all acceleration and power to wheels while trying to enter an interstate. Very dangerous and life threatening if I did not have a long shoulder to pull off on. Pulled over stopped engine. Let sit for 5 or so mins. Started up and tool symbol was gone. Got on highway up to speed this time then same thing happened again. Rough running, lost all power to wheels, tool symbol appeared again but got the check engine light this time. Luckily I was passing an exit and had time to get off interstate 77 before I got run over from behind. Stopped N restarted. Got truck to my mechanic and they pulled a throttle body code on the truck. I had them reset code to see if it happens again because I have an ally extended warranty which we'll see how using that goes. I am driving truck with less issues trying to get code to appear again to take to dealer for a fix. Have gotten the tool light to come on 2X but no check engine yet.

- Denver, NC, USA