Hi. I have a 2004 F350 6.0 400000km. I was driving up to my buddy's house awhile ago going 120km/H on the highway. Came around the corner and stepped on the pedal and nothing no rpm movement or engine response.Put it in park and it would rev right up. It does not even in reverse or any drive gear. Got the truck towed home. I scaned it last night and got one code. P1780 Trans control switch ( O/D cancel ). I am hoping that someone else had the same problem and fixed it. Any idea helps. I also switched out the pedal assembly hoping thats why the there was no reponce but it did not change anything. Thanks. Truck is all stock.