I am having an issue with my 97 powerstroke. the transmission was just rebuilt. the torque converter is brand new. just replaced the mlps. but the truck will not go in gear. the idle doesnt go up or down when put in gear. everything is in its right place according to the book. fluid is fine. everything appears to be fine. I am a mechanic and cant figure it out. someone please give me a hand. any advice would be great. Thanks

 

neutral safety switch?