P0751 Ford -

Question

got a code po751 and po972 2005 ford focus 2.0l came in with a runaway 4th gear with a code po750 completely rebuilt trans and had a broken servo pin replace all bushings with the omega bushing kit and replaced solenoid a new converter all new clutches and bonded pistons test drove and resulted in same problem checked out valve body cleaned and checked all valves, all ok but problem still exists any ideas