Running about 3300 rpm s at 50 mph.this happened once befor and i played with the cable coming from the throdle body and pluged and unpluged the plug going to the same module the cable goes into (above trans -below air filter box) and it ran fine for 6-8 months.it re-started intermitenly. after driving about 1/2 an hour,it wont shift.maybe you can help me name this part-shift cable goes into it from the throdle body?

Cars & Trucks - Ford - F-250 - 1995 Ford F250