Pulled plug on side of transmission for pressure test. Not pumping fluid. Is the pump bad

What is your question?

I changed all the valve body and parts. Truck drove one day the next day no move. If I increase pedal it will go in gear . Let up pedal back to no move. I was going to pressure test from side of trans. But no pressure

How long has your 1993 GMC C1500 had this problem?

Just started