artic-z28

just got done installing a new tranny mount and i asked my buddy to tighten up the bolt ,well he tightened as mush as he could .Still has a little play and needs to be tightned more. at the time i was installing my new tranny and he fail to tell me this after i dropped the car. So ,at idel it make a banging sound.. Now, I had some problems eariler with the tranny .. it has good pump pressure .. would my car still drive if the pump was going out and what exactally does a pump sound like if it is going out ?