I need to bleed the line... but I can not find the vent plug to do this. I have a one line and have to bleed line. Please help me locate this plug. Thanks for your help in advance.

Look on the top of the actual oil pump. It will look like a small male reproductive organ with a hex nut at the base. Only loosen the nut when the pump is running and attach a small hose to it going to a coffee can or something to catch the oil