brake line won't bleed
 

hi everyone. merry Christmas. sorry if this is somewhere else, but I have looked and found nothing. maybe I was not posting correctly or something.
I have an 04 maxima that I am trying to bleed the front driver side caliper. no fluid is coming out. I tried to gravity bleed at first and nothing is coming out. where is the fluid. do I need to bleed the abs module or something? the pedal is rock hard. do I need to start the car up and bleed the brakes with the car running? this should not be this hard. I feel so dumb. I need to get this thing back on the road and it is turning into a pain.
before i took the caliper off nothing came out of the old bleeder.
any help will be awesome.