When i tried to replace the clutch fluid in my 2001 Civic DX the first time my friend pushed the clutch pedal with the bleed valve open, the pedal went to the floor and never came back by itself. Tried bumping it a few times and nothing changed. The pedal still went to the floor with no return. I thought that the master clutch cylinder had gone bad, so I replaced it. Replacing the master clutch cylinder did not fix the problem. This is the first time I am trying to change the clutch fluid in a honda, but I cannot get any pressure build-up. How long does it take to build pressure in the clutch system? Thank you in advance for any responces.