Strange clutch issue

FIXED???

 

I had the same issues, replaced both the master and slave cylinder and put a SS flex line in while it was all apart. Once I pulled the OEM master cyl off I took it apart and the O ring on the piston inside was torn thus letting air in when you press the clutch and not allowing the pressure to let the clutch pedal ride back up.. evreythings been good to go since then! But it could be as simple as a .40 o ring.. Worth pulling it apart to see anyway while your all there

 

I replaced the master and slave cylinders and so far it seems to have fixed my issues. It was an intermitten problem so the jury is still out. I really think I got it though. Thanks for all of your help guys. By the way, I found the hose he was talking about