Clutch to the Floor

[Project2G]

So I picked up a 97 Eclipse gst 5 speed with 95xxx miles a month ago from a used dealership in San Diego, and now I'm having a clutch issue. Almost 7 out of 10 times when I shift into reverse it grind (clutch issue not tranny) because it's almost like the clutch is not pushed in all the way even though I push the clutch to the floor. Yesterday and today when I was driving and puched in the clutch the pedal just stayed to the floor?? I had to pick it up with my hand then everything was fine. Both times this happened I was pulling to a parking lot and I'm just affraid it's going to happen why I'm driving dow the road or something. I bleed the clutch yesterday thinking I had air in the lines and the fluid was almost black.. Like they never changed the fluid before. =( Someone told me it's probably the Pressure plate. There is some play in the shift fork. I have also heard when the clutch pedal sticks to the floor when turning it could be crankwalk?? Any imput would be great thanks.