hi have just well three weeks ago bought a corsa b its a 1.5 td bit noisey and tatty but it was cheep to get me out of a hole ! . well now in another hole cause i dont know whats wrong ???

well the cluch peddel when pressed you can feel a slow vibrating or knocking feeling but now this morning the cluch peddel went strait to the floor and there it stayed . i have looked to see if it was the cable but it seems not as if i uncuppel it from the fork ( where it joins the top of the gearbox ) i can pull the cable taught or tight and the peddel for that time i hold it sitts back where it is normaly . but this fork thing sorry dont know its tecknical name seems to be free to move is this right .

well thanks in advance for any help and advise you all can give