my clutch was fine untill one day i drove it like for 200 miles, and it left me stranded, the clutch was all the way down to the floor. I cheked the clutch fluid and it was full. i bled the system it seamed to work, but if i drive it for like 25 miles straight the clutch pedal starts to feel softer like it wants to fall to the floor. and when i brake hard the clutch pedal gets hard again so WTF? is the clutch in any way conected to the brake booster? any one know what it could be?
thanks

 

Had a similar problem.

I just rebuilt my slave and master cylinders. Also replaced clutch line w/ a SS one from Rx7.com. But they are a ton cheaper off mazdatrix.

If you don't have money / time for rebuild. Just look at the line and make sure there are no leaks.

Good luck.