I just purchased a 1987 900 Turbo convertible, my first Saab. The engine runs great, a little clunky on the suspension. The clutch pedal drops to the floor board with no effort and springs right back up. I bled the clutch and worked great for 60 miles, I did it again and it ran for about 6 miles. Also when I depress the brake pedal there is a hissing sound, a vacuum sort of sound. That noise I am guessing is a vacuum line that must go to the master cylinder. As far as the clutch goes I am thinking of buying a bleeder pump and really bleeding the system. Any suggestions?