Looking for help please! I have had a clutch problem, diagnosed as probable slave cylinder, gearbox out today, no obvious faults with anything but have noticed the little unit/joint below the servo in the photo has a damp look. No loss of fluid but possibly air being drawn could cause the problem? Difficulty getting gears, particularlyfirst & reverse, pedal sticking down, low pedal. Can anyone please tell me what this thing is/does. Are they available & can I bypass it?!! Thank you!