Loosing Fluid Overnight

[DirtyDan]

Lately, my clutch fluid reservoir will lose almost all of the fluid out of it but only overnight. It'll be fine for 3 or 4 days, and then 1 morning, i'll get in and the clutch pedal will only have about an inch of travel before it hits the floor. Put fluid back in it and its fine. Really hoping it's not a slave cylinder.

 

[sblake01]

If it's leaking it's either the slave, the master or the line.....

 

[adsm08]

And I generally like to replace those three parts as a set. Fewer headaches that way.