I'm having an issue with the clutch hydraulic fluid building up pressure to a point where the clutch will not even release. If I open the bleeder valve on the slave, it releases the pressure and everything is ok for a while. When the pressure comes back, the clutch pedal is under pressure and right at the top of its travel. Has anyone experience this? It is a 1993 Civic CX.

 

Adjust the pedal or linkage so the master cylinder can return to the fully out position (the push rod goes slack). If that isn't it, replace master cylinder.

 

I'll give that a try. I replaced the master cylinder before this started to happen. Perhaps I don't have the push rod adjusted properly or I have a faulty master. I'm not sure how the pressure is normally let off.

 

Normally, when the master cylinder is all the way out, the piston uncovers a hole which allows the fluid to return to the reservoir. Once the piston starts to move in, the hole is covered up allowing pressure to build.