I noticed that sometimes the pressure of my clutch pedal will change.

For example, when I rev the motor to a high enough RPM (in or out of gear), the pedal will feel significantly softer than normal.

Anyone experience this? My hydraulic system should be OK...I changed the slave not long ago. Maybe fluid level?

 

First thing I would do is check the fl00id.

 

check the fluid level, and look for leakage around the MC, inside, and out.

 

Bumped for me having the same issue.

 

How many miles does your car have? I bleed the clutch line. Check the master cylinder and than the slave.

 

I have about 45,000 on it

 

I have the same mileage as the dude above.

I checked the fluid level, and all is OK. But why does the pedal feel softer at higher RPMs? Is something working harder?