Clutch Master or Slave Cylinder Problem

[TexasTerp]

on my e30, my clutch pedal has consistent pressure when I press the pedal down/in but it loses pressure once in and doesn't rebound.

iirc, when my e36 slave died the pedal had no pressure at all. but that was a long while ago.

Which do I need to replace: master or slave cylinder ?

[TurboJake]

Well, it could be either. The symptoms for either going bad are exactly the same. So just replace both.

[TexasTerp]

I'm about to take the slave cylinder off and test it. At least that's easier than taking out the master cylinder for the time being

[blunttech]

just do them both The other is going to fail shortly after you introduce a new part to the system

[ST1G]

Yeah, it's really not that hard to change the master. Just takes a little bit of time. My pedal box broke the other day and had to pull it out and re-weld it. I bet you could replace the master in 1/4 the time.

[jlevie]

If there are no leaks at the slave or soft line, the master cylinder is bad. Given the probable age, replace the slave and the soft line along with the master.

[TexasTerp]

I just ordered new slave and master cylinders. Hopefully they should get here in a few days and I can get it back on the road.

Thanks y'all!