I just replaced the master clutch cylinder, and now the whole system is leaking fluids. It doesn't look like it's coming from the part I replaced, but I could just be blind.

The weird thing is, it doesn't leak when the car sits, or if you just simply pump the pedal.

It's ONLY leaking when I'm actually driving the car on roads.

Has anyone had this problem before? What solved it?

 

Where are you seeing fluid? Or are you?

 

I checked and I saw no fluids visibly pouring out of anywhere, and I listened and heard nothing either.

 

The whole system is visible from under the hood. If it is leaking you probably have a bad slave cylinder, or a leak in the line that connects the two. Both of which are cheap to replace.

 

When you replace one part on a system like this, others tend to go. I found this out last summer. I saw that my slave cylinder was leaking so I replaced it. That fixed the problem for a few days and then I left for work one day and had no clutch. Now that my new slave cylinder was holding proper pressure it blew the old rubber line. Just feel around for the fluid and if you cant find any just replace both the slave cylinder and the rubber line with a stainless braided piece.