So, for the past 4 or 5 months my brakes are either perfect or they go to the floor. Ive put new rear lines in and a whole bunch of other ****, new master cylinder, rear wheel cylinders, everything.

So everytime I go wheeling and flex a little the brakes go to the floor when i leave the woods. Then the next day the brakes will be mint buy then slowly go to the floor again and range from good to bad each day.

The hell is going on here?

 

Acts like a master cylinder bypassing internally.

 

X2. Look for signs of brake fluid leaking out of the back of the master cylinder.

 

Im not losing 1 drop of brake fluid and I didnt see any leaks, the paint is bubbling right there but im sure its from past spills or problems

 

Bump?

 

Let me know when u get it figured out. I have the same problem.

 

by passing does not mean leaking it by passes internaly return it ...

 

Okay so my master cylinder is under warranty and I picked up a new one

The instructions mention a proportioning valve and I remember last time I put the master cylonder in i didnt touch that

I cant figure out how to keep it "open" because i dont have a tool?