Weird Brake Issue

[EggRaid]

Hey Gang,

Brakes have been bad. Pedal has TONS of travel. I replaced pads and rotors and the pedal never came up.

I went on to "Step Two" which was bleeding the brakes.

This was something I have never encountered. The first one I did was the
right rear: Nothing came out. I had my S.O. pumping the brakes 5 times, hold.
Nothing. Finally, I got a VERY LITTLE dribble of fluid to come out. But
that isn't right.

Move to the left rear. The fluid SHOOTS out great. After a few more times,
move up to the front right. Fluid SHOOTS out great.

Get to the front Left...Nothing. NEVER a DRIBBLE of fluid.

The pedal goes all the way to the floor. I backed down the driveway to see
how it would stop...I could slam on the brake pedal and it would still move
another few feet before resting.

Obviously, the left front and the right rear aren't getting the
juice/pressure they need. What would this be? Is this for certain Master
Cylinder?

Thanks gang,

ER

[KC Ron Carter]

All wheels must bleed or the air will affect them all.

I would suggest a pressure bleeder as the only real deal way to fix this.

Cheaper than a lawyer.

Any air bubble can and will seek any high point to stay, so if you leave air in the line to the R/R it can travel back to the priority valve or even farther.

Later,

[crash8168]

i dont quite understand your first statement, you had good pedal before you worked on it? in that case you always go back over what you did first. If you are saying the pedal went down before you worked on it you master cylinder is most likely bad since the system is split diagonally and you have a problem diagonally.

[EggRaid]

Replacing the M/C did the trick! I bled the brakes with the vacuum hand bleeder. That was awesome! I didn't have to wait for the wife to come home from work.

Once that was done, the brakes feel like brand new. Nice high, responsive pedal.

Thanks!

ER