Quote:
Originally Posted by 1972RedNeck
Pulled the drums, the rear brakes look to be almost new. Pulled the rubber caps back on the wheel cylinders and they are dry as a bone.
Pulled the sender out of the proportioning valve and there is no fluid leakage there either.
Still can't get the master cylinder to bleed out.
Thoughts?
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I don't know, one thing you could try is to remove one brake line from the master (the reservoir that is getting filled up), install a short pipe back into the master (just like you're bench bleeding).
Have a helper apply the brakes & look for fluid coming out of the disconnected brake line (this will turn on your brake light) - no fluid should come out, if it does then the combo valve is bad.
I know you pulled the switch & it was dry but, there are only two parts in the system that will allow one reservoir to go low & fill up the other, the master (you replaced) & the combo valve.
One more thought, the new master could be bad. What are the odds it would fail in the same way your old one did? Keep us posted.