Zach-
This is what I'd do at this point. And I want to say I
can really appreciate all the work you've done so far and the patience
and perserverance it's taken so I will do my best not to send you on a
wild goosechase.
What I would do is this:
1) Disconnect the line for the front brakes from the master cylinder.
2)
Connect a long clear hose to it and place its end in a jam jar w/
alittle brake fluid in it like you are going to bleed brakes. Cover the
top of the jar with some clean old rags.
3) Connect another hose to the front caliper that sticks' bleed nipple.
4) Connect air supply to caliper hose. (If you don't have an air supply a bicycle pump will work)
5) Open caliper bleed nipple and using it like a faucet by
opening and closing it slightly, blow air through it backflushing it
(CAREFULL ABOUT SPLASHING BRAKE FLUID ALL OVER THE PLACE AT THE MASTER
CYLINDER END!!!!)
6) Do this until only air comes out and make sure the air flows with no resistance-none at all.
7) Check the contents of the jam jar.The brake fluid will have a
ton of bubbles in it so you might want to wait for them to dissipate.
You will be looking for any kind of debris (A POLITE TERM) that has
dislodged hopefully clearing the mystery check valve out of the
line.
Once you have done the above procedure you will have (In my opinion)
eliminated anything from thatend of the line out to the wheel as the
problem
Re-install the good pressure warning switch and the
brake line and re- bleed the brakes using the Emmy Award Winning "Mr.
MOTORBILL" method described above. Centralize the pressure warning
switch as described in the manual and may God smile down upon
thee! AMEN!
If you still have a problem at this point it has got to be the new master cylinder.
The brakes worked fine prior to installing it with the exception of the leaking....Don't forget that!
Before doing any work let's wait for feedback from Motorbill et al.
LCJUTILA