Mechanics

BRAKE FADE

1995 Ford F-350 • 150,000 miles


replaced pads, calipers, rotors, mc, rear shoes. Machined rotors & drums. Have firm pedel until I start engine then it goes to floor. Also bled rabs valve. I blocked both front brake hoses and it maintained good pedal with engine running. What to do?
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Howard elliott
December 7, 2011.



Sounds like master or air in front parts.

Tiny
Fixitmr
Dec 7, 2011.