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Brakes 1972 Ford f100

Tiny
STEVESTATHAM
  • MEMBER
  • 1972 FORD
Have replaced all wheel cylinders and master cylinder and still no brakes. Any way to test proportional valve to see if it is bad?
Saturday, November 3rd, 2007 AT 10:43 AM

2 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Was the Master bench bled? And why did you do the wheel cyls? Initial problem was? Sometimes the proportoning valve will leak, other times it's needle won't move. Usually it results in no pressure to the rear brakes. Let me know exactly what's been done so far.
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Saturday, November 3rd, 2007 AT 12:57 PM
Tiny
STEVESTATHAM
  • MEMBER
  • 2 POSTS
The master was bench bled. The wheel cylinders were all origanal and leaking. Original problem started after fluid all leaked out of old master cylinder and truck sat up about a month. When I bled brakes after replacing all cyliders still had no brakes, and needle in valve does not seem to move.
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Sunday, November 4th, 2007 AT 7:32 PM

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