Brakes 1972 Ford f100

Tiny
STEVESTATHAM
  • 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?

Do you
have the same problem?
Yes
No
Saturday, November 3rd, 2007 AT 10:43 AM

2 Replies

Tiny
MERLIN2021
  • EXPERT
  • 17,581 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.

Was this
answer
helpful?
Yes
No
Saturday, November 3rd, 2007 AT 12:57 PM
Tiny
STEVESTATHAM
  • MEMBER

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.

Was this
answer
helpful?
Yes
No
Sunday, November 4th, 2007 AT 7:32 PM

Please login or register to post a reply.

Other Proportioning Valve Questions