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No brakes after replacing the Master cylinder

Tiny
PAMELA STOWERS
  • MEMBER
  • 2001 FORD FOCUS
  • 190,000 MILES
Just put on new master cylinder. It said do not bench bleed. Have no pedal and no pressure at bleeder valves.
Saturday, January 21st, 2017 AT 5:10 PM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
What said to not bench-bleed it? How do you expect to get the air out?
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Monday, March 15th, 2021 AT 7:17 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,445 POSTS
Have seen the same warning on a couple master cylinders. I ignore it.
Either pull the master back off, bleed it and then bleed the rest of the system, or pressure bleed the system (you could try gravity bleeding but you may still end up with air in the master).
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Monday, March 15th, 2021 AT 7:17 PM

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