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Brake Repair - pressure problem

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Old Sep 7, 2024 | 04:19 PM
  #1  
rappo999's Avatar
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Overlanding
Joined: Sep 2012
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From: Philadelphia, PA
Default Brake Repair - pressure problem

Hi. Seeking some guidance please.
2001 Disco2 good shape generally.
Front left brake line corroded through near the flex line connection. Replaced hard line and flex line. All good. No leaks.
While messing with brakes figured I would replace master cylinder, it looked old and rusty, brakes were never great.
Installed and seems OK. Primed the new master cyl by loosening the 2 lines and stepping on pedal. Bled 4 corners with hand vac pump. Replaced bleed screws.
With the car off the brake pedal is solid and has good pressure. With car on, pedal is soft and goes to the floor. Brake light on. Any suggestions? Thank you in advance.
 
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Old Sep 7, 2024 | 11:05 PM
  #2  
mollusc's Avatar
Camel Trophy
Joined: Nov 2015
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From: Staten Island, NY
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You need to power bleed the ABS unit. Plenty of threads on here telling you to do it.
 
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Old Sep 8, 2024 | 04:41 PM
  #3  
rappo999's Avatar
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Overlanding
Joined: Sep 2012
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From: Philadelphia, PA
Default All fixed.

Thank you.
Combo vac leak around new master cylinder and needed proper bleed. All sorted. Appreciate the help.
 
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Old Sep 8, 2024 | 07:06 PM
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Harvlr's Avatar
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From: British Columbia Canada
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Great to hear!
 
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