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Brake problems after replacing Master cylinder

Tiny
JEANNIE SATORIS
  • MEMBER
  • 2000 CHEVROLET BLAZER
  • 4.3L
  • 6 CYL
  • RWD
  • AUTOMATIC
  • 165,000 MILES
Replaced master cylinder. Bled brakes but no braking action. Brake pedal soft and goes to floor. We have repeated the process with no luck. What could be the problem?
Saturday, June 4th, 2016 AT 3:21 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Air in system especially with abs. Rent a power bleeder from a rent shop and try bleeding a couple of quarts through system if it still does it a professional will need to hook up a professional grade scanner to open all valves in abs unit.
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Saturday, June 4th, 2016 AT 3:40 PM

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