Brake problems

Tiny
ROADHOUSEDOG
  • 1996 CHEVROLET TRUCK
  • V8
  • 2WD
  • AUTOMATIC
  • 230,000 MILES

Just replaced the master cylinder and brake booster on a 96 chevy P/U - With truck off brake pedal is firm but when engine is started brake pedal goes to floor. - Bled brakes (three bottles worth- no bubbles) Can you help?

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Sunday, July 17th, 2011 AT 6:50 PM

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Tiny
CADIEMAN
  • MEMBER

Bleed the master then you can gravity bleed starting in the r/r then l/r then r/f and l/f. Remove the master cylinder cover then fill. Looson the bleeder when you see all fluid and no air bubbles tighten the bleeder and repeat.

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Sunday, July 17th, 2011 AT 7:18 PM

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