1992 Chevy Blazer Brake pedal goes to floor

Tiny
MRBILL2008
  • MEMBER
  • 1992 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 87,000 MILES
Brake pedal goes to floor on stopping after hitting a bump. Could not find any leaks in system. ABS and brake light on. Replaced master cylinder thinking internal bypassing. Bled brakes and got a stiff pedal. Started truck and same thing lights on and very low pedal. Is this an internal ABS problem, or is there a certain way to bleed this truck because of the ABS?
Friday, September 26th, 2008 AT 12:28 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You bleed the ABS after the master cylinder then the wheels.
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Friday, September 26th, 2008 AT 12:39 PM
Tiny
MRBILL2008
  • MEMBER
  • 2 POSTS
Ok trying to bleed out the ABS system and only get fluid out of one of the bleeder screws on top of the abs unit. Master cylinder is bled properly. Is this abs unit the cause?
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Monday, September 29th, 2008 AT 1:46 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What do you have on the back-Drum or Disc?No leaking on the wheels could be a bad new master cyl.
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Monday, September 29th, 2008 AT 2:44 PM

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