2000 Chevy Blazer no brakes

2000 CHEVROLET BLAZER
10,400 MILES • 6 CYL • 4WD • AUTOMATIC
Avatar
RANGERDANGER17
  • MEMBER
  • 224 POSTS
we have replaced the rear calipers and the master cylinder but the brake pedal still dont work we have bleed a gallon of fluid through the system

what is wrong with it is it a bad master cylinder again or the front calipers
Dec 28, 2008 at 10:31 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi:
Does the pedal go to the floor? When you replaced the master cylender, was the pushrod adjustable?

Let me know.
Joe
Mar 19, 2021 at 11:57 AM
Advertisement
Avatar
RANGERDANGER17
  • MEMBER
  • 224 POSTS
it goes almost to the floor and stops then the brakes stop and i goes the rest of the way to the floor

i dont think it is adjustable cause but i dont think that the problem


but some how air keeps getting in the system cause we bleed them and we get all the air out then we come back and there is still alittle air in the system
Mar 19, 2021 at 11:57 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi:
Can you pump the pedal to get a normal pedal? If so, does it then slowly go to the floor? If so, I would say you have a bad master cylender again. If you can pump it up and then it slowly goes to the floor, something is bypassing in the master cylender allowing the fluid to get past the piston.

Let me know if this sounds like your problem.

Joe
Mar 19, 2021 at 11:57 AM
Avatar
RANGERDANGER17
  • MEMBER
  • 224 POSTS
no pumping it does nothing i think i figured it out

its either the front calipers or air in master clyinder that i didnt get out when i bench bled it so i going to try that but thank for the help
Mar 19, 2021 at 11:57 AM
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Are the front calipers leaking fluid? Also, if you ran a gallon of fluid through the system, I would think you got the air out of the master cylender. regardless, let me know what happens. Check the rubber brake hoses to make sure they aren't expanding when you hit the brakes.

Joe
Mar 19, 2021 at 11:57 AM
Avatar
RANGERDANGER17
  • MEMBER
  • 224 POSTS
thats wat i thought we keep getting air out so we kept bleeding and we stop getting air so we stopped but why would the brake hoses be expanding does that mean they are bad the front calipers are not leaking

i will tell wat i find out thanks
Mar 19, 2021 at 11:57 AM
Avatar
RANGERDANGER17
  • MEMBER
  • 224 POSTS
it was air in the line i test drove it after about five min the pedal was a lot better so thanks anyways
Mar 19, 2021 at 11:57 AM