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Both front driver and passenger brakes stick.

Tiny
ANNWHIT
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • 96,000 MILES
Both front driver and passenger brakes stick and will not release the wheels get real hot cant touch. Have gotten so hot they melted ABS wires so had to replace them.I have replaced the brake pads, calipers, rubber brake lines and master cylender new break fluid. What could it be.
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Thursday, February 28th, 2013 AT 9:40 PM

4 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
Next time they lock up, loosen the steel lines at the master cylinder. If that lets them release, the brake fluid was contaminated with a petroleum product. That will be a very expensive repair. If that appears to be the cause, get the brakes to lock up again, then loosen the mounting nuts for the master cylinder and pull it forward from the power booster 1/8". If THAT lets them release, check the adjustment of the brake light switch or for something else holding the brake pedal down a little.

If loosening the lines at the master cylinder doesn't help, loosen them at the ABS hydraulic controller. If that is what's holding the brake fluid under pressure, replace the controller.
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Monday, March 15th, 2021 AT 11:33 AM
Tiny
ANNWHIT
  • MEMBER
  • 3 POSTS
Why can't I bleed the back lines
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Monday, March 15th, 2021 AT 11:33 AM
Tiny
CARADIODOC
  • MECHANIC
  • 33,752 POSTS
What are you doing or what isn't working? Are the bleeder screws plugged with dirt? Does brake fluid come out if you push the brake pedal?
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Monday, March 15th, 2021 AT 11:33 AM
Tiny
ANNWHIT
  • MEMBER
  • 3 POSTS
Put new master cylinder on bleeding brakes then back ones just quit pushing out fluid. I adjusted the booster rod works now.
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Monday, March 15th, 2021 AT 11:33 AM

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