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Front brakes lock when attempting to brake

Tiny
JIMCAR
  • MEMBER
  • 1996 CHEVROLET ASTRO
  • 145,000 MILES
Front brakes locking when I press the brakes and do not release. I changed the master cylinder and the hydro-boost and the problem still exists. Please some body what I can do?
Tuesday, February 6th, 2018 AT 2:35 AM

5 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

Check the front brake hoses that attach to the calipers. It is common for them to become restricted and not allow the brake pads to release.

Roy
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Tuesday, February 6th, 2018 AT 2:41 AM
Tiny
JIMCAR
  • MEMBER
  • 3 POSTS
Thanks very much. I will check and let you know.
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Tuesday, February 6th, 2018 AT 3:12 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You are welcome. Keep us updated.

Roy
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Tuesday, February 6th, 2018 AT 3:21 AM
Tiny
JIMCAR
  • MEMBER
  • 3 POSTS
In the same van if the proportion valve is not good can that be what causes the front brakes to lock?
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Wednesday, February 7th, 2018 AT 5:09 AM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Yes it can, but it controls two wheels so the other wheel which in your case would be the opposite rear.

Roy
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Wednesday, February 7th, 2018 AT 6:09 AM

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