Front brakes lock when attempting to brake

1996 CHEVROLET ASTRO
145,000 MILES
Avatar
JIMCAR
  • MEMBER
  • 3 POSTS
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?
Feb 6, 2018 at 2:35 AM
Advertisement
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
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
Feb 6, 2018 at 2:41 AM
Avatar
JIMCAR
  • MEMBER
  • 3 POSTS
Thanks very much. I will check and let you know .
Feb 6, 2018 at 3:12 AM
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
You are welcome. keep us updated.

Roy
Feb 6, 2018 at 3:21 AM
Avatar
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?
Feb 7, 2018 at 5:09 AM
Avatar
ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
yes it can, but it controls two wheels so the other wheel which in your case would be the opposite rear.

Roy
Feb 7, 2018 at 6:09 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.