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My brakes make like clunking sound and then the anti lock light comes on?

Tiny
JANEY1954
  • MEMBER
  • 2002 BUICK CENTURY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 60,000 MILES
I got in my car yesterday am to go to work. Alls fine until I come to the stop sign and my brakes make like clunking sound and then the anti lock light comes on. I am single woman and dont want to get hosed if I go to the repair shop. Any suggestions first? Could this be caused by low brake fluid? Master cylinder? Please help. Thanks.
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Wednesday, October 29th, 2008 AT 8:24 AM

3 Replies

Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
This could be a few things it is hard to tell. However it could be a wheel speed sensor (hub replacement) it could be the anti lock controller (buy a wrecking yard one), It could be master cyl. How do the brakes feel? Do they feel fairly normal?
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Wednesday, June 9th, 2021 AT 12:24 PM
Tiny
JANEY1954
  • MEMBER
  • 2 POSTS
The brakes feel okay otherwise. If I stop the car and turn it off the light goes out but then if I have to brake hard at all then the clunk sounds and the light comes back on.
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Wednesday, June 9th, 2021 AT 12:24 PM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
I sounds like you have a controller problem. This video will help us find out for sure.

https://youtu.be/rTtAnsOlZU4
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Wednesday, June 9th, 2021 AT 12:24 PM

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