Silverado ABS and Brake light come on

Tiny
COPATLARGE
  • MEMBER
  • CHEVROLET SILVERADO
2001 Silverado
4X4
8.1 liter
120,000 miles

My truck has an intermitent problem. Sometimes i'll be driving and the ABS and Brake light come on at the same time. Even when not using the brakes. Ran codes, both shops telling me nothing shows up on the computer. Everything still works fine, however I need to figure it out so as not to unexpectedly have an accident.
Thanks
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Wednesday, July 4th, 2007 AT 1:35 PM

5 Replies

Tiny
DENNYP
  • EXPERT
Does the abs pump start running on its own when the lights come on?
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Saturday, September 29th, 2007 AT 4:33 PM
Tiny
COPATLARGE
  • MEMBER
[quote="dennyp"][quote="Copatlarge"]2001 Silverado
4X4
8.1 liter
120,000 miles

That I don't know. I don't know how to check that or where to even find the abs sensors to check them.
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Saturday, September 29th, 2007 AT 6:00 PM
Tiny
DENNYP
  • EXPERT
[quote="Copatlarge"][quote="dennyp"]if the pump runs, you will be able to hear it. It makes a grinding type noise and makes it difficult to stop when braking.
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Saturday, September 29th, 2007 AT 7:35 PM
Tiny
COPATLARGE
  • MEMBER
It never does that, and the brakes aren't affected. They seem the same whether the lights are on or off. I read somewhere that it might be a ECBM but it's not having any stopping problems or difference at all.
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Monday, October 1st, 2007 AT 5:06 PM
Tiny
DENNYP
  • EXPERT
You will probably need a good scan tool to isolate this problem.
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Monday, October 1st, 2007 AT 5:47 PM

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