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Brake Pressure Modulator Valve & ABS System

Tiny
SOULJAH1
  • MEMBER
  • 2005 CHEVROLET EXPRESS
  • V8
  • AUTOMATIC
  • 142,000 MILES
Hi,

Is it okay to bypass the brake pressure modulator valve and only use my brakes? Basically, is the brake pressure modulator valve necessary for the brakes or is it ABS related? Thank you.
Monday, August 22nd, 2011 AT 8:56 PM

4 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
It isn't necessary but once installed, the system uses different components than a system with no ABS so you can't just eliminate it. You shouldn't have to unless it has internal valve problems. If it's just an electrical problem, you will have normal brakes anyway.
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Monday, August 22nd, 2011 AT 9:38 PM
Tiny
SOULJAH1
  • MEMBER
  • 8 POSTS
Well it's just that I was told the system was contaminated with a petroleum product so I had to change all wheel calipers, caliper hoses, master cylinder, and all rubber. The brake pressure modulator valve is the only thing that I have not changed out and was wondering if it necessary to do so or can I just bypass it. Thank you.
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Monday, August 22nd, 2011 AT 9:55 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
No, you can't bypass it but you may not have a problem if you flushed the system real good after replacing the rest of the parts.
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Monday, August 22nd, 2011 AT 10:12 PM
Tiny
SOULJAH1
  • MEMBER
  • 8 POSTS
Okay. Thank you very much because you just confirmed my first mind. Have a great day!
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Monday, August 22nd, 2011 AT 10:23 PM

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