BRAKE PROPORTIONING VALVE

  • Tiny
  • marryjoe
  • 1997 Cadillac Deville
  • V8
  • FWD
  • automatic

I been searching the internet for a brake proportioning valve for a 97 cad. Deville northstar with no luck, did this car came out with one on it

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Wednesday, January 26th, 2011 AT 1:18 AM

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  • Tiny
  • factoryjack
  • Expert
  • 4,263 posts

There is no one proportioning valve. Some models had something similar in the rear circuits, particularly Eldorado, in that era. I think that the proportioning is accomplished either in the master cylinder, or the EBCM. What type of concern are you experiencing, why do you think you need a proportioning valve?

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Thursday, January 27th, 2011 AT 4:36 AM
  • Tiny
  • marryjoe
  • Member

The brake warning light want go off, the right rear wheel hard to turn, at iding brake the brake pedal slowly almost to the floor, when driving it stop ok front pads good, rear pads and master cylinder new.I blead the system with the motor running

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Friday, January 28th, 2011 AT 11:56 AM
  • Tiny
  • factoryjack
  • Expert
  • 4,263 posts

Bleeding with the engine running is not necessary, but not problem causing either. Is the brake warning light, the red brake warning light? The right rear wheel hard to turn, does it become more free when the right rear bleeder has been opened, as if perhaps it is retaining some pressure. If I am not mistaken, the red brake warning light can only illuminate under circumstances of park brake indicator issues, or fluid level(sensor) type faults. I would also speculate, that if there was a proportioning issue, it would be a front/rear balance issue, as opposed to an individual wheel hydraulic issue. Keep in mind that the park brake is integral to the rear calipers, so if opening the bleeder screw provides no freedom, it could be an issue concerning the park brakes influence on a caliper, it could also be a frozen caliper.

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Saturday, January 29th, 2011 AT 4:12 AM

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