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1994 Buick LeSabre Question: Where is the proportioner valves on this vehicle?

 

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michhl, Jersey City, NJ, September 26, 2013, 10:54
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I am having diagonal right front and left rear brake failure. I was told that it could be a proportioner valve
failure problem.

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  • Answer #1

    Miles Auto Services (884 Answers) , Richmond, VA - (804) 885-4176
    milesauto September 26, 2013, 11:39
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    That valve can fail but its very rare. It is typically located below master cylinder mounted on chassy frame.

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    michhl, September 28, 2013, 05:59
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    Thank you. I did find where the valves are located on my vehicle.

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  • Answer #2

    pushrod September 26, 2013, 18:50
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    Define brake failure on right front and left rear. No brakes on those two? Brakes locking up? It's not the porp. valve!

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    michhl, September 28, 2013, 05:56
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    Yes,no brakes on left rear and right front. Did have a bad caliper on right front. Replaced and still no brakes. Left front and right rear fine. I don't know.

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    pushrod, September 28, 2013, 07:26
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    Poor/low brake pedal?

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    michhl, November 09, 2013, 08:58
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    Yes, brake pedal low and sound like air flowing through when pedal compressed. Had good brake pressure and then lost again. Could it be booster?

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    pushrod, November 09, 2013, 09:12
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    No! Booster can NOT cause LOW pedal. Seek a mechanic's hands on help. It is time for that!

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    michhl, November 09, 2013, 09:58
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    ok. Was leaning towards that. I've did all I can do on my own. Thanks.

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    pushrod, November 09, 2013, 10:06
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     Master

    Smart move! Hope you get it back on the road. Cant play around much with the brakes!

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    michhl, November 10, 2013, 14:58
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    Your right about that. Thanks for your help. I'll stick to things I can do.

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