Question about 1991 Honda Civic

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88 CRX,BRAKE PEDAL TO FLOOR AFTER SITTING A COUPLE OF WEEKS,REPLACED MASTER CYLINDER AND BENCH BLED AND BLED AGAIN ON CAR AND AT WHEELS. STILL GOES TO FLOOR.CAN PUMP UP AND HOLD PRESSURE,UNTIL YOU LET OFF AND GOES TO FLOOR AGAIN.IS IT POSSIBLE FOR PROPORTIONING VALVE?

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  • cowpie529 Jul 21, 2009

    already put on two.

  • cowpie529 Jul 22, 2009

    o'reileys. both were new. not rebuilt

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  • Master
  • 1,071 Answers

If it was a used one or autozone or advance special get a new one from napa

Posted on Jul 21, 2009

  • paul campbell Jul 21, 2009

    where are you buying them from

  • paul campbell Jul 23, 2009

    you either have a leak somewhere or possibly not have the brakes bled thoroughly the proportioning valve only changes brake percentage front versus rear so it is highly unlikely that is bad or would even cause this

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