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Can’t bleed brakes

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    Topic
  • #488027
    AndrewAndrew
    Participant

      I have a 1993 Acura legend. I changed both front calipers and mc. After bench bleeding the mc and bleeding the rr, lr and then when I tried to bleed the fr very little fluid would come out the bleed screw. I then bench bleed the mc and tried to bleed the fr again and could not get any fluid to move out the bleed screw. I have tried two mc and still the pedal goes to the floor. Any recommendation? Could I have something wrong with the abs?

    Viewing 9 replies - 1 through 9 (of 9 total)
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    • #488039
      college mancollege man
      Moderator

        start with the LF.then RF Open the bleeder all the way and see if it
        gravity bleeds.you could also crack the line at the caliper and
        gravity it that way or pump it to get the fluid moving.The calipers
        are empty from being new.

        #488049
        AndrewAndrew
        Participant

          I tried to use a vacuum pump but still no fluid. I also disconnected the line from the caliper to see if fluid would move still nothing.

          #488051
          CharlesCharles
          Participant

            Keep going back toward the MC till you get flow. I have had the rubber lines between the frame and wheel cylinder scale on the inside and prevent fluid flow.

            #488055
            John B KobberstadJohn B Kobberstad
            Participant

              Your flex brake lines to the caliper may be swollen inside and not allowing the fluid the proper flow it needs. Remove them from the steel lines and see how the fluid flows. If there is good flow from the steel line when they are removed, replace the flex line. If you have ABS you may need a good scanner to help you do the bleed.

              #488057
              AndrewAndrew
              Participant

                I will check the flex lines tomorrow. Could there be anything wrong with an abs seleniod

                #488135
                dredre
                Participant

                  Happen to my car not too long ago. It was my flex lines

                  #488207
                  AndrewAndrew
                  Participant

                    I disconnected the flex line from the solid line and still no real fluid movement so I bought a new mc instead of a ref. Bleeding was better but the pedal would still go down to the floor. So I test drove very cautiously with my hand on the emergency brake. The car would stop but not right away. I than pulled the two fuses for the abs and test drove again. Now I had brakes that worked but without abs. I bleed the brakes again and this time it bleed normally. After good brake bleeding I reinstalled the abs fuses and preformed two and quick stops described in your video and now I have working brakes with a solid brake

                    #488209
                    college mancollege man
                    Moderator

                      Glad you got your brakes back.Thanks for the update.

                      #490266
                      EricTheCarGuy 1EricTheCarGuy
                      Keymaster

                        Honda brake bleeding procedure is actually LF, RR, RF, LR. In addition this video might be helpful.

                        I’ll also add that I’ve had experience with some aftermarket parts that just don’t work on Hondas. It may be the parts you’re using.

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