Car brake wont bleed on front driver side pedal goes to floor but no swirling or bubbles unde mc cap in fluid, no brake fluid leaks.?

Update:

Just trying to verify its the mc before I pull it off to plug it and test.

10 Answers

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  • 8 months ago
    Best Answer

    Could be a failing master cylinder.

  • 8 months ago

    Take the bleed nipple completely out the nipple could be blacked or the brake cylinder could be jammed .

  • M.
    Lv 7
    8 months ago

    When bleeding i observe what comes out through the bleeder screw. I never looked for swirling or bubbles in the master cylinder.

    It's possible that dirt or corrosion has plugged the bleeder.

    If the pedal goes to the floor when there is no fluid loss, then a master cylinder piston seal has failed.

  • don r
    Lv 7
    8 months ago

    Rebuild or replace the caliper.

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  • Anonymous
    8 months ago

    Bleeding brakes is either a 2 person job, with one pressing and holding the pedal while the other works the bleed screw, or it requires a pressure bleeder that pushes fluid from the wheel cylinders up to the master cylinder. You should also start with the longest line and work to the shortest line. It's not clear that you understand the procedure because you mentioned swirling and bubbling "under the master cylinder cap". Bleeding is done with that cap removed.

    So, give an update on how you're going about bleeding your brakes and next time you post a question, compose an interrogative sentence to make an actual question out of it.

  • 8 months ago

    Take the bleeder screw out to see if it's plugged up.

    If you have ABS brakes you may need a scan tool to activate the ABS pump to bleed the brakes.

    Source(s): Mitsubishi Master Tech
  • Evil C
    Lv 7
    8 months ago

    Without knowing what kind of car you have, it is difficult to give you clear advice. You could have a failing master cylinder like regerugged said, could be air in the ABS module, or if you have an older vehicle, could be the piston in the distribution block need to be re-centered.

  • J J
    Lv 7
    8 months ago

    Why pull it off to test it, test it where it is.

  • 8 months ago

    Youre on youre way to best answer for sure.

  • JetDoc
    Lv 7
    8 months ago

    That's nice. did you want to ask a question while you're here?

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