Brake problem - 1992 Deville with soft pedal
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Brake problem - 1992 Deville with soft pedal in Past Cadillac Vehicle Discussion; replaced the master cylinder and wheel cylinder have bleed breaks still almost gooes to the floor but the breaks seems ...
  1. #1
    old tin man is offline Cadillac Owners Member
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    Brake problem - 1992 Deville with soft pedal

    replaced the master cylinder and wheel cylinder have bleed breaks still almost gooes to the floor but the breaks seems to work that sound right

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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: break prob

    No, that is not right. If you can pump the pedal up, you still have air in the system someplace. Did you bench bleed the MC?

  4. #3
    basscatt's Avatar
    basscatt is online now Cadillac Owners Master
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    Re: break prob

    did you "bench bleed" the master cylinder BEFORE you installed it?

    if you didn't - there is air trapped in the master cylinder -
    and because of the mounting angle - you will NEVER get the trapped air out -

    you can bleed GALLONS of brake fluid through the system -
    and use EVERY method of bleeding - it just ain't gonna work -

    you will need to remove the master cylinder - and bench bleed it -

  5. #4
    blalockchiro's Avatar
    blalockchiro is offline Cadillac Owners Fanatic
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    Re: break prob

    wow,,,,that seems like a pain in the b)&$.

  6. #5
    rodnok01's Avatar
    rodnok01 is offline Cadillac Owners Connoisseur
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    Re: break prob

    Verify is was the correct bore MC also....
    Def bench bleed before also.

  7. #6
    basscatt's Avatar
    basscatt is online now Cadillac Owners Master
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    Re: break prob

    Quote Originally Posted by blalockchiro View Post
    wow,,,,that seems like a pain in the b)&$.
    ---------------------------------
    what - the bench bleeding?

    it only takes a few minutes to do - but is absolutely critical

  8. #7
    old tin man is offline Cadillac Owners Member
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    Re: break prob

    so if i take the master cycinder off and bleed it it should it work

  9. #8
    basscatt's Avatar
    basscatt is online now Cadillac Owners Master
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    Re: break prob

    Quote Originally Posted by old tin man View Post
    so if i take the master cycinder off and bleed it it should it work
    -----------------------------
    IF there is air trapped in the master cylinder -
    and you remove it - and bench bleed the air out -
    you should get a "normal" pedal after you reinstall it and bleed the system -

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