Question about 1984 Oldsmobile Delta 88

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Press pedel makes air swishing sound but no power brake pressure

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  • Master
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The power brake booster, is not holding vacuum, that's the hissing noise you hear, and that's why you don't have power brake's, the only fix is replacing the booster.

Posted on Sep 14, 2010

Testimonial: "Thank you, didn't know if needed to replace master cylinder also??"

  • Alexander Mimun
    Alexander Mimun Sep 14, 2010

    Master cylinder will be ok, just unbolt from brake booster and set aside, you don't have to remove the brake line from the master, or you will have to bleed brake system then, and you be making more work for yourself.

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