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Brake booster noise??

Discussion in '1st Gen. Tacomas (1995-2004)' started by Ak4T777, Apr 12, 2017.

  1. Apr 29, 2020 at 10:18 AM
    #41
    Cbtacoma

    Cbtacoma Active Member

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    Did you ever get this problem resolved?Having the same issues and curious if seals fixed it.
     
  2. Feb 5, 2022 at 4:08 PM
    #42
    scofflaw

    scofflaw Well-Known Member

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    Does anyone happen to know the orientation for the brake master cylinder and brake booster gaskets?

    Paper gasket separates the master cylinder and the brake booster, it has writing on one side, not sure which side to face outward.
    771A0E38-F3E4-40C0-8980-63E83E0D26EB.jpg 94C4209B-B4F7-427A-99F2-AD2297CE35A4.jpg 6CC6F26C-2164-4111-8A05-886123967C23.jpg

    The other gasket goes between the brake booster and the firewall, not sure which way it faces either, any ideas? It’s same on both sides but there are tabs on one end and holes on the other, not sure if holes go on top or on bottom.

    C257C1D1-7C75-42F5-A4A9-423CC908D031.jpg A9900B06-377C-445D-8AA7-35FBF9710F82.jpg
     
  3. Jun 23, 2025 at 1:32 PM
    #43
    mjhenks

    mjhenks Well-Known Member

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    Thank you for describing the symptoms on this. Now i know what i am chasing.
     
  4. Jun 30, 2025 at 10:32 AM
    #44
    mjhenks

    mjhenks Well-Known Member

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    @Glamisman. Do you have a part number for the seal between the master cylinder and brake booster? What i got from Toyota was not the right inside diameter.
     
  5. Jun 30, 2025 at 11:40 AM
    #45
    Glamisman

    Glamisman Well-Known Member

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    See if this guy can help

    call this guy, Steve is his name. best in the business.

    Bush Power Brake
    Address: 25 E 17th St A, National City, CA 91950

    Phone: (619) 474-8906
     
  6. Jul 7, 2025 at 8:48 AM
    #46
    mjhenks

    mjhenks Well-Known Member

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    Thank you @Glamisman

    Spoke to Steve. Nice guy.

    To hopefully help others i did call Toyota and they confirmed that this seal is NOT available thru them outside of the whole booster which is also NLA. Steve did indicate he probably had something but i went forward with a low mileage used booster with a good seal.

    While my vacuum leak noise is gone my brakes are still soft like i have a leak. Sometimes the brakes are solid and sometimes soft where i have to pump a few times. Hmmm....

    FWIW I did find alot of brake fluid in the old booster confirming where all my fluid went when my MC was leaking.
     

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