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Vacuum leak comes and goes

Discussion in '2nd Gen 4Runners (1990-1995)' started by Tannis133, Dec 13, 2020.

  1. Dec 13, 2020 at 10:37 AM
    #1
    Tannis133

    #1
    Tannis133 [OP] New Member

    Joined:
    Dec 1, 2020
    Member:
    #18237
    Messages:
    17
    Gender:
    Male
    Vehicle:
    1995 4Runner
    Replaced vacuum booster with new and still occasionally when depressing the brake pedal there’s a flutter kind of noise from firewall. Assuming it’s the booster.
    Any ideas????
    Thks
     
    Tannis133, Dec 13, 2020
    #1
  2. Dec 13, 2020 at 3:44 PM
    #2
    Toy4X4

    #2
    Toy4X4 New Member

    Joined:
    Jul 18, 2020
    Member:
    #15580
    Messages:
    7,761
    Gender:
    Male
    First Name:
    Jeff
    Vehicle:
    2020 Offroad Prem. 4-runner
    RevTek 3" front- 2" rear leveling, JBA uca's, LED interior lights, Cooper 275-70-17 AT3 LT
    Is there a check valve on the hose going to the booster? It might be that.
     
    Toy4X4, Dec 13, 2020
    #2
  3. Dec 14, 2020 at 2:38 AM
    #3
    Tannis133

    #3
    Tannis133 [OP] New Member

    Joined:
    Dec 1, 2020
    Member:
    #18237
    Messages:
    17
    Gender:
    Male
    Vehicle:
    1995 4Runner
    There is a little round plastic piece in the middle of the hose. I'll research what it is. Thanks
     
    Tannis133, Dec 14, 2020
    #3
    Toy4X4 likes this.
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