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Home >> Subaru >> 2019 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) >> Brake Booster ASSY >> Unit inspection

Unit inspection

  1. Brake vacuum check valve ASSY check
    1. Slide 2 clamps to remove the vacuum hose ASSY.
    2. Using vacuum gauge, check that there is a ventilation from the brake booster ASSY to the engine side. Also, check that there is no ventilation from the engine side to the brake booster ASSY side.
      G12591068Courtesy of SUBARU OF AMERICA, INC.
      NOTE: If it is faulty, replace the vacuum hose ASSY.
    3. Face the engine stamp to the engine side as shown in the figure, and then install it to the engine side.
      G12591069Courtesy of SUBARU OF AMERICA, INC.
    4. Face the paint to the front side of the vehicle and install it to the brake booster side.
      NOTE: If the paint is worn off, check the ventilation and connect them so that there is a ventilation from the brake booster side to the engine side.
    5. Install the vacuum hose with 2 clamps.
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