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Home >> Toyota >> 2021 >> 4Runner Limited, RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) - Service Information >> Brake Booster >> Removal [08/2015 - ] >> Procedure

Removal [08/2015 - ]: Procedure

  1. DRAIN BRAKE FLUID 
    NOTE:

    Wash off brake fluid immediately if it comes in contact with any painted surface.

  2. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY 
    1. Remove the brake master cylinder sub-assembly (Refer to REMOVAL [08/2015 - ] ).
  3. REMOVE BRAKE PEDAL RETURN SPRING 
  4. REMOVE PUSH ROD PIN 

    See step  4

  5. DISCONNECT BRAKE MASTER CYLINDER PUSH ROD CLEVIS 
    1. Loosen the brake master cylinder push rod clevis lock nut.
    2. Disconnect the brake master cylinder push rod clevis.
  6. DISCONNECT VACUUM HOSE 
    1. Slide the clip and disconnect the vacuum hose.
      GTY545913Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE BRAKE VACUUM CHECK VALVE ASSEMBLY 
    1. Remove the vacuum check valve assembly from the brake booster assembly.
  8. REMOVE CHECK VALVE GROMMET 
    1. Remove the check valve grommet from the brake booster assembly.
  9. REMOVE BRAKE BOOSTER ASSEMBLY 
    1. Remove the 4 nuts and brake booster assembly from the body.
      GTY682188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not damage the brake lines.

  10. REMOVE BRAKE BOOSTER GASKET 
    1. Remove the brake booster gasket from the brake booster assembly.
  11. REMOVE BRAKE MASTER CYLINDER PUSH ROD CLEVIS 
    1. Loosen the lock nut and remove the brake master cylinder push rod clevis and lock nut from the brake booster assembly.
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