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Home >> Toyota >> 2022 >> Avalon XLE >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) (Service Information) >> BRAKE BOOSTER (for Gasoline Model) >> Removal [08/2021 -] >> Procedure

Removal [08/2021 -]: Procedure

  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [04/2018 -]

  2. REMOVE BRAKE MASTER CYLINDER SUB-ASSEMBLY 

    Refer to REMOVAL [08/2021 -] 

  3. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 8

  4. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY 

    Refer to REMOVAL [04/2018 -]

  5. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6

  6. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY (for A25A-FKS) 

    Refer to PROCEDURE - Step 20

  7. REMOVE AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE (for A25A-FKS) 

    Refer to PROCEDURE - Step 22

  8. REMOVE AIR CLEANER ASSEMBLY WITH AIR CLEANER HOSE (for 2GR-FKS) 

    Refer to PROCEDURE - Step 21

  9. REMOVE BATTERY CLAMP SUB-ASSEMBLY 
    1. for A25A-FKS:
      1. Disengage the 4 clamps from the battery clamp sub-assembly.
        GTY767072Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Remove the 3 bolts, nut and battery clamp sub-assembly.
    2. for 2GR-FKS:
      1. Disengage the 5 clamps from the battery clamp sub-assembly.
        GTY754844Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Remove the 3 bolts, nut and battery clamp sub-assembly.
  10. DISCONNECT UNION TO CHECK VALVE HOSE 
    1. Slide the clip and disconnect the union to check valve hose from the brake booster assembly.
      GTY780683Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. LOOSEN LOCK NUT 
    1. Loosen the lock nut of the brake master cylinder push rod clevis.
      GTY743800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Lock Nut
      *2 Brake Master Cylinder Push Rod Clevis
  12. REMOVE PUSH ROD PIN 

    See step  7

  13. REMOVE BRAKE BOOSTER ASSEMBLY 
    1. Disconnect the connector from the vacuum warning switch assembly.
      GTY774215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 4 nuts and push the brake booster assembly toward the engine compartment.
      GTY766383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Do not apply excessive force to the brake lines.

    3. Remove the brake master cylinder push rod clevis and lock nut from the brake booster assembly.
    4. Remove the brake booster assembly from the vehicle body.
      NOTE:

      Do not apply excessive force to the brake lines.

  14. REMOVE BRAKE BOOSTER GASKET