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Home >> Lexus >> 2021 >> ES 250 Luxury >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System (Hydraulic) - Service Information (2 Of 2) >> VACUUM PUMP (for TMMK Made) >> On-Vehicle Inspection [06/2018 - ] >> Procedure

On-Vehicle Inspection [06/2018 - ]: Procedure

  1. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY 

    Refer to REMOVAL [06/2018 - ]

  2. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6 [06/2018 - 08/2020] , or refer to PROCEDURE - Step 6 [08/2020 - 08/2021] , or refer to PROCEDURE - Step 6 [08/2021 - 09/2022] , or refer to PROCEDURE - Step 6 [09/2022 - ]

  3. OPERATION CHECK 
    1. Slide the clip and disconnect the air tube from the vacuum pump assembly.
    2. Connect the hose of the vacuum gauge to the vacuum pump assembly.
      GTY743855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Vacuum Gauge
      *b Plug
    3. Start the engine and warm it up for more than 2 minutes.
    4. With the engine idling, check the vacuum of the vacuum pump assembly.

      Standard Pressure

      More than 86.7 kPa (650 mmHg, 25.6 in.Hg)

      HINT: 

      If the result is not as specified, replace the vacuum pump assembly.

    5. Remove the vacuum gauge from the vacuum pump assembly.
    6. Connect the air tube to the vacuum pump assembly and slide the clip to secure it.
  4. INSTALL FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5 [06/2018 - 08/2020] , or refer to PROCEDURE - Step 5 [08/2020 - 08/2021] , or refer to PROCEDURE - Step 5 [08/2021 - ]

  5. INSTALL COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3

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