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Removal [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 2

  2. REMOVE COOL AIR INTAKE DUCT SEAL 

    Refer to PROCEDURE - Step 1

  3. REMOVE CENTER NO. 4 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 2

  4. DRAIN ENGINE COOLANT 

    Refer to PROCEDURE - Step 3

  5. DISCONNECT VENTILATION HOSE 
    1. Slide the 2 clips and disconnect the No. 2 ventilation hose and No. 3 ventilation hose from the air cleaner hose assembly.
      GTY501316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 2 Ventilation Hose
      *2 No. 3 Ventilation Hose
  6. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE 
    1. Disconnect the mass air flow meter sub-assembly connector.
      GTY515718Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the wire harness clamp.
    3. Disengage the 2 air cleaner cap clamps.
      GTY1084092Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Loosen the hose clamp and remove the air cleaner cap with air cleaner hose from the throttle body with motor assembly.
  7. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 
    1. Disconnect the throttle body with motor assembly connector.
      GTY515716Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the No. 4 water by-pass hose from the front water by-pass joint.
      GTY496317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 4 Water By-pass Hose
      *2 No. 5 Water By-pass Hose
    3. Slide the clip and disconnect the No. 5 water by-pass hose from the water inlet housing.
    4. Remove the 2 bolts and 2 nuts from the throttle body with motor assembly.
      GTY515701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Using an E6 "TORX" socket wrench, remove the 2 stud bolts, throttle body with motor assembly and throttle body gasket from the intake air surge tank assembly.
      GTY515702Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      If the throttle body with motor assembly has been struck or dropped, replace it.

    6. Slide the 2 clips and remove the No. 4 water by-pass hose and No. 5 water by-pass hose from the throttle body with motor assembly.
      GTY515703Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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