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Home >> Lexus >> 2019 >> LC 500 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Intake / Exhaust System - Service Information (Coupe) >> Intake Manifold >> Removal [05/2023 - 09/2023] >> Procedure

Removal [05/2023 - 09/2023]: Procedure

  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [05/2023 - ]

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    Refer to REMOVAL [05/2023 - ]

  3. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 

    Refer to REMOVAL [03/2017 - ]

  4. REMOVE RADIATOR SUPPORT TO CROSS MEMBER BRACE SUB-ASSEMBLY LH 

    Refer to PROCEDURE - Step 7

  5. REMOVE RADIATOR SUPPORT TO CROSS MEMBER BRACE SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 8

  6. REMOVE AIR CLEANER WITH ELEMENT ASSEMBLY RH 

    Refer to PROCEDURE - Step 23

  7. REMOVE AIR CLEANER WITH ELEMENT ASSEMBLY LH 

    Refer to PROCEDURE - Step 24

  8. REMOVE INTAKE AIR CONNECTOR PIPE 
    1. Remove the bolt, hose clamp and intake air connector pipe.
      GTY818629Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE INTAKE AIR SOUND CREATOR 
    1. Remove the 2 bolts, hose clamp and intake air sound creator.
      GTY818626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE NO. 2 INTAKE AIR CONNECTOR PIPE 
    1. Detach the air cleaner hose clamp.
      GTY818625Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove a bolt.
    3. Slide the clamp and remove the No. 2 intake air connector pipe from the No. 3 intake air connector pipe.
  11. REMOVE AIR CLEANER HOSE CLAMP 
    1. Detach the clamp and remove the air cleaner hose clamp.
      GTY818624Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE PURGE VSV 

    Refer to PROCEDURE - Step 2

  13. REMOVE INJECTOR DRIVER 

    Refer to PROCEDURE - Step 4

  14. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 14

  15. DISCONNECT ENGINE WIRE 
    1. Remove the 2 bolts and 4 nuts.
      GTY788093Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Nut
      Connector Fuel Tube Sub-assembly
    2. Detach the 4 clamps.
    3. Disconnect the 17 connectors.
    4. Detach the fuel tube sub-assembly from the engine wire.
    5. Remove the 2 bolts and nut.
      GTY812425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Connector
      Nut
    6. Detach the 4 clamps.
    7. Disconnect the 5 connectors.
    8. Remove the 2 bolts.
      GTY829868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Connector
    9. Detach the 6 clamps.
    10. Disconnect the 7 connectors.
  16. DISCONNECT NO. 5 ENGINE WIRE 
    1. Detach the 4 clamps to disconnect the No. 5 engine wire from the intake air surge tank assembly.
      GTY818651Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. DISCONNECT VACUUM HOSE SUB-ASSEMBLY 
    1. Detach the 2 clamps and disconnect the vacuum hose sub-assembly from the intake air surge tank assembly.
      GTY818655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE FUEL VAPOR FEED HOSE 
    1. Slide the clip and remove the fuel vapor feed hose from the intake air surge tank assembly.
      GTY818654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. DISCONNECT PCV HOSE 
    1. Slide the clip and disconnect the PCV hose from the intake air surge tank assembly.
      GTY818653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE INJECTOR DRIVER BRACKET 
    1. Remove the 4 bolts and 2 injector driver brackets from the intake air surge tank assembly, cylinder head cover sub-assembly LH and cylinder head cover sub-assembly.
      GTY836833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. REMOVE WATER BY-PASS PIPE SUB-ASSEMBLY 
    1. Slide the clip and disconnect the No. 3 water by-pass hose from the water by-pass pipe sub-assembly.
      GTY823869Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Heater Water Inlet Hose
      *2 Heater Water Outlet Hose
      *3 No. 3 Water By-pass Hose
      *4 Water By-pass Hose
      *5 No. 5 Water By-pass Hose
    2. Slide the clip and disconnect the water by-pass hose from the water by-pass pipe sub-assembly.
    3. Slide the clip and disconnect the No. 5 water by-pass hose from the water by-pass pipe sub-assembly.
    4. Slide the clip and disconnect the heater water outlet hose from the water by-pass pipe sub-assembly.
    5. Slide the clip and disconnect the heater water inlet hose from the water by-pass pipe sub-assembly.
    6. Remove the 2 bolts to water by-pass pipe sub-assembly from the intake air surge tank assembly.
      GTY818649Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. REMOVE FUEL TUBE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 20

  23. REMOVE NO. 2 FUEL DELIVERY PIPE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 21

  24. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 22

  25. REMOVE NO. 1 DELIVERY PIPE SPACER 

    Refer to PROCEDURE - Step 23

  26. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 24

  27. REMOVE PORT FUEL INJECTOR ASSEMBLY 

    Refer to PROCEDURE - Step 25

  28. DISCONNECT NO. 1 FUEL PIPE SUB-ASSEMBLY 
    1. Remove the bolt to disconnect the No. 1 fuel pipe sub-assembly from the intake air surge tank assembly.
      GTY818648Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  29. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. Remove the 4 bolts and 3 wire harness clamp brackets.
      GTY818638Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  30. REMOVE INTAKE AIR SURGE TANK ASSEMBLY 
    1. Remove the bolt to disconnect the wire harness bracket from the intake air surge tank assembly.
      GTY836827Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 8 bolts and 2 nuts.
      GTY810995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
    3. Remove the intake air surge tank assembly from the cylinder head sub-assembly.
    4. Remove the 2 No. 1 intake manifold to head gaskets from the cylinder head sub-assembly.
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