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Home >> Lexus >> 2019 >> RX 350L FWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Intake System / Exhaust System - Service Information >> Intake Manifold >> Removal [08/2019 - ] >> Procedure

Removal [08/2019 - ]: 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 [08/2019 - ]

  2. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [12/2017 - ]

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [08/2019 - ]

  4. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 

    Refer to REMOVAL [09/2015 - ]

  5. REMOVE V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 25

  6. DISCONNECT VENTILATION HOSE 
    1. Slide the clip and disconnect the ventilation hose from the intake air surge tank assembly.
      GTY675891Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. DISCONNECT PURGE VALVE (PURGE VSV) (for TMMC Made) 
    1. Disconnect the No. 1 fuel vapor feed hose from the intake air surge tank assembly.
      GTY639265Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and disconnect the purge valve (purge VSV) from the intake air surge tank assembly.
  8. DISCONNECT PURGE VALVE (PURGE VSV) (except TMMC Made) 
    1. Disconnect the No. 1 fuel vapor feed hose from the intake air surge tank assembly.
      GTY794498Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and disconnect the purge valve (purge VSV) from the intake air surge tank assembly.
  9. REMOVE NO. 2 SURGE TANK STAY 
    1. Remove the 2 bolts and No. 2 surge tank stay from the intake manifold and camshaft housing RH.
      GTY627916Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE INTAKE AIR SURGE TANK ASSEMBLY 
    1. Disconnect the vacuum switching valve (for ACIS) connector.
      GTY630615Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Vacuum Switching Valve (for ACIS) Connector
      *b Wire Harness Clamp
      *c Vacuum Hose Sub-assembly
    2. Disengage the wire harness clamp from the intake air surge tank assembly.
    3. Disengage the 5 clamps to disconnect the vacuum hose sub-assembly from the intake air surge tank assembly.
    4. Disengage the 2 clamps to disconnect the vacuum hose sub-assembly from the intake air surge tank assembly.
      GTY644482Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Vacuum Hose Sub-assembly
      *2 No. 2 Air Tube
    5. Disengage the clamp to disconnect the No. 2 air tube from the intake air surge tank assembly.
    6. Remove the 5 bolts, 2 nuts and intake air surge tank assembly from the intake manifold.
      GTY636240Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
    7. Disconnect the vacuum hose sub-assembly from the intake air surge tank assembly.
      GTY627911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE AIR SURGE TANK TO INTAKE MANIFOLD GASKET 
    1. Remove the air surge tank to intake manifold gasket from the intake air surge tank assembly.
      GTY627987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE NO. 1 V-BANK COVER BRACKET 

    HINT: 

    Perform this procedure only when replacement of the No. 1 V-bank cover bracket is necessary.

    1. Remove the 2 No. 1 V-bank cover brackets from the intake air surge tank assembly.
      GTY627913Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE NO. 2 ENGINE MOUNTING STAY RH 
    1. Remove the bolt, 2 nuts and No. 2 engine mounting stay RH from the engine mounting insulator sub-assembly RH.
      GTY633625Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
    2. Disengage the wire harness clamp from the wire harness clamp bracket.
      GTY627989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the bolt and disconnect the wire harness clamp bracket from the No. 2 engine mounting stay RH.
      GTY627988Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the bolt and No. 2 engine mounting stay RH from the intake manifold and engine mounting insulator sub-assembly RH.
      GTY627991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. DISCONNECT FUEL TUBE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  15. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6

  16. REMOVE NO. 1 DELIVERY PIPE SPACER 

    Refer to PROCEDURE - Step 7

  17. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 8

  18. REMOVE INTAKE MANIFOLD 
    1. Remove the 4 bolts, 4 nuts and intake manifold from the cylinder head sub-assembly.
      GTY657528Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut
  19. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET 
    1. Remove the 2 No. 1 intake manifold to head gaskets from each cylinder head sub-assembly.
      GTY675908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE STUD BOLT 

    HINT: 

    If a stud bolt is deformed or the threads are damaged, replace it.

    1. Using an E8 "TORX" socket wrench, remove the 2 stud bolts from the intake manifold.
      GTY627992Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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