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Home >> Lexus >> 2020 >> GX 460 Base >> Repair and Diagnosis >> Engine Mechanical >> Lubrication System >> Engine Lubrication System (Service Information) >> Oil Pump >> Removal [08/2020 - ] >> Procedure

Removal [08/2020 - ]: Procedure

  1. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PROCEDURE - Step 1

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:
    • w/ Navigation System (for HDD):

      After the engine switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the engine switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) battery terminal.

      Waiting Time before Disconnecting Cable from Negative (-) Battery Terminal

      Condition Waiting Time
      Vehicle enrolled in safety connect system 6 minutes
      Vehicle not enrolled in safety connect system 1 minute
    • When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [08/2019 - 08/2021] , or refer to INITIALIZATION [08/2021 - 08/2022] , or refer to INITIALIZATION [08/2022 - ] ).
  3. DRAIN ENGINE OIL 

    See step  1[08/2015 - 08/2020], or see step  1[08/2021 - ]

  4. DRAIN ENGINE COOLANT 

    Refer to PROCEDURE - Step 5

  5. REMOVE RADIATOR ASSEMBLY 
    1. Remove the radiator (Refer to REMOVAL [08/2015 - ] ).
  6. REMOVE INTAKE MANIFOLD 
    1. Remove the intake manifold (Refer to REMOVAL [08/2015 - ] ).
  7. REMOVE COOLER COMPRESSOR ASSEMBLY 
    1. Remove the cooler compressor (Refer to REMOVAL [08/2020 - ] ).
  8. REMOVE AIR CLEANER CAP AND HOSE 

    Refer to PROCEDURE - Step 24

  9. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY 
  10. REMOVE AIR CLEANER CASE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 26

  11. REMOVE FRONT FENDER APRON SEAL RH 

    Refer to PROCEDURE - Step 12

  12. REMOVE AIR TUBE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 12

  13. REMOVE AIR SWITCHING VALVE ASSEMBLY (for Bank 1) 

    Refer to PROCEDURE - Step 4

  14. REMOVE AIR SWITCHING VALVE ASSEMBLY (for Bank 2) 

    Refer to PROCEDURE - Step 6

  15. DISCONNECT ENGINE WIRE 
    1. for Engine Room LH Side:
      1. GTY648234Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Disconnect the injector connector.

      2. Disconnect the 4 ignition coil connectors.
      3. Disconnect the 2 VVT sensor connectors.
      4. Disconnect the noise filter connector.
      5. Disconnect the engine coolant temperature sensor connector.
      6. Disconnect the 2 camshaft timing oil control valve connectors.
      7. Disconnect the camshaft position sensor connector.
      8. Disconnect the 6 clamps.
      9. Disconnect the cooler compressor connector.
    2. GTY648230Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      for Engine Room RH Side:

      1. Disconnect the 2 camshaft timing oil control valve connectors.
      2. Disconnect the 4 ignition coil connectors.
      3. Disconnect the injector connector.
      4. Disconnect the 2 VVT sensor connectors.
      5. Disconnect the noise filter connector.
      6. Remove the bolt and ground wire.
      7. Disconnect the 6 clamps.
      8. Disconnect the power steering oil pressure switch connector and solenoid valve connector.
      9. GTY648189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Disconnect the wire harness clamp.

      10. Remove the bolt and disconnect the wire harness clamp bracket.
    3. GTY648232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the bolt and disconnect the clamp and engine wire.

  16. REMOVE OIL FILTER ELEMENT 

    See step  4[08/2015 - 08/2021], or see step  4[08/2021 - ]

  17. REMOVE ENGINE OIL PRESSURE SWITCH ASSEMBLY 

    See step  3

  18. REMOVE OIL FILTER BRACKET SUB-ASSEMBLY 
    1. GTY274012Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 bolts, 2 nuts and filter bracket.

    2. GTY286124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 O-rings.

      TEXT IN ILLUSTRATION

      O-Ring
  19. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE 

    Refer to PROCEDURE - Step 11

  20. DISCONNECT VANE PUMP ASSEMBLY 
    1. GTY610877Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 bolts and disconnect the vane pump.

  21. REMOVE GENERATOR ASSEMBLY 

    Refer to PROCEDURE - Step 8

  22. REMOVE NO. 4 ENGINE COVER 

    Refer to PROCEDURE - Step 2

  23. REMOVE NO. 3 ENGINE COVER 

    Refer to PROCEDURE - Step 3

  24. REMOVE FUEL TUBE SUB-ASSEMBLY 
    1. Remove the EFI fuel pipe clamp.
    2. GTY274017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 bolts and fuel tube (Refer to PRECAUTION [08/2015 - ] ).

  25. REMOVE FUEL HOSE 
    1. Remove the EFI fuel pipe clamp.
    2. GTY286134Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Disconnect the clamp and remove the fuel hose (Refer to PRECAUTION [08/2015 - ] ).

  26. DISCONNECT HEATER WATER HOSE 
    1. GTY273949Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Disconnect the 2 heater water hoses.

  27. REMOVE NO. 4 WATER BY-PASS PIPE 
    1. GTY274010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 bolts and disconnect the No. 4 water by-pass pipe.

  28. REMOVE WATER BY-PASS HOSE 
    1. GTY286119Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the water by-pass hose.

  29. REMOVE NO. 1 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 4

  30. REMOVE NO. 3 WATER BY-PASS PIPE 
    1. GTY263806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Disconnect the hose.

    2. Remove the 2 bolts and water by-pass pipe.
  31. REMOVE NO. 3 WATER BY-PASS HOSE 
    GTY283764Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. DISCONNECT NO. 8 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 5

  33. DISCONNECT NO. 5 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 6

  34. REMOVE WATER INLET HOUSING 
    1. GTY286132Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 3 bolts and water inlet housing.

    2. GTY286125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the gasket from the timing chain cover.

      TEXT IN ILLUSTRATION

      Gasket
  35. REMOVE FRONT WATER BY-PASS JOINT 
    1. GTY274011Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 4 nuts, water by-pass joint and 2 gaskets.

  36. REMOVE WATER PUMP PULLEY 

    Refer to PROCEDURE - Step 8

  37. REMOVE NO. 1 IDLER PULLEY SUB-ASSEMBLY 
    1. GTY267196Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the bolt and idler pulley.

  38. REMOVE FAN BRACKET ASSEMBLY 
    1. GTY176448Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 5 bolts and fan bracket.

  39. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY 
    1. Remove the bolt, 6 mm hexagon bolt and belt tensioner.
      GTY255060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  40. REMOVE NO. 4 AIR TUBE 
    1. GTY680364Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 bolts and 2 wire harness clamp brackets.

    2. GTY274009Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the bolt, 2 nuts, 2 stud bolts and No. 4 air tube.

    3. Remove the gasket from the No. 4 air tube.
      NOTE:

      Be careful not to damage the installation surface of the gasket.

  41. REMOVE NO. 3 AIR TUBE 
    1. GTY656562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the 2 bolts and 2 wire harness clamp brackets.

    2. GTY274013Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the bolt, 2 nuts, 2 stud bolts and No. 3 air tube.

    3. Remove the gasket from the No. 3 air tube.
      NOTE:

      Be careful not to damage the installation surface of the gasket.

  42. REMOVE IGNITION COIL ASSEMBLY 

    Refer to PROCEDURE - Step 5

  43. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH 
    1. Remove the 14 bolts, seal washer, cylinder head cover and gasket.
      GTY176477Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Make sure the removed parts are returned to the same places they were removed from.

    2. Remove the 5 gaskets from the camshaft bearing caps (No. 2, No. 3).
      GTY273991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      Gasket
  44. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY RH 
    1. Remove the 14 bolts, seal washer, cylinder head cover and gasket.
      GTY267249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Make sure the removed parts are returned to the same places they were removed from.

    2. Remove the 5 gaskets from the camshaft bearing caps (No. 1, No. 3).
      GTY286127Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      Gasket
  45. REMOVE CRANKSHAFT PULLEY 
    1. GTY668544Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Using SST, remove the crankshaft pulley set bolt.

      • SST: 09213-70011 
      • SST: 09330-00021 
      TEXT IN ILLUSTRATION

      *a Hold
      Turn
    2. Temporarily install the pulley set bolt to the crankshaft until 2 or 3 threads are engaged.
    3. Using the pulley set bolt and SST, remove the crankshaft pulley.
      GTY673077Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      • SST: 09950-50013 
        1. 09951-05010
        2. 09952-05010
        3. 09953-05010
        4. 09954-05011
      TEXT IN ILLUSTRATION

      *a Hold
      Turn
  46. REMOVE TIMING CHAIN COVER SUB-ASSEMBLY 
    1. Remove the 26 bolts and nut shown in the illustration.
      GTY284564Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the timing chain cover by prying between it and the cylinder head and cylinder block with a screwdriver as shown in the illustration.
      GTY273993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      Protective Tape

      HINT: 

      Tape the screwdriver tip before use.

      NOTE:

      Be careful not to damage the cylinder head, camshaft housing and cylinder block contact surfaces of the chain cover.

    3. Remove the gasket from the cylinder block.
      GTY267246Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. GTY268743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Remove the O-ring from the oil pan.

  47. REMOVE WATER INLET PIPE 
    1. Remove the water inlet pipe.
      GTY267247Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 O-rings from the water inlet pipe.
  48. REMOVE FRONT CRANKSHAFT OIL SEAL 

    Refer to PROCEDURE - Step 26

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