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Home >> Lexus >> 2024 >> RX 500h >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical System - Service Information (2 Of 5) >> ENGINE ASSEMBLY (for Gasoline Model) >> Removal [10/2022 - ] >> Procedure

Removal [10/2022 - ]: Procedure

  1. PRECAUTION 
    NOTE:

    After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [10/2022 - ]

  2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 

    Refer to PROCEDURE - Step 1 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 1 [08/2023 - ]

  3. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [10/2022 - ]

  4. RELEASE PARKING BRAKE 
    Refer to PROCEDURE - Step 2
  5. REMOVE BATTERY 

    Refer to REMOVAL [10/2022 - ]

  6. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 

    Refer to PROCEDURE - Step 2 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 2 [08/2023 - ]

  7. SECURE STEERING WHEEL 
    Refer to PROCEDURE - Step 3 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 3 [08/2023 - ]
  8. REMOVE FRONT WHEELS 

    Refer to REMOVAL [10/2022 - ]

  9. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH 
    1. GTY1131687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH 
    1. GTY1131689Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE NO. 1 ENGINE UNDER COVER 
    1. GTY1132530Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Screw
  12. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY 
    1. GTY1131570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Screw
  13. REMOVE FRONT FENDER APRON SEAL LH 
    1. GTY1131686Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. REMOVE FRONT FENDER APRON SEAL RH 
    1. GTY1131683Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. REMOVE FRONT FLOOR COVER LH 
    Refer to PROCEDURE - Step 4
  16. REMOVE NO. 1 FLOOR UNDER COVER 
    Refer to PROCEDURE - Step 5
  17. REMOVE FRONT FLOOR COVER RH 
    Refer to PROCEDURE - Step 4
  18. REMOVE FRONT BUMPER ASSEMBLY 
  19. REMOVE FRONT BUMPER LOWER ABSORBER 

    Refer to PROCEDURE - Step 54 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 54 [08/2023 - ]

  20. REMOVE NO. 2 FRONT BUMPER REINFORCEMENT 

    Refer to PROCEDURE - Step 59 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 59 [08/2023 - ]

  21. DRAIN ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 4

  22. DRAIN COOLANT (for Intercooler) 

    Refer to PROCEDURE - Step 4

  23. DRAIN ENGINE OIL 

    Refer to PROCEDURE - Step 2

  24. DRAIN AUTOMATIC TRANSAXLE FLUID 
    Refer to PROCEDURE - Step 10
  25. DRAIN TRANSFER OIL (for AWD) 

    Refer to PROCEDURE - Step 2

  26. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    1. GTY1132503Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disengage the 3 clips and remove the No. 1 engine cover sub-assembly.
        NOTE:

        Pull the No. 1 engine cover sub-assembly straight up when removing. If the No. 1 engine cover sub-assembly is not pulled straight up when removing, it may become damaged.

  27. REMOVE NO. 3 ENGINE COVER 
    1. GTY1131332Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  28. REMOVE INLET AIR CLEANER ASSEMBLY 

    Refer to PROCEDURE - Step 4

  29. REMOVE AIR CLEANER ASSEMBLY 

    Refer to PROCEDURE - Step 5

  30. DISCONNECT NO. 2 VENTILATION HOSE 
    1. GTY1130081Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. REMOVE AIR CLEANER HOSE ASSEMBLY 
    1. GTY1131684Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. REMOVE ECM 
    Refer to PROCEDURE - Step 6
  33. REMOVE BATTERY CLAMP SUB-ASSEMBLY 
    1. GTY1131152Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 NO. 2 ENGINE WIRE *2 ENGINE ROOM MAIN WIRE
      *3 POSITIVE BATTERY TERMINAL - -
  34. DISCONNECT FUEL VAPOR FEED HOSE ASSEMBLY 
    1. GTY1130080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. DISCONNECT VACUUM HOSE ASSEMBLY 
    1. GTY1077671Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  36. DISCONNECT INLET HEATER WATER HOSE 
    1. GTY1077672Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. DISCONNECT HEATER WATER HOSE 
    1. GTY1080108Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    1. GTY1132995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the fuel tube sub-assembly.

        Refer to PRECAUTION [10/2022 - ]

  39. DISCONNECT NO. 1 RADIATOR HOSE 
    1. GTY1077640Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  40. DISCONNECT NO. 2 RADIATOR HOSE 
    1. GTY1106338Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  41. DISCONNECT NO. 1 INTERCOOLER COOLING WATER HOSE 

    Refer to PROCEDURE - Step 13

  42. DISCONNECT NO. 2 INTERCOOLER COOLING WATER HOSE 
    1. GTY1077649Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  43. DISCONNECT SUCTION HOSE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 4
  44. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 5
  45. DISCONNECT WIRE HARNESS 
    NOTE:

    When disconnecting a wire harness of any component connected to the supply power of the integrated capacitor (integration control supply) or when removing the integrated capacitor (integration control supply), make sure to wait 5 minutes or more after turning the ignition switch off for self-diagnosis to complete and the voltage of the integrated capacitor (integration control supply) to discharge.

    HINT: After disconnecting the wire harness, secure it with tape or equivalent to keep it out of the way.
    1. GTY1131717Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  46. DISCONNECT NO. 5 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 15

  47. SEPARATE STEERING INTERMEDIATE SHAFT ASSEMBLY 
    Refer to PROCEDURE - Step 5 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 5 [08/2023 - ]
  48. REMOVE PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY (for AWD) 

    Refer to REMOVAL [10/2022 - ]

  49. REMOVE FRONT EXHAUST PIPE ASSEMBLY (for 2WD) 
    Refer to PROCEDURE - Step 2
  50. SEPARATE TIE ROD ASSEMBLY LH 
    Refer to PROCEDURE - Step 6 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 6 [08/2023 - ]
  51. SEPARATE TIE ROD ASSEMBLY RH 

    Refer to PROCEDURE - Step 7 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 7 [08/2023 - ]

  52. REMOVE FRONT DRIVE SHAFT ASSEMBLY 

    Refer to REMOVAL [10/2022 - ]

  53. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE 
    1. GTY1206215Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Attachments - -
      1. Set the engine assembly with transaxle on an engine lifter.
        NOTE:
        • Using height adjustment attachments and plate lift attachments, keep the engine assembly with transaxle level.
        • Do not perform any procedures while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
        • To prevent the engine assembly from unexpectedly moving, securely support the engine assembly until it is secured to an engine stand.
        • To prevent the No. 2 oil pan sub-assembly from deforming, do not place any attachments under the No. 2 oil pan sub-assembly of the engine assembly with transaxle.
    2. GTY1205591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Front Bumper Extension Sub-assembly LH *2 Front Bumper Extension Sub-assembly RH
      *3 Front Suspension Member Brace Rear LH *4 Front Suspension Member Brace Rear RH
      Bolt Nut
      1. Remove the 3 bolts and nut and separate the engine mounting insulator sub-assembly RH from the engine mounting bracket RH.
      2. Remove the bolt and wire harness clamp bracket from the engine mounting insulator LH.
      3. Remove the bolt and nut and separate the engine mounting insulator LH from the engine mounting bracket sub-assembly LH.
        NOTE:

        While holding the nut in place, loosen the bolt.

      4. Remove the 2 bolts (A), 2 bolts (B) and 4 nuts and front bumper extension sub-assembly LH and front bumper extension sub-assembly RH from the front frame assembly and vehicle body.
      5. Remove the 2 bolts (C), 4 bolts (D) and front suspension member brace rear LH and front suspension member brace rear RH from the front frame assembly and vehicle body.
      6. Operate the engine lifter and remove the engine assembly with transaxle from the vehicle.
        NOTE:
        • Make sure that the engine assembly with transaxle is clear of all wiring and hoses.
        • While lowering the engine assembly with transaxle from the vehicle, do not allow it to contact the vehicle.
  54. REMOVE ENGINE MOUNTING BRACKET CAP 
    1. GTY1078869Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Turn over the engine mounting bracket cap to the upper part.
      2. While rotating in the direction shown in the illustration, remove the engine mounting bracket cap.
  55. INSTALL ENGINE HANGERS 
    1. GTY1078516Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 No. 1 Engine Hanger *2 No. 2 Engine Hanger
      1. Install the No. 1 engine hanger and No. 2 engine hanger with the 4 bolts as shown in the illustration.

        Torque: 43 N.m (438 kgf/cm, 32 ft.lbf) 

        HINT: 

        No. 1 Engine Hanger 12281-25080
        No. 2 Engine Hanger 12282-25060
        Bolt 91552-F1040
        90105-A0354
      2. Using an engine sling device and engine lift, secure the engine assembly with transaxle.
        NOTE:
        • Pay attention to the angle of the sling device as the engine assembly or No. 1 engine hanger and No. 2 engine hanger may be damaged or deformed if the angle is incorrect.
        • Do not perform any procedures while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
  56. REMOVE FLYWHEEL HOUSING UNDER COVER 
    1. GTY1079139Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  57. REMOVE DRIVE PLATE AND TORQUE CONVERTER ASSEMBLY SETTING BOLT 
    Refer to PROCEDURE - Step 2
  58. REMOVE FLYWHEEL HOUSING SIDE COVER 

    Refer to PROCEDURE - Step 16

  59. REMOVE STARTER ASSEMBLY 

    Refer to PROCEDURE - Step 17

  60. DISCONNECT VACUUM HOSE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 5

  61. SEPARATE TRANSMISSION BREATHER HOSE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 6

  62. REMOVE NO. 2 RADIATOR HOSE 
    1. GTY1106336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  63. REMOVE WATER BY-PASS HOSE ASSEMBLY 
    1. GTY1078766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  64. REMOVE STEERING GEAR HEAT INSULATOR 

    Refer to PROCEDURE - Step 13 [10/2022 - 08/2023] , or refer to PROCEDURE - Step 13 [08/2023 - ]

  65. DISCONNECT ENGINE WIRE 
    Refer to PROCEDURE - Step 7
  66. REMOVE FRONT FRAME ASSEMBLY 
    1. GTY1132008Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for 2WD *B for AWD
  67. REMOVE REAR ENGINE MOUNTING INSULATOR 

    Refer to PROCEDURE - Step 2

  68. REMOVE FRONT ENGINE MOUNTING INSULATOR 

    HINT: 

    Perform this procedure only when replacement of the front engine mounting insulator is necessary.

    1. GTY1132922Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for 2WD *B for AWD
  69. REMOVE ENGINE MOUNTING INSULATOR LH 

    HINT: 

    Perform this procedure only when replacement of the engine mounting insulator LH is necessary.

    Refer to PROCEDURE - Step 18

  70. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY 
    Refer to PROCEDURE - Step 10
  71. REMOVE DRIVE PLATE AND RING GEAR SUB-ASSEMBLY 
    See step  2
  72. REMOVE NO. 1 CRANKSHAFT POSITION SENSOR PLATE 

    See step  3

  73. REMOVE ENGINE WIRE 

    HINT: 

    As the illustration shown is an example, the actual details may differ.

    GTY1081375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  74. REMOVE V-RIBBED BELT 
    Refer to PROCEDURE - Step 2
  75. REMOVE GENERATOR ASSEMBLY 
    Refer to PROCEDURE - Step 12
  76. REMOVE COMPRESSOR ASSEMBLY WITH PULLEY 
    Refer to PROCEDURE - Step 6
  77. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY 
    NOTE:
    • Do not apply or add any oil or grease to the belt tensioner to prevent abnormal noises from the belt tensioner pulley, belt squealing, etc.
    • Do not allow oil or grease to adhere to the moving parts of the belt tensioner, as this may cause malfunctions.
    GTY743260Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. GTY1078345Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  78. INSTALL ENGINE ASSEMBLY TO ENGINE STAND 
    1. GTY996339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  79. REMOVE ENGINE HANGERS 
  80. DISCONNECT INTERCOOLER RESERVE TANK ASSEMBLY 

    HINT: 

    Perform this procedure only when replacement of the engine mounting insulator sub-assembly RH is necessary.

    1. GTY1131713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  81. REMOVE ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH 

    HINT: 

    Perform this procedure only when replacement of the engine mounting insulator sub-assembly RH is necessary.

    1. GTY1131712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  82. REMOVE ENGINE MOUNTING SPACER 

    HINT: 

    Perform this procedure only when replacement of the engine mounting spacer is necessary.

    1. GTY1131715Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  83. REMOVE ENGINE MOUNTING BRACKET SUB-ASSEMBLY LH 

    HINT: 

    Perform this procedure only when replacement of the engine mounting bracket sub-assembly LH is necessary.

    1. GTY1131714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002