LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2024 >> NX 250 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Engine Mechanical System - Service Information (2 Of 4)) >> Engine Assembly >> Removal [03/2024 - ] >> Procedure

Removal [03/2024 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
  1. PRECAUTION 
    NOTE:

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

    Refer to BEFORE DISCONNECTING BATTERY [11/2021 - ]

  2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM 

    Refer to PROCEDURE - Step 1

  3. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [11/2021 - ]

  4. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD 

    Refer to PROCEDURE - Step 2

  5. SECURE STEERING WHEEL 
    Refer to PROCEDURE - Step 3
  6. REMOVE FRONT WHEELS 

    Refer to REMOVAL [03/2024 - ]

  7. REMOVE FRONT FENDER FRONT SPLASH SHIELD LH 
    1. GTY1075993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE FRONT FENDER FRONT SPLASH SHIELD RH 
    1. GTY1075158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE NO. 1 ENGINE UNDER COVER 
    1. GTY1075655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Screw
  10. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY 
    1. GTY1074996Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt Screw
  11. REMOVE FRONT FENDER APRON SEAL LH 
    1. GTY1075153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE FRONT FENDER APRON SEAL RH 
    1. GTY1075151Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE FRONT BUMPER ASSEMBLY 

    for Sport Package:

    Refer to REMOVAL [03/2024 - ]

    except Sport Package:

    Refer to REMOVAL [03/2024 - ]

  14. REMOVE FRONT BUMPER LOWER ABSORBER 

    Refer to PROCEDURE - Step 49

  15. REMOVE NO. 2 FRONT BUMPER REINFORCEMENT 

    Refer to PROCEDURE - Step 52

  16. DRAIN ENGINE COOLANT (for Engine) 

    Refer to PROCEDURE - Step 4

  17. DRAIN ENGINE OIL 

    Refer to PROCEDURE - Step 2

  18. DRAIN HYBRID TRANSAXLE FLUID 

    Refer to PROCEDURE - Step 2

  19. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY 
    1. GTY1074912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disengage the 4 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.

  20. REMOVE INVERTER WITH CONVERTER ASSEMBLY 

    Refer to REMOVAL [11/2021 - ]

  21. DISCONNECT FUEL VAPOR FEED HOSE ASSEMBLY 
    1. GTY1066574Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. DISCONNECT OUTLET HEATER WATER HOSE 
    1. GTY1075298Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Retainer - -
      Pull out Pull off
      1. Disconnect the outlet heater water hose connector from the No. 2 water by-pass pipe sub-assembly.
        NOTE:

        Remove any foreign matter on the No. 2 water by-pass pipe sub-assembly and outlet heater water hose connector before performing this work.

        1. Pull out the retainer to disengage the lock claws and pull off the outlet heater water hose connector.

        2. Check that there is no foreign matter on the sealing surfaces of the disconnected water lines. Clean them if necessary.

        3. Cover the disconnected No. 2 water by-pass pipe sub-assembly and outlet heater water hose connector with plastic bags to prevent damage and contamination.

  23. DISCONNECT INLET HEATER WATER HOSE 
    1. GTY1075823Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Retainer - -
      Pull out Pull off
      1. Disconnect the inlet heater water hose connector from the flow shutting valve (water by-pass hose assembly).
        NOTE:

        Remove any foreign matter on the flow shutting valve (water by-pass hose assembly) and inlet heater water hose connector before performing this work.

        1. Pull out the retainer to disengage the lock claws and pull off the inlet heater water hose connector.

        2. Check that there is no foreign matter on the sealing surfaces of the disconnected water lines. Clean them if necessary.

        3. Cover the disconnected inlet heater water hose connector with a plastic bag to prevent damage and contamination.

  24. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    1. GTY1074999Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the No. 1 fuel pipe clamp from the fuel tube connector.
      2. Disconnect the fuel tube sub-assembly.

        Refer to PRECAUTION [11/2021 - ]

  25. DISCONNECT NO. 1 RADIATOR HOSE 
    1. GTY1066181Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. DISCONNECT NO. 2 RADIATOR HOSE 
    1. GTY1066182Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. DISCONNECT SUCTION HOSE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 18
  28. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 19
  29. 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. GTY1075275Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  30. DISCONNECT NO. 5 INVERTER COOLING HOSE 
    1. GTY1076017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  31. DISCONNECT NO. 5 WATER BY-PASS HOSE 
    1. GTY1075274Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. SEPARATE STEERING INTERMEDIATE SHAFT ASSEMBLY 
    Refer to PROCEDURE - Step 5
    NOTE:

    If matchmarks were not placed when removing parts related to steering operation, perform automatic rack centering.

  33. REMOVE ENGINE UNDER COVER HEAT INSULATOR 

    Refer to PROCEDURE - Step 4

  34. REMOVE FRONT FLOOR COVER LH 
    Refer to PROCEDURE - Step 5
  35. REMOVE FRONT FLOOR COVER RH 
    1. GTY1075403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 2 bolts, 3 screws and clip.
      2. Turn the 3 clips and remove the front floor cover RH from the vehicle body.
        NOTE:

        If the 3 clips are not turned when the front floor cover RH is removed, the front floor cover RH or stud bolt may be damaged.

        HINT: 

        Do not remove the clips from the front floor cover RH.

  36. REMOVE FRONT CENTER FLOOR COVER RH 

    Refer to PROCEDURE - Step 6

  37. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) 
    Refer to PROCEDURE - Step 3
  38. REMOVE FRONT DRIVE SHAFT ASSEMBLY 

    Refer to REMOVAL [11/2021 - ]

  39. SEPARATE TIE ROD ASSEMBLY LH 
    Refer to PROCEDURE - Step 6
  40. SEPARATE TIE ROD ASSEMBLY RH 
    1. Perform the same procedure as for the LH side.
  41. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE 
    1. GTY1075990Courtesy 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.
    2. GTY1076131Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/ Suspension Tower Damper - -
      Bolt Nut
  42. REMOVE FUEL DELIVERY GUARD 
    1. GTY1075032Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  43. INSTALL ENGINE HANGERS 
    1. GTY1075492Courtesy 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 12281-25030
        No. 2 Engine Hanger 12282-25010
        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.
  44. REMOVE STEERING GEAR HEAT INSULATOR 

    Refer to PROCEDURE - Step 12

  45. DISCONNECT ENGINE WIRE 
    Refer to PROCEDURE - Step 6
  46. REMOVE FLYWHEEL HOUSING UNDER COVER 
    1. GTY997771Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  47. REMOVE HV AIR CONDITIONING WIRE 
    1. GTY1074836Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Green-colored Lock - -
      Slide - -
      1. Disengage the 2 clamps.
      2. Using a screwdriver, slide the green-colored lock of the connector as shown in the illustration to release it and disconnect the connector.
        WARNING:

        Make sure to wear insulated gloves.

        NOTE:

        Insulate the disconnected terminals and connector with insulating tape.

      3. Remove the 2 bolts and disengage the guide to remove the HV air conditioning wire from the hybrid vehicle transaxle assembly.
  48. REMOVE STARTER HOLE INSULATOR 

    Refer to PROCEDURE - Step 9

  49. REMOVE FLYWHEEL HOUSING SIDE COVER 

    Refer to PROCEDURE - Step 10

  50. REMOVE FRONT FRAME ASSEMBLY 

    Refer to PROCEDURE - Step 7

  51. REMOVE FRONT ENGINE MOUNTING INSULATOR 

    HINT: 

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

    1. GTY997787Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  52. REMOVE REAR ENGINE MOUNTING INSULATOR 

    HINT: 

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

    1. GTY1075024Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  53. REMOVE HYBRID VEHICLE TRANSAXLE ASSEMBLY 
    Refer to PROCEDURE - Step 16
  54. REMOVE TRANSMISSION INPUT DAMPER ASSEMBLY 
    See step  2
  55. REMOVE FLYWHEEL SUB-ASSEMBLY 
    See step  3
  56. REMOVE NO. 1 CRANKSHAFT POSITION SENSOR PLATE 

    See step  4

  57. REMOVE ENGINE WIRE 

    HINT: 

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

    GTY997772Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  58. INSTALL ENGINE ASSEMBLY TO ENGINE STAND 
    1. GTY996339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  59. REMOVE ENGINE HANGERS 
  60. DISCONNECT INVERTER RESERVE TANK ASSEMBLY 

    HINT: 

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

    1. GTY997805Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  61. 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. GTY997806Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  62. REMOVE ENGINE MOUNTING SPACER 

    HINT: 

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

    1. GTY1075029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  63. REMOVE ENGINE MOUNTING INSULATOR SUB-ASSEMBLY LH 

    HINT: 

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

    1. GTY1075026Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002