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Removal [11/2021 - 03/2022]: Procedure

WARNING: This page is about a different car, the 2025 Lexus NX 250, 2024 Lexus NX 250, 2023 Lexus NX 250, and 2022 Lexus NX 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE DRIVE SHAFT BEARING BRACKET 
    1. GTY1076670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for 2WD *B for AWD
  2. REMOVE NO. 2 ENGINE COVER 
    1. GTY1076368Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE V-RIBBED BELT 
    Refer to PROCEDURE - Step 2
  4. REMOVE GENERATOR ASSEMBLY 

    Refer to PROCEDURE - Step 5

  5. REMOVE COMPRESSOR ASSEMBLY WITH PULLEY 
    Refer to PROCEDURE - Step 6
  6. 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. GTY1077153Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE NO. 2 TIMING CHAIN COVER INSULATOR 
    1. GTY1076879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY 
    1. GTY1077572Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY) 
    1. GTY1077142Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE NO. 2 WATER HOSE CLAMP BRACKET 
    1. GTY1077144Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. SEPARATE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 
    Refer to PROCEDURE - Step 10
  12. REMOVE MANIFOLD STAY 
    Refer to PROCEDURE - Step 12
  13. REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst) 
    Refer to PROCEDURE - Step 13
  14. REMOVE EXHAUST MANIFOLD TO HEAD GASKET 

    Refer to PROCEDURE - Step 14

  15. DISCONNECT NO. 6 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 8

  16. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 
    Refer to PROCEDURE - Step 9
  17. DISCONNECT NO. 5 WATER BY-PASS HOSE 
    Refer to PROCEDURE - Step 10
  18. REMOVE THROTTLE BODY GASKET 

    Refer to PROCEDURE - Step 11

  19. DISCONNECT NO. 3 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 8

  20. DISCONNECT NO. 4 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 9

  21. REMOVE EGR COOLER ASSEMBLY 

    Refer to PROCEDURE - Step 10

  22. REMOVE EGR VALVE GASKET 

    Refer to PROCEDURE - Step 11

  23. REMOVE NO. 1 EGR COOLER GASKET 

    Refer to PROCEDURE - Step 12

  24. REMOVE NO. 1 EGR PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 3
  25. REMOVE EGR VALVE ADAPTER GASKET 

    Refer to PROCEDURE - Step 4

  26. REMOVE EGR INLET GASKET 

    Refer to PROCEDURE - Step 5

  27. REMOVE NO. 4 WATER BY-PASS HOSE 

    Refer to PROCEDURE - Step 7

  28. REMOVE EGR VALVE ASSEMBLY 
    Refer to PROCEDURE - Step 8
  29. REMOVE NO. 3 WATER BY-PASS PIPE 
    1. GTY1077164Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the bolt and disconnect the No. 3 water by-pass pipe from the intake manifold.
      2. Slide the clip and remove the No. 3 water by-pass pipe from the water outlet.
  30. REMOVE NO. 2 WATER BY-PASS PIPE 
    Refer to PROCEDURE - Step 9
  31. REMOVE INTAKE MANIFOLD 
    Refer to PROCEDURE - Step 11
  32. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET 

    Refer to PROCEDURE - Step 12

  33. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 5
  34. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 6
  35. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 
    Refer to PROCEDURE - Step 7
  36. REMOVE FUEL PUMP SPACER GASKET 

    Refer to PROCEDURE - Step 8

  37. REMOVE FUEL PUMP LIFTER ASSEMBLY 

    Refer to PROCEDURE - Step 9

  38. REMOVE NO. 7 WATER BY-PASS HOSE 
    1. GTY1077570Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  39. REMOVE SENSOR WIRE 
    1. GTY1075877Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Disconnect the 4 connectors.
      2. Disengage the 3 clamps.
      3. Using an 8 mm socket wrench, remove the bolt and sensor wire from the water inlet with thermostat sub-assembly.
  40. REMOVE NO. 6 ENGINE WIRE 
    1. GTY997954Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  41. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY 
    Refer to PROCEDURE - Step 4
  42. REMOVE NO. 1 DELIVERY PIPE SPACER 

    Refer to PROCEDURE - Step 5

  43. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 6

  44. REMOVE NO. 5 ENGINE WIRE 

    Refer to PROCEDURE - Step 7

  45. REMOVE PORT FUEL INJECTOR ASSEMBLY 
    Refer to PROCEDURE - Step 8
  46. REMOVE FUEL DELIVERY PIPE 
    Refer to PROCEDURE - Step 3
  47. REMOVE DIRECT FUEL INJECTOR ASSEMBLY 
    Refer to PROCEDURE - Step 4
  48. REMOVE NOZZLE HOLDER CLAMP 

    Refer to PROCEDURE - Step 5

  49. REMOVE NO. 3 FUEL INJECTOR BACK-UP RING 
    Refer to PROCEDURE - Step 6
  50. REMOVE NO. 1 FUEL INJECTOR BACK-UP RING 

    Refer to PROCEDURE - Step 7

  51. REMOVE C-RING 

    Refer to PROCEDURE - Step 8

  52. REMOVE INJECTOR VIBRATION INSULATOR 

    Refer to PROCEDURE - Step 9

  53. REMOVE FUEL INJECTOR SEAL 
    Refer to PROCEDURE - Step 10
  54. REMOVE IGNITION COIL ASSEMBLY 
    Refer to PROCEDURE - Step 2
  55. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE 
    1. GTY1076257Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the engine oil level dipstick.
      2. Using an 8 mm socket wrench, remove the bolt and engine oil level dipstick guide from the camshaft housing sub-assembly.
      3. Remove the O-ring from the engine oil level dipstick guide.
  56. REMOVE NO. 3 EXHAUST MANIFOLD HEAT INSULATOR 
    1. GTY997953Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  57. REMOVE PURGE VALVE (PURGE VSV) 

    Refer to PROCEDURE - Step 3

  58. REMOVE NO. 2 VACUUM SWITCHING VALVE BRACKET 
    1. GTY1076840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the 2 bolts and No. 2 vacuum switching valve bracket from the camshaft housing sub-assembly.
  59. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. GTY1075257Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an 8 mm socket wrench, remove the 2 bolts and wire harness clamp bracket from the No. 1 ventilation case.
  60. REMOVE STUD BOLT 
    NOTE:

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

    1. GTY1076228Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using an E8 "TORX" socket wrench, remove the stud bolt from the timing chain cover assembly.