Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Removal

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Engine & Hybrid System / 2gr-fks (engine Mechanical) / Cylinder Head Gasket / Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during engine unit removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
*1: When performing learning using the Techstream.

Click here

Disconnect cable from negative battery terminal

Memorize steering angle neutral point

Lane Control System

Pre-collision system

Intelligent clearance sonar system*1

Lighting system (w/ Automatic Headlight Beam Level Control System)

Parking assist monitor system

Panoramic view monitor system

Initialize back door lock

Power door lock control system

Reset back door close position

Power Back Door System (w/ Outside Door Control Switch)

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU Communication ID Registration (Immobiliser system)

Engine start function

Perform code registration (Immobiliser system)
  • Wireless door lock control system
  • Smart access system with push-button start
  • Engine start function
  • Steering lock system
  • Telematics system

  • Replacement of camshaft (for intake or exhaust camshaft)
  • Replacement of camshaft timing gear assembly
  • Replacement of camshaft timing exhaust gear assembly
  • Replacement of fuel injector assembly (for port injection)
  • Replacement of fuel injector assembly (for direct injection)
  • Replacement of fuel pump assembly (for high pressure side)
  • Replacement of ignition coil assembly
  • Air leaks from intake system
  • Gas leak from exhaust system is repaired
  • Replacement of knock control sensor

Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.

Replacement of automatic transaxle assembly

Perform the following procedures in the order shown:

  1. Input transaxle compensation code into ECM
  2. Perform road test to allow ECM to learn
  • Large shift shock
  • Deterioration of fuel efficiency

for U881E Registration:

for U881E Initialization:

for U881F Registration:

for U881F Initialization:

Replacement of ECM

(If possible, read the transaxle compensation code from the previous ECM)

Perform the following procedures in the order shown:

  1. Transfer transaxle compensation code
  2. Perform road test to allow ECM to learn

Replacement of ECM

(If impossible, read the transaxle compensation code from the previous ECM)

Perform the following procedures in the order shown:

  1. Reset transaxle compensation code
  2. Perform road test to allow ECM to learn

Front wheel alignment adjustment

Calibration
  • VSC disabled or malfunctions
  • DTCs are stored
  • Slip indicator light illuminates
  • ABS warning light illuminates

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)
  • Ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent clearance sonar system
  • Intuitive parking assist system (w/ Intelligent Clearance Sonar System)

Rear television camera assembly optical axis (Back camera position setting)

Parking assist monitor system

for Initialization:

for Calibration:

  • Parking assist ECU initialization
  • Adjust steering angle

Panoramic view monitor system

for Initialization:

for Calibration:

Initialize No. 1 headlight ECU sub-assembly LH

Lighting System (w/ Automatic Headlight Beam Level Control System)

PROCEDURE

1. INSTALL ENGINE ASSEMBLY TO ENGINE STAND

Click here

2. REMOVE ENGINE HANGERS

Click here

3. REMOVE KNOCK CONTROL SENSOR

Click here

4. REMOVE IGNITION COIL ASSEMBLY

Click here

5. REMOVE VACUUM PUMP ASSEMBLY

Click here

6. REMOVE V-RIBBED BELT

Click here

7. REMOVE GENERATOR ASSEMBLY

  • for 180A Type:

    Click here

  • for 150A Type:

    Click here

8. REMOVE COMPRESSOR AND MAGNETIC CLUTCH

Click here

9. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY

Click here

10. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY

Click here

11. REMOVE WATER PUMP PULLEY

Click here

12. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

Click here

13. REMOVE NO. 5 CYLINDER BLOCK INSULATOR (w/ Oil Cooler)

Click here

14. REMOVE WIRE HARNESS CLAMP BRACKET

Click here

15. REMOVE RADIATOR PIPE CLAMP

Click here

16. REMOVE CRANKSHAFT PULLEY

Click here

17. REMOVE FRONT NO. 1 ENGINE MOUNTING BRACKET LH

Click here

18. DISCONNECT WATER BY-PASS HOSE

Click here

19. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

Click here

20. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 1)

Click here

21. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 1)

Click here

22. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 2)

Click here

23. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 2)

Click here

24. REMOVE VVT SENSOR (for Intake Side of Bank 1)

Click here

25. REMOVE VVT SENSOR (for Exhaust Side of Bank 1)

Click here

26. REMOVE VVT SENSOR (for Intake Side of Bank 2)

Click here

27. REMOVE VVT SENSOR (for Exhaust Side of Bank 2)

Click here

28. REMOVE CRANKSHAFT POSITION SENSOR PROTECTOR

Click here

29. REMOVE SENSOR WIRE

Click here

30. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

Click here

31. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH

Click here

32. REMOVE SPARK PLUG TUBE GASKET

Click here

33. REMOVE OIL COOLER ASSEMBLY (w/ Oil Cooler)

Click here

34. REMOVE OIL COOLER PIPE (w/ Oil Cooler)

Click here

35. REMOVE NO. 2 OIL PAN SUB-ASSEMBLY

Click here

36. REMOVE OIL STRAINER SUB-ASSEMBLY

Click here

37. REMOVE OIL PAN SUB-ASSEMBLY

(a) Remove the 16 bolts and 2 nuts from the oil pan sub-assembly.

NOTICE:

Make sure to clean the bolts and stud bolts and check the threads for cracks or other damage.

*a

Nut

(b) Remove the oil pan sub-assembly by prying between the oil pan sub-assembly and timing chain cover assembly or cylinder block sub-assembly with a screwdriver wrapped with protective tape.

NOTICE:

Be careful not to damage the contact surfaces of the cylinder block sub-assembly, timing chain cover assembly and oil pan sub-assembly.

*a

Protective Tape

(c) Remove the 2 oil pan gaskets from the timing chain cover assembly.

38. REMOVE TIMING CHAIN COVER ASSEMBLY

Click here

39. REMOVE TIMING CHAIN CASE OIL SEAL

Click here

40. SET NO. 1 CYLINDER TO TDC (COMPRESSION)

Click here

41. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

Click here

42. REMOVE CHAIN TENSIONER SLIPPER

Click here

43. REMOVE CHAIN SUB-ASSEMBLY

Click here

44. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY, CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY AND NO. 2 CHAIN SUB-ASSEMBLY (for Bank 1)

Click here

45. REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY

Click here

46. REMOVE CAMSHAFT BEARING CAP (for Bank 1)

Click here

47. REMOVE CAMSHAFT

Click here

48. REMOVE NO. 2 CAMSHAFT

Click here

49. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY

Click here

50. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY, CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY AND NO. 2 CHAIN SUB-ASSEMBLY (for Bank 2)

Click here

51. REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY

Click here

52. REMOVE CAMSHAFT BEARING CAP (for Bank 2)

Click here

53. REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY

Click here

54. REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY

Click here

55. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY LH

Click here

56. REMOVE SENSOR WIRE

Click here

57. REMOVE NO. 1 CHAIN VIBRATION DAMPER

Click here

58. REMOVE NO. 2 CHAIN VIBRATION DAMPER

Click here

59. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

Click here

60. REMOVE VALVE LASH ADJUSTER ASSEMBLY

Click here

61. REMOVE VALVE STEM CAP

Click here

62. REMOVE WATER OUTLET

Click here

63. REMOVE CYLINDER HEAD SUB-ASSEMBLY

Click here

64. REMOVE CYLINDER HEAD GASKET

(a) Remove the cylinder head gasket from the cylinder block sub-assembly.

65. REMOVE CYLINDER HEAD LH

Click here

66. REMOVE NO. 2 CYLINDER HEAD GASKET

(a) Remove the No. 2 cylinder head gasket from the cylinder block sub-assembly.

67. INSPECT CYLINDER HEAD SET BOLT

Click here

    Components
    COMPONENTS ILLUSTRATION *A Type A *B Type B *C w/ Oil Cooler - - *1 IGNITION COIL ASSEMBLY *2 VACUUM PUMP ASSEMBLY *3 V-RIBBED BELT *4 GENERATOR ASSEMBLY *5 ...

    Installation
    INSTALLATION PROCEDURE 1. INSTALL NO. 2 CYLINDER HEAD GASKET (a) Place a new No. 2 cylinder head gasket on the cylinder block sub-assembly as shown in the illustration. *a Lot No. Front o ...

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