Toyota Avalon Service & Repair Manual: 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 cylinder head gasket 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

Battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

Pre-collision system

Intelligent Clearance Sonar System*1

Lighting System (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking Assist Monitor System

Panoramic View Monitor System

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU communication ID registration (Immobiliser system)

Engine start function

  • Replacement of throttle body with motor assembly
  • Cleaning the deposits from the throttle body with motor assembly
  • 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 reset memory
  • Input transaxle compensation code into ECM
  • Perform road test to allow ECM to learn
  • Large shift shock
  • Deterioration of fuel efficiency

for Initialization

for Registration

Replacement of ECM

(If transaxle compensation code read from ECM)

  • Perform reset memory*2
  • Transfer transaxle compensation code
  • Perform road test to allow ECM to learn

Replacement of ECM

(If transaxle compensation code not read from ECM)

  • Perform reset memory*2
  • Reset transaxle compensation code
  • Perform road test to allow ECM to learn

Replacement of automatic transaxle fluid

ATF thermal degradation estimate reset

The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly

Replacement of ECM

Code registration (Smart Key System (for Start Function))

  • Wireless Door Lock Control System
  • Smart Key System (for Entry Function)
  • Smart Key System (for Start Function)
  • Steering lock function

Suspension, tires, etc.

  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

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

Parking Assist Monitor System

for Initialization

for Calibration

  • Parking assist ECU initialization
  • Adjust steering angle
  • Television camera assembly optical axis adjustment (Back camera position setting)

Panoramic View Monitor System

for Initialization

for Calibration

Perform headlight ECU sub-assembly LH initialization

Lighting system (for Gasoline Model with Cornering Light)

Front wheel alignment adjustment

Perform system variant learning and acceleration sensor zero point calibration.

  • VSC is disabled or malfunctions
  • DTCs are output
  • Slip indicator light illuminates
  • ABS warning light illuminates

  • *1: When performing learning using the Techstream.

    Click here

  • *2: Not necessary when ECM replaced with new one.

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

Click here

8. REMOVE COMPRESSOR ASSEMBLY WITH 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 WIRE HARNESS CLAMP BRACKET

Click here

14. REMOVE WATER FILLER BRACKET

Click here

15. REMOVE CRANKSHAFT PULLEY

Click here

16. REMOVE FRONT NO. 1 ENGINE MOUNTING BRACKET LH

Click here

17. DISCONNECT WATER BY-PASS HOSE

Click here

18. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

Click here

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

Click here

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

Click here

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

Click here

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

Click here

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

Click here

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

Click here

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

Click here

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

Click here

27. REMOVE CRANKSHAFT POSITION SENSOR PROTECTOR

Click here

28. REMOVE SENSOR WIRE

Click here

29. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

Click here

30. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH

Click here

31. REMOVE SPARK PLUG TUBE GASKET

Click here

32. REMOVE NO. 2 OIL PAN SUB-ASSEMBLY

Click here

33. REMOVE OIL STRAINER SUB-ASSEMBLY

Click here

34. 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.

35. REMOVE TIMING CHAIN COVER ASSEMBLY

Click here

36. REMOVE TIMING GEAR CASE OR TIMING CHAIN CASE OIL SEAL

Click here

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

Click here

38. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

Click here

39. REMOVE CHAIN TENSIONER SLIPPER

Click here

40. REMOVE CHAIN SUB-ASSEMBLY

Click here

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

Click here

42. REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY

Click here

43. REMOVE CAMSHAFT BEARING CAP (for Bank 1)

Click here

44. REMOVE CAMSHAFT

Click here

45. REMOVE NO. 2 CAMSHAFT

Click here

46. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY

Click here

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

Click here

48. REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY

Click here

49. REMOVE CAMSHAFT BEARING CAP (for Bank 2)

Click here

50. REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY

Click here

51. REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY

Click here

52. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY LH

Click here

53. REMOVE SENSOR WIRE

Click here

54. REMOVE NO. 1 CHAIN VIBRATION DAMPER

Click here

55. REMOVE NO. 2 CHAIN VIBRATION DAMPER

Click here

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

Click here

57. REMOVE VALVE LASH ADJUSTER ASSEMBLY

Click here

58. REMOVE VALVE STEM CAP

Click here

59. REMOVE WATER OUTLET

Click here

60. REMOVE CYLINDER HEAD SUB-ASSEMBLY

Click here

61. REMOVE CYLINDER HEAD GASKET

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

62. REMOVE CYLINDER HEAD LH

Click here

63. REMOVE NO. 2 CYLINDER HEAD GASKET

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

64. INSPECT CYLINDER HEAD SET BOLT

Click here

    Installation

    Cylinder Head

    See More:

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