Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / 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 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
	Memorize steering angle neutral point	Panoramic View Monitor System
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on
Replacement of ECM	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.
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*2: Not necessary when ECM replaced with new one.

PROCEDURE

1. INSTALL ENGINE ASSEMBLY TO ENGINE STAND

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2. REMOVE ENGINE HANGERS

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3. REMOVE KNOCK CONTROL SENSOR

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4. REMOVE IGNITION COIL ASSEMBLY

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5. REMOVE VACUUM PUMP ASSEMBLY

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6. REMOVE V-RIBBED BELT

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7. REMOVE GENERATOR ASSEMBLY

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8. REMOVE COMPRESSOR ASSEMBLY WITH MAGNETIC CLUTCH

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9. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY

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10. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY

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11. REMOVE WATER PUMP PULLEY

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12. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

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13. REMOVE WIRE HARNESS CLAMP BRACKET

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14. REMOVE WATER FILLER BRACKET

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15. REMOVE CRANKSHAFT PULLEY

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16. REMOVE FRONT NO. 1 ENGINE MOUNTING BRACKET LH

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17. DISCONNECT WATER BY-PASS HOSE

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18. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

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

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

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

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

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

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

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

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

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27. REMOVE CRANKSHAFT POSITION SENSOR PROTECTOR

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28. REMOVE SENSOR WIRE

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29. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

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30. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH

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31. REMOVE SPARK PLUG TUBE GASKET

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32. REMOVE NO. 2 OIL PAN SUB-ASSEMBLY

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33. REMOVE OIL STRAINER SUB-ASSEMBLY

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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.

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

35. REMOVE TIMING CHAIN COVER ASSEMBLY

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

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

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38. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

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39. REMOVE CHAIN TENSIONER SLIPPER

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40. REMOVE CHAIN SUB-ASSEMBLY

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

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42. REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY

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43. REMOVE CAMSHAFT BEARING CAP (for Bank 1)

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44. REMOVE CAMSHAFT

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45. REMOVE NO. 2 CAMSHAFT

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46. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY

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

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48. REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY

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49. REMOVE CAMSHAFT BEARING CAP (for Bank 2)

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50. REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY

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51. REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY

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52. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY LH

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53. REMOVE SENSOR WIRE

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54. REMOVE NO. 1 CHAIN VIBRATION DAMPER

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55. REMOVE NO. 2 CHAIN VIBRATION DAMPER

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

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57. REMOVE VALVE LASH ADJUSTER ASSEMBLY

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58. REMOVE VALVE STEM CAP

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59. REMOVE WATER OUTLET

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60. REMOVE CYLINDER HEAD SUB-ASSEMBLY

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61. REMOVE CYLINDER HEAD GASKET

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

62. REMOVE CYLINDER HEAD LH

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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

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Installation

Cylinder Head

See More:

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Gasoline Model): VSC does not Operate or VSC does not Operate Correctly
DESCRIPTION When TRAC or VSC is operating, the skid control ECU (brake actuator assembly) blinks the slip indicator light to inform the driver that slippage occurred. When a communication malfunction with the ECM is detected, TRAC and VSC are disabled. Also, TRAC and VSC are disabled when a DTC is s ...

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Removal

Installation

Cylinder Head

See More:

Toyota Avalon (XX50) 2019-2022 Owners Manual

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual