CYLINDER HEAD GASKET 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
Disconnect cable from negative battery terminal		Memorize steering angle neutral point	LKA/LDA System	Click here
			Intelligent clearance sonar system*2
			Pre-crash safety system
			Lighting system (EXT) Cornering lights
			Adaptive high beam system
			Parking Assist Monitor System (w/ Parallel Parking Assist Function)	Click here
			Parking Assist Monitor System (w/o Parallel Parking Assist Function)	Click here
			Panoramic view monitor system	Click here
		Initialize back door lock	Power door lock control system	Click here
		Reset back door close position	Power back door system	Click here
Replacement of ECM		Perform Vehicle Identification Number (VIN) or frame number registration	MIL illuminates / - DTC P063051 is stored	for 2GR-FKS (w/ Canister Pump Module): Click here for 2GR-FKS (w/o Canister Pump Module) Click here
		ECU Communication ID Registration (Immobiliser system)	Engine start function	See Service Bulletin for the registration method.
		Perform code registration (Immobiliser system)	Wireless door lock control system Entry and start system Engine start function Steering lock system Telematics system	See Service Bulletin for the registration method.
Replacement of ECM (If possible, read the transaxle compensation code from the previous ECM)	Possible to read transaxle compensation code	Perform the following procedures in the order shown: Transfer Transaxle Compensation Code Perform Road Test to Allow ECM to Learn	Large shift shock Deterioration of fuel efficiency	Click here for Initialization (U881E) Click here for Registration (U881E) Click here for Initialization (U881F) Click here for Registration (U881F)
	Impossible to read transaxle compensation code	Perform the following procedures in the order shown: Reset Transaxle Compensation Code Perform Road Test to Allow ECM to Learn	Large shift shock Deterioration of fuel efficiency
w/ Canister Pump Module 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 Replacement of Heated oxygen sensor		Inspection After Repair	Poor idle, etc. Engine start function, etc.	Click here
w/o Canister Pump Module 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.	Click here
Replacement of automatic transaxle assembly		Perform the following procedures in the order shown: Reset Memory Input Transaxle Compensation Code into ECM Perform Road Test to Allow ECM to Learn	Large shift shock Deterioration of fuel efficiency	for U881E Initialization: Click here for U881E Registration: Click here for U881F Initialization: Click here for U881F Registration: Click here
Front wheel alignment adjustment		Clear zero point calibration data and store system information. Perform yaw rate and acceleration sensor zero point calibration and store system information.	VSC disabled or malfunctions DTCs are stored Slip indicator light illuminates ABS warning light illuminates Theft deterrent system (tilt sensor)*1	Click here
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 LEXUS parking assist-sensor system (w/ Intelligent Clearance Sonar System)	Click here
		Rear television camera assembly optical axis (Back camera position setting)	Parking assist monitor system (w/ Parallel Parking Assist Function)	for Initialization: Click here for Calibration: Click here
			Parking assist monitor system (w/o Parallel Parking Assist Function)	for Initialization: Click here for Calibration: Click here
		Parking assist ECU initialization Adjust steering angle	Panoramic view monitor system	for Initialization: Click here for Calibration: Click here
		Initialize headlight ECU sub-assembly LH	Adaptive high beam system Automatic headlight beam level control system	Click here

*1: w/ TFT Meter Type
*2: When performing learning using the GTS.
Click here Click here

PROCEDURE

INSTALL ENGINE ASSEMBLY TO ENGINE STAND

Click here
REMOVE ENGINE HANGERS

Click here
REMOVE KNOCK CONTROL SENSOR

Click here
REMOVE IGNITION COIL ASSEMBLY

Click here
REMOVE VACUUM PUMP ASSEMBLY

Click here
REMOVE V-RIBBED BELT

Click here
REMOVE GENERATOR ASSEMBLY

Click here
REMOVE COMPRESSOR AND MAGNETIC CLUTCH

Click here
REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY

Click here
REMOVE V-RIBBED BELT TENSIONER ASSEMBLY

Click here
REMOVE WATER PUMP PULLEY

Click here
REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

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

Click here
REMOVE WIRE HARNESS CLAMP BRACKET

Click here
REMOVE RADIATOR PIPE CLAMP

Click here
REMOVE CRANKSHAFT PULLEY

Click here
REMOVE FRONT NO. 1 ENGINE MOUNTING BRACKET LH

Click here
DISCONNECT WATER BY-PASS HOSE

Click here
REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

Click here
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 1)

Click here
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 1)

Click here
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 2)

Click here
REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 2)

Click here
REMOVE VVT SENSOR (for Intake Side of Bank 1)

Click here
REMOVE VVT SENSOR (for Exhaust Side of Bank 1)

Click here
REMOVE VVT SENSOR (for Intake Side of Bank 2)

Click here
REMOVE VVT SENSOR (for Exhaust Side of Bank 2)

Click here
REMOVE CRANKSHAFT POSITION SENSOR PROTECTOR

Click here
REMOVE SENSOR WIRE

Click here
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

Click here
REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY LH

Click here
REMOVE SPARK PLUG TUBE GASKET

Click here
REMOVE OIL COOLER ASSEMBLY (w/ Oil Cooler)

Click here
REMOVE OIL COOLER PIPE (w/ Oil Cooler)

Click here
REMOVE NO. 2 OIL PAN SUB-ASSEMBLY

Click here
REMOVE OIL STRAINER SUB-ASSEMBLY

Click here
REMOVE OIL PAN SUB-ASSEMBLY
1. *a Nut
  
  Remove the 16 bolts and 2 nuts from the oil pan sub-assembly.
  
  Note
  
  Make sure to clean the bolts and stud bolts and check the threads for cracks or other damage.
2. *a Protective Tape
  
  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.
  
  Note
  
  Be careful not to damage the contact surfaces of the cylinder block sub-assembly, timing chain cover assembly and oil pan sub-assembly.
3. Remove the 2 oil pan gaskets from the timing chain cover assembly.
REMOVE TIMING CHAIN COVER ASSEMBLY

Click here
REMOVE TIMING CHAIN CASE OIL SEAL

Click here
SET NO. 1 CYLINDER TO TDC (COMPRESSION)

Click here
REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

Click here
REMOVE CHAIN TENSIONER SLIPPER

Click here
REMOVE CHAIN SUB-ASSEMBLY

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

Click here
REMOVE NO. 2 CHAIN TENSIONER ASSEMBLY

Click here
REMOVE CAMSHAFT BEARING CAP (for Bank 1)

Click here
REMOVE CAMSHAFT

Click here
REMOVE NO. 2 CAMSHAFT

Click here
REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY

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

Click here
REMOVE NO. 3 CHAIN TENSIONER ASSEMBLY

Click here
REMOVE CAMSHAFT BEARING CAP (for Bank 2)

Click here
REMOVE NO. 3 CAMSHAFT SUB-ASSEMBLY

Click here
REMOVE NO. 4 CAMSHAFT SUB-ASSEMBLY

Click here
REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY LH

Click here
REMOVE SENSOR WIRE

Click here
REMOVE NO. 1 CHAIN VIBRATION DAMPER

Click here
REMOVE NO. 2 CHAIN VIBRATION DAMPER

Click here
REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

Click here
REMOVE VALVE LASH ADJUSTER ASSEMBLY

Click here
REMOVE VALVE STEM CAP

Click here
REMOVE WATER OUTLET

Click here
REMOVE CYLINDER HEAD SUB-ASSEMBLY

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REMOVE CYLINDER HEAD GASKET
1. Remove the cylinder head gasket from the cylinder block sub-assembly.
REMOVE CYLINDER HEAD LH

Click here
REMOVE NO. 2 CYLINDER HEAD GASKET
1. Remove the No. 2 cylinder head gasket from the cylinder block sub-assembly.
INSPECT CYLINDER HEAD SET BOLT

Click here