Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001I1J0 |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [03/2019 - 09/2022] |
Title: 2ZR-FAE (ENGINE MECHANICAL): CYLINDER HEAD GASKET: REMOVAL; 2020 - 2022 MY Corolla [03/2019 - 09/2022] |
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 Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure
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Necessary Procedure
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Effect/Inoperative Function when Necessary Procedure not Performed
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Link
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Battery terminal is disconnected/reconnected
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Perform steering sensor zero point calibration
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Lane Control System
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Pre-collision System
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Lighting System (w/ AFS)(EXT)
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Replacement of ECM
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Vehicle Identification Number (VIN) registration
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MIL comes on
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ECU communication ID registration (Immobiliser system)
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Engine start function
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Reset memory
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Deceleration sensor zero point calibration
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CVT oil pressure calibration
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Large shift shock
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Deterioration of fuel efficiency
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Replacement of ECM*1
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Code registration (Smart Key System (for Gasoline Model, Start Function))
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Wireless Door Lock Control System (for Gasoline Model with Smart Key System)
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Smart Key System (for Gasoline Model, Entry Function)
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Smart Key System (for Gasoline Model, Start Function)
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Steering lock function
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Replacement of ECM*2
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Code registration (Immobiliser system)
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Engine start
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Replacement of throttle body assembly
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Replacement of engine assembly
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Replacement of cylinder head sub-assembly
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Replacement of camshaft timing gear assembly
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Replacement of camshaft timing exhaust gear assembly
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Replacement of fuel injector assembly
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Replacement of ignition coil assembly
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Gas leak from exhaust system is repaired
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Inspection After Repair
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Poor idle, etc.
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Engine start function, etc.
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Suspension, tires, etc.
(The vehicle height changes because of suspension or tire replacement)
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Perform headlight ECU sub-assembly LH initialization
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Lighting system (w/ AFS)(EXT)
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Front wheel alignment adjustment
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Perform "Reset Memory".
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Perform acceleration sensor zero point calibration and store system information memorization.
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VSC is disabled or malfunctions
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DTCs are output
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Slip indicator light illuminates
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ABS warning light illuminates
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w/ Electric Parking Brake System:
w/o Electric Parking Brake System:
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CVT fluid
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ATF thermal degradation estimate reset
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The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly
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for K313
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NOTICE:
After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System and Audio and Visual System (for Gasoline Model))
PROCEDURE
1. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY
Click here
2. REMOVE NO. 1 WATER BY-PASS PIPE
Click here
3. REMOVE CYLINDER HEAD SUB-ASSEMBLY
(a) Using a 10 mm bi-hexagon socket wrench, uniformly loosen and remove the 10 cylinder head set bolts and 10 cylinder head set plate washers in several steps in the order shown in the illustration.
NOTICE:
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Do not drop the cylinder head set plate washers into the cylinder head sub-assembly.
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Removing the cylinder head set bolts in the incorrect order may cause warpage or cracking of the cylinder head sub-assembly.
HINT:
Arrange the removed parts in such a way that they can be reinstalled to their original locations.
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(b) Remove the cylinder head sub-assembly from the cylinder block sub-assembly.
4. REMOVE CYLINDER HEAD GASKET
(a) Remove the cylinder head gasket from the cylinder block sub-assembly.
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5. INSPECT CYLINDER HEAD FOR FLATNESS
Click here
6. INSPECT CYLINDER HEAD SET BOLT
Click here
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