A25A-FKS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL; 2021 - 2022 MY Camry [10/2020

Last Modified: 11-20-2023	6.11:8.1.0	Doc ID: RM100000001RZ16
Model Year Start: 2021	Model: Camry	Prod Date Range: [10/2020 - 08/2022]
Title: A25A-FKS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL; 2021 - 2022 MY Camry [10/2020 - 08/2022]

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 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
Battery terminal is disconnected/reconnected	Perform steering sensor zero point calibration	Lane Tracing Assist System
	Perform steering sensor zero point calibration	Pre-collision system
	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	1 2
Replacement of engine assembly Gas leak from exhaust system is repaired Replacement of throttle body with motor assembly Replacement of cam timing control motor with EDU assembly Removal and installation of a cam timing control motor with EDU assembly Replacement of camshaft timing gear assembly Removal and installation of a camshaft timing gear assembly Replacement of cylinder head sub-assembly Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing exhaust gear assembly Replacement of port fuel injector assembly Replacement of direct fuel injector assembly Replacement of fuel pump assembly (for high pressure side) Replacement of engine coolant temperature sensor Replacement of spark plug Replacement of ignition coil assembly Replacement of EGR valve assembly Replacement of knock control sensor	Inspection After Repair	Poor idle, etc. Engine start function, etc.
Replacement of automatic transaxle assembly	Reset memory Input transaxle compensation code into ECM Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	for UB80E Initialization for UB80E Registration for UB80F Initialization for UB80F Registration
Replacement of ECM (If possible, read the transaxle compensation code from the previous ECM)	Reset memory*3 Transfer transaxle compensation code Perform road test to allow ECM to learn
Replacement of ECM (If impossible, read the transaxle compensation code from the previous ECM)	Reset memory*3 Reset transaxle compensation code Perform road test to allow ECM to learn
Automatic transaxle fluid	ATF thermal degradation estimate reset	The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly.	for UB80E for UB80F
Replacement of ECM*1	Code registration	Wireless door lock control system Smart key system (for Entry Function) Smart key system (for Start Function) Steering lock function
Replacement of ECM*2	Code registration	Wireless door lock control system Engine start
Yaw rate and acceleration sensor (airbag sensor assembly)	Perform "Reset Memory" Perform acceleration sensor zero point calibration and system information memorization	VSC disabled or malfunctioning DTCs are output Slip indicator light illuminated ABS warning light illuminated	4 5
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement)	Rear television camera assembly optical axis (Back camera position setting)	Parking assist monitor system	for Initialization: for Calibration:
Replacement of front bumper assembly (w/ Panoramic view monitor system)	Front television camera view adjustment	Panoramic view monitor system	for Initialization: for Calibration:
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement)	Television camera controller initialization Adjust steering angle Rear television camera assembly optical axis (Back camera position setting)	Panoramic view monitor system	for Initialization: for Calibration:
Front wheel alignment adjustment	Perform system variant learning and acceleration sensor zero point calibration.	VSC disabled or malfunctioning DTCs are output Slip indicator light illuminated ABS warning light illuminated	w/ Electric Parking Brake System: w/o Electric Parking Brake System:

*1: w/ Smart Key System
*2: w/o Smart Key System
*3: When the ECM is replaced with a new one, reset memory is unnecessary.
*4: w/ Electric Parking Brake System
*5: w/o Electric Parking Brake System

NOTICE:

This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

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PROCEDURE

1. REMOVE DRIVE SHAFT BEARING BRACKET

(a) for 2WD:

(1) Remove the 3 bolts and drive shaft bearing bracket.

(b) for AWD:

(1) Remove the 3 bolts and drive shaft bearing bracket.

2. REMOVE V-RIBBED BELT

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3. REMOVE GENERATOR ASSEMBLY

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4. REMOVE COMPRESSOR ASSEMBLY WITH PULLEY

(a) for Type A:

(1) Remove the 2 bolts and 2 nuts.

	Bolt
	Nut

(2) Using an E8 "TORX" socket wrench, remove the 2 stud bolts and compressor assembly with pulley.

(b) for Type B:

(1) Remove the 4 bolts and compressor assembly with pulley.

5. REMOVE NO. 2 ENGINE COVER

(a) Remove the 2 bolts and No. 2 engine cover from the No. 2 timing gear cover assembly.

6. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY

NOTICE:

Do not apply or add any oil or grease to the belt tensioner to prevent abnormal noises from the belt tensioner pulley, belt squealing, etc.
Do not allow oil or grease to adhere to the moving parts of the belt tensioner, as this may cause malfunctions.

If oil or grease is on the location indicated by the arrow, replace the V-ribbed belt tensioner assembly.

(a) Remove the 2 bolts and V-ribbed belt tensioner assembly from the No. 2 timing gear cover assembly.

7. REMOVE NO. 2 TIMING CHAIN COVER INSULATOR

(a) Remove the No. 2 timing chain cover insulator from the V-ribbed belt tensioner assembly.

8. REMOVE TIMING GEAR COVER INSULATOR

(a) Using an 8 mm socket wrench, remove the bolt, plate washer and timing gear cover insulator from the No. 2 timing gear cover assembly.

9. REMOVE NO. 3 TIMING CHAIN COVER (w/ Cover)

(a) Using an 8 mm socket wrench, remove the bolt, plate washer and No. 3 timing chain cover from the No. 2 timing gear cover assembly.

10. REMOVE NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY

(a) Slide the clip and disconnect the No. 2 water by-pass pipe sub-assembly from the outlet water by-pass sub-assembly.

(b) Remove the bolt and the No. 2 water by-pass pipe sub-assembly.

11. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY)

(a) Remove the bolt to disconnect the flow shutting valve (water by-pass hose assembly).

(b) Remove the 2 bolts and the water hose clamp bracket.

(c) Slide the clip and remove the flow shutting valve (water by-pass hose assembly) from the water by-pass outlet sub-assembly.

HINT:

Use a container to catch any engine coolant which flows out of the flow shutting valve (water by-pass hose assembly) and water by-pass outlet sub-assembly.

12. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

(a) Type A:

(1) Remove the 5 bolts and No. 1 exhaust manifold heat insulator from the exhaust manifold (TWC: Front Catalyst).

(b) Type B:

(1) Remove the 3 bolts and No. 1 exhaust manifold heat insulator from the exhaust manifold (TWC: Front Catalyst).

13. REMOVE MANIFOLD STAY

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14. REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst)

(a) Using a 12 mm deep socket wrench, remove the 7 nuts and the exhaust manifold (TWC: Front Catalyst) from the cylinder head sub-assembly.

(b) Remove the exhaust manifold to head gasket from the cylinder head sub-assembly.

15. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY

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16. REMOVE THROTTLE BODY GASKET

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17. REMOVE EGR COOLER ASSEMBLY

(a) Disconnect the water hose from the EGR cooler assembly.

*1	No. 3 Water By-pass Hose
*2	Water Hose

(b) Disconnect the No. 3 water by-pass hose from the EGR cooler assembly.

(1) Remove the 2 bolts, 3 nuts, EGR cooler assembly, EGR cooler gasket and EGR valve gasket.

	Bolt
	Nut

(d) Type B:

(1) Remove the 3 bolts, 2 nuts, EGR cooler assembly, EGR cooler gasket and EGR valve gasket.

	Bolt
	Nut

18. REMOVE NO. 1 EGR PIPE SUB-ASSEMBLY

(a) Using an 8 mm socket wrench, remove the 4 bolts, No. 1 EGR pipe sub-assembly, EGR inlet gasket and EGR valve adapter gasket.

19. REMOVE WATER HOSE

(a) Slide the clip and remove the water hose from the EGR valve assembly.

20. REMOVE EGR VALVE ASSEMBLY

(a) Slide the clip and disconnect the No. 8 water by-pass hose from the EGR valve assembly.

(b) Using an 8 mm socket wrench, remove the 2 bolts.

*a	Pin
*b	Hole

21. REMOVE NO. 3 WATER BY-PASS PIPE

(a) Using an 8 mm socket wrench, remove the bolt and No. 3 water by-pass pipe from the intake manifold.

(b) Slide the clip and disconnect the No. 3 water by-pass pipe from the water outlet.

22. REMOVE NO. 2 WATER BY-PASS PIPE

(a) Remove the bolt (A).

(b) Using an 8 mm socket wrench, remove the 2 bolts (B) and No. 2 water by-pass pipe.

23. REMOVE INTAKE MANIFOLD

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24. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET

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25. DISCONNECT FUEL TUBE SUB-ASSEMBLY

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26. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY

(a) Using an 8 mm socket wrench, remove the bolt.

(b) Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 1 fuel pipe sub-assembly.

27. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (for High Pressure)

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28. REMOVE NO. 7 WATER BY-PASS HOSE

(a) Slide the 2 clips and remove the No. 7 water by-pass hose.

29. REMOVE SENSOR WIRE

(a) Disconnect the 4 connectors.

(b) Disengage the 3 clamps.

30. REMOVE NO. 6 ENGINE WIRE

(a) Disconnect the 4 connectors.

(b) Disengage the 2 clamps.

31. REMOVE WIRE HARNESS CLAMP BRACKET

(a) Using an 8 mm socket wrench, remove the 2 bolts and wire harness clamp bracket from the No. 1 ventilation case.

32. REMOVE FUEL DELIVERY PIPE WITH SENSOR SUB-ASSEMBLY

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33. REMOVE NO. 1 DELIVERY PIPE SPACER

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34. REMOVE INJECTOR VIBRATION INSULATOR

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35. REMOVE NO. 5 ENGINE WIRE

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36. REMOVE PORT FUEL INJECTOR ASSEMBLY

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37. REMOVE FUEL DELIVERY PIPE

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38. REMOVE DIRECT FUEL INJECTOR ASSEMBLY

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39. REMOVE IGNITION COIL ASSEMBLY

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40. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

(a) Remove the engine oil level dipstick.

(b) Using an 8 mm socket wrench, remove the bolt and engine oil level dipstick guide from the camshaft housing sub-assembly.

41. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY

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42. REMOVE ENGINE WATER PUMP ASSEMBLY (WATER INLET HOUSING)

(a) Remove the 4 bolts, engine water pump assembly (water inlet housing) and gasket from the cylinder block sub-assembly.

43. REMOVE NO. 3 EXHAUST MANIFOLD HEAT INSULATOR

(a) Remove the bolt and No. 3 exhaust manifold heat insulator from the cylinder block sub-assembly.

44. REMOVE PURGE VALVE (PURGE VSV)

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45. REMOVE NO. 2 VACUUM SWITCHING VALVE BRACKET

(a) Using an 8 mm socket wrench, remove the 2 bolts and No. 2 vacuum switching valve bracket from the cylinder head sub-assembly.