Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM10000000105GV
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): TRANSMISSION WIRE: REMOVAL; 2017 - 2020 MY Sienna [08/2016 -        ]

REMOVAL

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Click here 2017 MY Sienna [08/2016 - 11/2017]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2018 - 2020 MY Sienna [11/2017 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

3. REMOVE FRONT WHEEL LH

4. REMOVE NO. 1 ENGINE UNDER COVER

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

5. REMOVE NO. 2 ENGINE UNDER COVER

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

6. REMOVE FRONT FENDER APRON SEAL LH

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

7. DRAIN AUTOMATIC TRANSAXLE FLUID

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): DIFFERENTIAL OIL SEAL(for LH Side): REPLACEMENT+

8. REMOVE WINDSHIELD WIPER MOTOR AND LINK

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; WIPER / WASHER: FRONT WIPER MOTOR: REMOVAL

9. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; FRONT SUSPENSION: FRONT SHOCK ABSORBER: REMOVAL+

10. REMOVE V-BANK COVER SUB-ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

11. REMOVE BATTERY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

12. REMOVE AIR CLEANER INLET ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

13. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

14. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

15. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

16. REMOVE AIR CLEANER BRACKET

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

17. REMOVE DUTY VACUUM SWITCHING VALVE

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): VACUUM SWITCHING VALVE(for Engine Mounting): REMOVAL+

18. REMOVE VACUUM SURGE TANK WITH BRACKET

(a) Disconnect the 2 vacuum hose sub-assembly from the vacuum surge tank.

(b) Remove the 2 bolts and vacuum surge tank with bracket from the front engine mounting bracket.

19. REMOVE TRANSMISSION OIL THERMOSTAT

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): OIL COOLER: REMOVAL+

20. REMOVE FRONT SUSPENSION MEMBER DYNAMIC DAMPER

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; FRONT SUSPENSION: FRONT SUSPENSION MEMBER (When Not Using the Engine Support Bridge): REMOVAL+

21. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (ENGINE CONTROL): THROTTLE BODY: REMOVAL

22. DISCONNECT VENTILATION HOSE

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

23. DISCONNECT PURGE VALVE (PURGE VSV)

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

24. REMOVE NO. 2 SURGE TANK STAY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

25. REMOVE INTAKE AIR SURGE TANK ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

26. REMOVE AIR SURGE TANK TO INTAKE MANIFOLD GASKET

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

27. REMOVE WIRE HARNESS CLAMP BRACKET

(a) Disconnect the air fuel ratio sensor (for Bank 1) connector.

(b) Disengage the hose clamp and 3 wire harness clamps.

*a

Hose Clamp

*b

Wire Harness Clamp

(c) Remove the bolt and wire harness clamp bracket from the cylinder head RH.

28. INSTALL ENGINE HANGER

(a) Install the SST (engine hanger attachment) to the cylinder head RH.

SST: 09940-30010

91671-10825

Torque:

Bolt (A) :

33 N·m {337 kgf·cm, 24 ft·lbf}

Bolt (B) :

10 N·m {102 kgf·cm, 7 ft·lbf}

Item

Part No.

Bolt (B)

91551-80620

NOTICE:

Do not use any bolts other than the specified bolt.

(b) Install the SST (collar) and No. 1 engine hanger to the engine hanger attachment with the bolt.

Torque:

43 N·m {438 kgf·cm, 32 ft·lbf}

Item

Part No.

No. 1 Engine Hanger

12281-36020

Bolt

91552-81050

*1

No. 1 Engine Hanger

(c) Install the No. 2 engine hanger to the cylinder head LH with the 2 bolts.

Torque:

33 N·m {337 kgf·cm, 24 ft·lbf}

Item

Part No.

No. 2 Engine Hanger

12282-31100

Bolt

91671-10825

*1

No. 2 Engine Hanger

29. INSTALL ENGINE SUPPORT BRIDGE

(a) Install SST to the vehicle body as shown in the illustration.

*a

Support Shaft

*b

Front Side Member

*c

Cloth

*d

Front Side

*e

Front Suspension Nut

-

-

SST: 09940-10020

CAUTION:

  • Make sure that no oil or grease is on the front side member, and set the support shaft on the level surface of the front side member.

    *a

    Support Shaft

    *b

    Front Side Member
  • The engine support bridge may fall off if any oil or grease is still on or it is installed on the unlevel surface.

NOTICE:

  • Prevent SST from contacting the vehicle body exterior and windshield glass.
  • To prevent damage to the engine hood, place pieces of cloth between the engine hood and SST.
  • Lightly shake SST by hand to make sure it is securely installed before performing work.

(b) Turn the threaded portion of each support shaft to adjust its height until the sub beams are parallel to the ground.

*a

Support Shaft

*b

Sub Beam

*c

Front Side Member

*d

Threaded Portion

(c) Install the chain block to the sling bracket.

*a

Chain Block

*b

Sling Bracket

*c

Fuse Shackle

*d

Shackle (A)

(d) Install the division bar to the chain block with the shackles.

CAUTION:

  • Make sure the fuse shackle is on the chain block side and the shackle (A) is on the division bar side as shown in the illustration so that the fuse bolt is visible and can be checked for deformation easily.

    *a

    Fuse Shackle

    *b

    Shackle (A)
  • If the fuse shackle is installed upside down, deformation of the fuse bolt will not be visible and cannot be used to tell if the load capacity of the engine support bridge has been exceeded. If the load capacity is exceeded, it may cause the engine support bridge to damage the vehicle and the engine assembly with automatic transaxle assembly may fall.
  • Make sure that the fuse bolt of the fuse shackle is free of damage, such as deformation or cracks. If damaged, replace the fuse shackle.

    *a

    Fuse Shackle

    *b

    Fuse Bolt
  • If a deformed fuse bolt is used, it cannot be used to tell if the load capacity of the engine support bridge has been exceeded. If the load capacity is exceeded, it may cause the engine support bridge to damage the vehicle and the engine assembly with transaxle assembly may fall.

(e) Connect the division bar to the No. 1 engine hanger with the 2 shackles (A).

*1

No. 1 Engine Hanger

*2

No. 2 Engine Hanger

*a

Division Bar

*b

Shackle (A)

(f) Connect the division bar to the No. 2 engine hanger with the shackle (A).

(g) Make sure the distance between the chain block assembly and suspension ring is 120 mm (4.72 in.) or more.

*a

Chain Block Assembly

*b

Division Bar

*c

120 mm (4.72 in.) or more

-

-

HINT:

If the suspension height is less than 120 mm, adjust the links of the chain which connect the division bar and engine hanger.

(h) Adjust the position of the chain block assembly so that the chain is perpendicular to the SST main beam and sub beams as shown in the illustration.

*a

Chain Block Assembly

*b

Main Beam

*c

Sub Beam

*d

Dimension (A)

*e

Dimension (B)

*f

Correct

*g

Incorrect

*h

Right to Left Adjustment

*i

Front to Rear Adjustment

-

-

CAUTION:

  • To prevent the engine with automatic transaxle assembly from falling, make sure that the length of dimension (A) and dimension (B) are equal.
  • Do not perform any procedures if the length of dimension (A) and dimension (B) are not equal.

    *a

    Main Beam
  • Performing any procedure when the length of dimension (A) and dimension (B) are not equal may cause the engine assembly with automatic transaxle assembly and engine support bridge to fall, possibly causing serious injury.

(i) Confirm the appropriate installation state of the engine support bridge and tighten the 6 wing bolts and 2 bolts.

*a

Wing Bolt

*b

Bolt

Torque:

Bolt :

30 N·m {306 kgf·cm, 22 ft·lbf}

CAUTION:

  • Do not perform any procedures before tightening the bolts to the specified torque.
  • Performing procedures without tightening the bolts to the specified torque, may cause the engine support bridge to fall.

(j) Tighten the chain block assembly until it cannot be moved any further by hand.

*a

Turn

*a

41 N*m (418 kgf*cm, 30 ft.*lbf) or more
  • When suspending the engine with automatic transaxle assembly, do not tighten the chain block assembly more than 41 N*m (418 kgf*cm, 30 ft.*lbf).
  • Tightening the chain block assembly more than 41 N*m (418 kgf*cm, 30 ft.*lbf) will cause the load capacity (400 kg (881.8 lb)) to be exceeded and may cause damage to the engine support bridge and vehicle body.

30. SUPPORT AUTOMATIC TRANSAXLE ASSEMBLY

(a) Support the automatic transaxle assembly with a jack. Insert a wooden block between the jack and the automatic transaxle assembly to prevent damage.

*a

Wooden Block

31. DISCONNECT NO. 2 OUTLET OIL COOLER HOSE

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): OIL COOLER: REMOVAL+

32. DISCONNECT NO. 1 TRANSMISSION OIL COOLER HOSE

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): OIL COOLER: REMOVAL+

33. REMOVE OIL COOLER UNION SUB-ASSEMBLY

(a) Remove the bolt to separate the oil cooler union sub-assembly from the automatic transaxle case sub-assembly.

(b) Remove the oil cooler union bolt, 2 gaskets and oil cooler union sub-assembly from the automatic transaxle case sub-assembly.

34. REMOVE TRANSMISSION CASE SIDE COVER

(a) Disconnect the transmission wire connector.

HINT:

Disengage the claw, pull down the lever, and then disconnect the transmission wire connector.

(b) Loosen the bolt from the engine mounting insulator.

NOTICE:

Do not fully remove the bolt.

(c) Loosen the nut from the engine mounting insulator LH.

NOTICE:

Do not fully remove the nut.

(d) Operate the engine support bridge and the jack to raise up the engine and automatic transaxle assembly from 25 to 30 mm (0.984 to 1.181 in.).

NOTICE:

  • Do not raise the engine and automatic transaxle more than 30 mm (1.181 in.).
  • When raising the jack, be careful to prevent contact between the transmission wire and the vehicle body
  • Do not allow the engine assembly and automatic transaxle assembly to interfere with the body.
  • Make sure that the wire harness and hoses are not being pulled.

*a

25 to 30 mm (0.984 to 1.181 in.)

(e) Remove the 10 bolts and transmission case side cover from the automatic transaxle case sub-assembly.

35. REMOVE TRANSMISSION WIRE

(a) Disengage the clamp, and disconnect the 9 shift solenoid valve connectors.

HINT:

  • Using a screwdriver, disconnect the shift solenoid valve connector A using the procedure shown in the illustration.
  • Using a screwdriver, disconnect the shift solenoid valve connector B using the procedure shown in the illustration.

*a

Connector A

*b

Connector B

(b) Remove the bolt and temperature sensor clamp and disconnect the temperature sensor from the transmission valve body assembly.

(c) Disconnect the transmission revolution sensor (NT) connector and transmission revolution sensor (NC) connector.

(d) Remove the bolt and transmission wire from the automatic transmission case sub-assembly.