Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM10000000105HN
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 -           ]
Title: UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE ASSEMBLY: INSTALLATION; 2017 - 2020 MY Sienna [08/2016 -        ]

INSTALLATION

CAUTION / NOTICE / HINT

CAUTION:

The engine assembly with continuously variable transaxle assembly is very heavy. Be sure to follow the procedure described in the repair manual, or the engine lifter may suddenly drop.

PROCEDURE

1. INSTALL BREATHER PLUG HOSE

(a) Install the No. 1 breather plug (ATM) to the breather plug hose.

(b) Install the breather plug hose to the breather plug.

2. INSTALL WIRE HARNESS CLAMP BRACKET

(a) Install the wire harness clamp bracket to the automatic transaxle case sub-assembly with the bolt.

Torque:

19.1 N·m {195 kgf·cm, 14 ft·lbf}

3. INSTALL NO. 1 TRANSMISSION CONTROL CABLE BRACKET

(a) Install the No. 1 transmission control cable bracket to the automatic transaxle case sub-assembly with the 2 bolts.

Torque:

12 N·m {122 kgf·cm, 9 ft·lbf}

4. INSTALL NO. 3 ENGINE MOUNTING BRACKET

(a) Install the No. 3 engine mounting bracket to the automatic transaxle case sub-assembly with the 3 bolts.

Torque:

64 N·m {653 kgf·cm, 47 ft·lbf}

5. INSTALL OIL COOLER TUBE ASSEMBLY

(a) Install the oil cooler tube assembly to the automatic transmission and No. 3 engine mounting bracket with the 2 bolts.

Torque:

13.5 N·m {138 kgf·cm, 10 ft·lbf}

(b) Connect the No. 1 inlet oil cooler hose to the connector tube and slide the clip to secure them.

NOTICE:

  • Make sure to slide the No. 1 inlet oil cooler hose until each contacts the hose stopper of the connector tube.
  • Make sure that each paint mark is within the location shown in the illustration.

*a

2 to 7 mm (0.0787 to 0.276 in.)

*b

Paint Mark

*c

45°

Paint Mark Location

6. CONNECT NO. 1 OUTLET OIL COOLER HOSE

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

7. CONNECT NO. 2 INLET OIL COOLER HOSE

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

8. CONNECT NO. 1 TRANSMISSION OIL COOLER HOSE

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

9. CONNECT NO. 2 OUTLET OIL COOLER HOSE

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

10. INSTALL TRANSFER ASSEMBLY

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; MF1A (TRANSFER / 4WD / AWD): TRANSFER ASSEMBLY(When Not Using the Engine Support Bridge): INSTALLATION+

11. INSTALL TORQUE CONVERTER ASSEMBLY

(a) Set the key at the top of the front oil pump drive gear and put a matchmark on the transaxle housing.

*a

Matchmark

*b

Key

(b) Apply MP grease to Place a matchmark on the torque converter assembly so that the position of its groove is clearly indicated.

*a

Groove

*b

Matchmark

MP Grease

(c) Align the matchmark on the housing with the one on the torque converter assembly and engage the splines of the input shaft with the turbine runner splines.

NOTICE:

  • Install the torque converter assembly to the input shaft while keeping it horizontal.
  • Do not damage the front oil pump oil seal.

*1

Front Oil Pump Oil Seal

*a

Matchmark

(d) Rotate the torque converter assembly approximately 180° and engage the splines of the stator shaft with the stator assembly.

NOTICE:

  • Do not push the torque converter assembly excessively when rotating it.
  • Install the torque converter assembly to the input shaft while keeping it horizontal.
  • Do not damage the front oil pump oil seal.

*1

Front Oil Pump Oil Seal

*a

Matchmark

(e) Rotate the torque converter assembly approximately 180° again, align the matchmark on the torque converter assembly with the one on the housing and insert the groove of the torque converter assembly into the key of the oil pump drive gear.

NOTICE:

  • Do not push the torque converter assembly excessively when rotating it.
  • Install the torque converter assembly to the input shaft while keeping it horizontal.
  • Do not damage the front oil pump oil seal.

*1

Front Oil Pump Oil Seal

*a

Matchmark

(f) Clean the drive plate and torque converter assembly setting bolt holes.

(g) Using a vernier caliper and straightedge, measure the dimension (A) shown in the illustration and check the dimension (A).

Standard:

14 mm (0.5512 in.) or more

NOTICE:

  • Make sure to deduct the thickness of the straightedge.
  • If the automatic transaxle assembly is installed to the engine assembly with the torque converter assembly not sufficiently inserted, the torque converter assembly may be damaged.
  • Do not include the thickness of the set block.

12. INSTALL AUTOMATIC TRANSAXLE ASSEMBLY

(a) Apply clutch spline grease to the surface of the crankshaft that contacts the torque converter assembly centerpiece.

Clutch Spline Grease:

Toyota Genuine Clutch Spline Grease or equivalent

Maximum Grease Amount:

Approximately 1 g (0.0353 oz.)

*a

Crankshaft

*b

Torque Converter Assembly Centerpiece

Clutch Spline Grease

(b) Confirm that the 2 knock pins are installed on the engine assembly and are not damaged.

*1

Knock Pin

(c) While keeping the engine assembly and automatic transaxle assembly horizontal, align the knock pins with the holes in the automatic transaxle assembly and install the automatic transaxle assembly with the 11 bolts shown in the illustration.

Torque:

Bolt (A) :

64 N·m {653 kgf·cm, 47 ft·lbf}

Bolt (B) :

46 N·m {469 kgf·cm, 34 ft·lbf}

Bolt (C) :

43 N·m {438 kgf·cm, 32 ft·lbf}

Bolt Length:

Bolt

Length mm (in.)

A

55 mm (2.17 in.)

B

41 mm (1.61 in.)

C

33 mm (1.30 in.)

NOTICE:

  • Confirm that the knock pins are installed to the automatic transaxle assembly contact surface of the cylinder block sub-assembly before installing the automatic transaxle assembly.
  • Do not forcibly pry on the automatic transaxle assembly.
  • Check that the torque converter assembly rotates.

13. INSTALL TRANSFER STIFFENER PLATE RH

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; MF1A (TRANSFER / 4WD / AWD): TRANSFER ASSEMBLY(When Not Using the Engine Support Bridge): INSTALLATION+

14. INSTALL TRANSVERSE ENGINE ENGINE MOUNTING BRACKET

(a) Install the transverse engine engine mounting bracket to the transaxle housing with the 4 bolts.

Torque:

64 N·m {653 kgf·cm, 47 ft·lbf}

15. CONNECT ENGINE WIRE

(a) Engage the clamp to connect the engine wire to the automatic transaxle case sub-assembly.

(b) Connect the engine wire to the automatic transaxle case sub-assembly with the 2 bolts and nut.

Torque:

Bolt (A) :

19.1 N·m {195 kgf·cm, 14 ft·lbf}

Bolt (B) :

8.4 N·m {86 kgf·cm, 74 in·lbf}

Nut :

8.4 N·m {86 kgf·cm, 74 in·lbf}

(c) Connect the park/neutral position switch connector.

(d) Connect the transmission wire connector.

16. INSTALL BREATHER PLUG HOSE

(a) Engage the 2 clamps to install the breather plug hose to the hose clamp.

17. INSTALL ENGINE ASSEMBLY WITH TRANSAXLE

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

18. INSTALL STARTER ASSEMBLY

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; 2GR-FKS STARTING: STARTER: INSTALLATION+

19. INSTALL DRIVE PLATE AND TORQUE CONVERTER SETTING BOLT

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

20. INSTALL FLYWHEEL HOUSING UNDER COVER

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

21. CHECK AUTOMATIC TRANSAXLE SYSTEM

NOTICE:

If automatic transmission parts have been replaced, refer to the Parts Replacement Compensation Table to determine if any additional operations are necessary.

Click here 2017 - 2020 MY Sienna [08/2016 -        ]; UA80F (AUTOMATIC TRANSMISSION / TRANSAXLE): AUTOMATIC TRANSAXLE SYSTEM: PRECAUTION