Lexus IS250 IS220d GSE20 ALE20 - A960E AUTOMATIC TRANSMISSION

AUTOMATIC TRANSMISSION ASSEMBLY - INSTALLATION

1. INSTALL TORQUE CONVERTER CLUTCH ASSEMBLY
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Using calipers and a straight edge, measure dimension A between the engine and the end surface of the drive plate (#1).

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Aligning the matchmarks on the transmission case and torque converter, engage the splines of the input shaft and turbine runner.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Engage the splines of the stator shaft and stator while turning the torque converter clutch.

  • HINT:
  • Turn the torque converter clutch approximately 180°.
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Turn the torque converter clutch and align the matchmarks on the torque converter clutch and transmission case to engage the key of the oil pump drive gear into the slot on the torque converter clutch.

  • NOTICE:
  • Do not push on the torque converter when aligning the matchmarks.
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Using calipers and a straight edge, measure dimension B shown in the illustration and check that B is greater than A measured in step (#1).

  • Standard:
  • A + 1 mm (0.04 in.) or more
2. INSTALL TRANSMISSION OIL COOLER

Coat 2 new O-rings with ATF and install them to the transmission oil cooler.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the transmission oil cooler to the automatic transmission assembly with the 3 bolts.

  • Torque:
  • 21 N*m{ 214 kgf*cm, 15 ft.*lbf}
3. INSTALL TRANSMISSION CONTROL SHAFT LEVER RH
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the transmission control shaft to the neutral start switch assembly with the nut.

  • Torque:
  • 16 N*m{ 163 kgf*cm, 12 ft.*lbf}
4. INSTALL REAR NO. 1 ENGINE MOUNTING INSULATOR
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the rear No. 1 engine mounting insulator to the automatic transmission assembly with the 4 bolts.

  • Torque:
  • 12 N*m{ 120 kgf*cm, 9 ft.*lbf}
5. INSTALL AUTOMATIC TRANSMISSION ASSEMBLY
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the automatic transmission assembly to the engine with the 9 bolts.

  • Torque:
  • Bolts A and B:
  • 71 N*m{ 724 kgf*cm, 52 ft.*lbf}
  • Bolt C:
  • 37 N*m{ 377 kgf*cm, 27 ft.*lbf}
  • HINT:
Make sure that the mark is as shown in the illustration.
Do not use excess force to pry on the transmission assembly.
6. INSTALL WATER BY-PASS HOSE
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Tilt down the automatic transmission assembly.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the 2 water by-pass hoses to the transmission assembly.

Install the water by-pass hose clamp with the bolt.

  • Torque:
  • 20 N*m{ 204 kgf*cm, 15 ft.*lbf}
7. INSTALL WIRE HARNESS
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the wire harness clamps to the automatic transmission assembly with the 2 bolts.

  • Torque:
  • 10 N*m{ 102 kgf*cm, 7 ft.*lbf}
8. INSTALL CONNECTOR
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Connect the park/neutral position switch connector, transmission wire connector, and 2 transmission revolution sensor connectors.

  • HINT:
  • Push up the lever until the claw of the transmission wire connector makes a connection sound.
9. INSTALL ENGINE REAR MOUNTING MEMBER
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Tilt up the automatic transmission assembly.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the engine rear mounting member to the automatic transmission assembly with the 4 nuts.

  • Torque:
  • 13 N*m{ 133 kgf*cm, 10 ft.*lbf}
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the engine rear mounting member to the body with the 4 bolts.

  • Torque:
  • 26 N*m{ 260 kgf*cm, 19 ft.*lbf}
10. INSTALL FLOOR SHIFT GEAR SHIFTING ROD SUB-ASSEMBLY
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Temporarily tighten the floor shift gear shifting rod sub-assembly with the nut.

11. INSTALL NO. 1 EXHAUST PIPE SUPPORT BRACKET SUB-ASSEMBLY
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the No. 1 exhaust pipe support bracket sub-assembly to the automatic transmission assembly with the 2 bolts.

  • Torque:
  • 43 N*m{ 438 kgf*cm, 32 ft.*lbf}
12. INSTALL DRIVE PLATE & TORQUE CONVERTER CLUTCH SETTING BOLT
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the 6 torque converter clutch setting bolts.

  • Torque:
  • 41 N*m{ 418 kgf*cm, 30 ft.*lbf}
  • HINT:
  • First install the black colored bolt and then the remaining 5 bolts.
13. INSTALL STARTER ASSEMBLY
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the starter with the 2 bolts.

  • Torque:
  • 58 N*m{ 591 kgf*cm, 43 ft.*lbf}

Connect the wire harness to terminal 30 and install the nut, and then attach the terminal cap.

  • Torque:
  • 9.8 N*m{ 100 kgf*cm, 87 in.*lbf}

Connect the terminal 50 connector to the starter assembly.

14. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY LH
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install a new gasket and the exhaust manifold with 6 new nuts.

  • Torque:
  • 21 N*m{ 214 kgf*cm, 15 ft.*lbf}
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Connect the air fuel ratio sensor (for sensor 1) connector.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the engine wire bracket with the bolt (A).

  • Torque:
  • 10 N*m{ 102 kgf*cm, 7 ft.*lbf}

Install the ground cable with the 2 bolts (B, C).

  • Torque:
  • Bolt (B):
  • 10 N*m{ 102 kgf*cm, 7 ft.*lbf}
  • Bolt (C):
  • 13 N*m{ 133 kgf*cm, 10 ft.*lbf}
15. INSTALL PROPELLER SHAFT WITH CENTER BEARING ASSEMBLY
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Remove the SST from the transmission.

  • SST
  • 09325-40010

Insert the yoke of the intermediate shaft into the transmission.

  • HINT:
  • Be careful not to damage the oil seal.
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the 2 center support bearing washers and center support bearing. (for automatic transmission)

Install the 2 center support bearing washers, center support bearing and 2 center support bearing dampers. (for manual transmission)

Temporarily tighten the 2 bolts.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Align the matchmarks on the propeller shaft flange and differential companion flange, and connect the shaft with the 4 bolts, washers and nuts.

  • Torque:
  • 74 N*m{ 750 kgf*cm, 54 ft.*lbf}
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Adjust the dimension between the edge surface of the center support bearing and the edge surface of the cushion to 11.5 to 13.5 mm (0.4528 to 0.5315 in.) as shown in illustration.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Check that the center line of the bracket is perpendicular to the shaft axial direction.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Tighten the 2 bolts.

  • Torque:
  • 49 N*m{ 500 kgf*cm, 36 ft.*lbf}
16. INSTALL OUTSIDE AIR GUIDE PLATE RH
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the air guide plate outside RH with the 4 nuts.

  • Torque:
  • 5.4 N*m{ 55 kgf*cm, 48 in.*lbf}
17. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
18. ADJUST SHIFT LEVER POSITION
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Remove the nut and disconnect the shifting rod.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Turn the control shaft lever of the park/neutral position switch counterclockwise until it stops, and turn it clockwise 2 notches to set it to the N position.

Move the shift lever to the N position and tighten the nut while lightly pushing the lever toward the R position.

  • NOTICE:
  • Do not push the shift lever too hard.

After adjustment, check that the shift lever moves smoothly and the shift lever and gear operate correctly.

19. INSPECT SHIFT LEVER POSITION

When shifting from the P to R position with the engine switch on (IG) and the brake pedal depressed, make sure that the shift lever moves smoothly and moves correctly into the position.

Start the engine and make sure that the vehicle moves forward when shifting from the N to D position and moves rearward when shifting to the R position.


If operation cannot be done as specified, inspect the park/neutral position switch assembly and check the shift lever assembly installation condition.

20. INSTALL FRONT FLOOR NO. 1 HEAT INSULATOR
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the No. 1 heat insulator with the 4 nuts.

  • Torque:
  • 5.4 N*m{ 55 kgf*cm, 48 in.*lbf}
21. INSTALL FRONT EXHAUST PIPE ASSEMBLY
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Using a vernier caliper, measure the free length of the compression springs.

  • Minimum length:
  • 38.5 mm (1.516 in.)

If the free length is less than the minimum, replace the compression spring.


Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install a new gasket to the rear end of the front exhaust pipe.

  • NOTICE:
Be careful with the installation direction of the gasket.
Do not reuse the gasket.
To ensure a proper seal, do not use the tail exhaust pipe to force the gasket onto the front exhaust pipe.
  • HINT:
  • Using a plastic hammer, uniformly strike the gasket so that the gasket and front exhaust pipe are properly fit.

Install 3 new gaskets and front exhaust pipe assembly.

  • CAUTION:
  • Do not reuse the gaskets.
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the 2 bolts and 2 compression springs.

  • Torque:
  • 43 N*m{ 438 kgf*cm, 32 ft.*lbf}
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install 4 new nuts and 4 bolts.

  • Torque:
  • 62 N*m{ 632 kgf*cm, 46 ft.*lbf}
  • NOTICE:
  • Do not reuse the nuts.
22. INSTALL OXYGEN SENSOR
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Before installing the heated oxygen sensors, twist the sensor wires counterclockwise 4 turns.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Using the SST, install the heated oxygen sensors to the front exhaust pipe.

  • SST
  • 09224-00010
  • Torque:
  • 44 N*m{ 449 kgf*cm, 33 ft.*lbf}

After installing the sensors, check that the sensor wires are not twisted.


If the sensor wires are twisted, reinstall them.

Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the grommets of the heated oxygen sensors.

23. INSTALL FRONT CENTER FLOOR BRACE
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the front center floor brace with the 4 bolts.

  • Torque:
  • 7.4 N*m{ 75 kgf*cm, 65 in.*lbf}
24. REMOVE REAR NO. 1 FLOOR PANEL BRACE
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the rear No. 1 floor panel brace with the 4 bolts.

  • Torque:
  • 19 N*m{ 194 kgf*cm, 14 ft.*lbf}
25. ADD COOLANT

26. ADD AUTOMATIC TRANSMISSION FLUID

27. ADJUST COOLANT

28. CHECK FOR ENGINE COOLANT LEAKS
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20
  • NOTICE:
  • Before performing each inspection, turn the A/C switch OFF.
  • CAUTION:
  • Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

Fill the radiator with coolant and attach a radiator cap tester.

Warm up the engine.

Using a radiator cap tester, increase the pressure inside the radiator to 118 kPa (1.2 kgf*cm2, 17 psi), and check that the pressure does not drop.


If the pressure drops, check the hoses, radiator and water pump for leaks. If no external leaks are found, check the heater core, cylinder block and cylinder head.

29. CHECK FOR EXHAUST GAS LEAKS

If exhaust gas is leaking, tighten the related parts to stop the leak. Replace damaged parts as necessary.


30. INSTALL ENGINE UNDER COVER AIR GUIDE BRACKET
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the engine under cover air guide bracket with the 2 bolts.

  • Torque:
  • 26 N*m{ 265 kgf*cm, 19 ft.*lbf}
31. INSTALL NO. 2 ENGINE UNDER COVER
32. INSTALL ENGINE UNDER COVER
33. INSTALL ENGINE ROOM SIDE COVER LH
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the side cover with the 5 clips.

34. INSTALL COOL AIR INTAKE DUCT SEAL
Automatic Transmission Assembly - Installation. A960E AUTOMATIC TRANSMISSION. Lexus IS250 IS220d GSE20 ALE20

Install the intake duct seal with the 11 clips.

35. RESET MEMORY

36. PERFORM INITIALIZATION

Some systems need initialization after reconnecting the cable to the negative battery terminal


.