Lexus LS400 (2000 year). Manual — part 2

AT03A–01

D00996

Oil Cooler Pipe

Propeller Shaft

Wire Harness and Connector

Level Gauge

Filler Pipe

O–Ring

Torque Converter Clutch

Flywheel Housing
Under Cover

Plug for Line Pressure

Test

Front Center Floor Crossmember Brace

Adjusting Washer

Rear Center Floor
Crossmember Brace

Heat Insulator

Plug for Accumulator
Back Pressure Test

Clamp

Gasket

x6

Shift Control Rod

Front Exhaust Pipe

Oxygen Sensor

Front Suspension Protector

Non–reusable part

: Specified torque

N·m (kgf·cm, ft·lbf)

Engine Under
Cover

RH Front TWC

Pipe Support Bracket

Heat Insulator

Gasket

Oxygen Sensor

Gasket

Heat Insulator

37 (380, 27)

48 (490, 35)

44 (450, 32)

62 (630, 46)

13 (130, 9)

79 (805, 58)

79 (805, 58)

13 (130, 9)

43 (440, 32)

44 (450, 32)

62 (630, 46)

LH Front TWC

43 (440, 32)

37 (380, 27)

72 (730, 53)

x6

5.4 (55, 48 in.·lbf)

13 (130, 9)

37 (375, 27)

4.9 (50, 43 in.·lbf)

18 (185, 13)

Engine Rear Mounting
Member Bracket Plate

5.4 (55, 48 in.·lbf)

43 (440, 32)

See page

EM–120

26 (270, 20)

Transmission

44 (450, 32)

AT–16

–

AUTOMATIC TRANSMISSION

AUTOMATIC TRANSMISSION UNIT

1523

AUTOMATIC TRANSMISSION UNIT

COMPONENTS

AT03B–01

D00997

D00998

D00999

–

AUTOMATIC TRANSMISSION

AUTOMATIC TRANSMISSION UNIT

AT–17

1524

REMOVAL

1.

REMOVE LEVEL GAUGE

2.

RAISE VEHICLE

NOTICE:
Make sure that the vehicle is securely supported.
3.

REMOVE ENGINE UNDER COVER

4.

REMOVE FRONT SUSPENSION PROTECTOR

5.

REMOVE FRONT EXHAUST PIPE

(a)

Disconnect the 2 heated oxygen sensors.
Torque: 44 N·m (450 kgf·cm, 32 ft·lbf)

HINT:
At the time of installation, please refer to the following items.

Before installing the heated oxygen sensor, twist the sen-
sor wire counterclockwise 3 and 1/2 turns.

After installing the heated oxygen sensor wire is not
twisted. If it is twisted, remove the heated oxygen sensor
and reinstall it.

(b)

Remove the 4 bolts, nuts and 2 gaskets from the LH and
RH front TWC.
Torque: 43 N·m (440 kgf·cm, 32 ft·lbf)

HINT:
At the time of installation, please refer to the following item.
Replace the used nuts and gaskets with new ones.
(c)

Remove the 2 bolts and support bracket.
Torque: 43 N·m (440 kgf·cm, 32 ft·lbf)

(d)

Remove the pipe clamp set bolt and gasket.
(See page

EM–120

)

HINT:
At the time of installation, please refer to the following item.
Replace the used gasket with a new one.
(e)

Remove the front exhaust pipe.

6.

REMOVE LH AND RH FRONT TWC

Remove the 6 nuts, 2 gaskets, LH and RH front TWC.

Torque: 62 N·m (630 kgf·cm, 46 ft·lbf)

HINT:
At the time of installation, please refer to the following item.
Replace the used nuts and gaskets with new ones.

D01000

D01001

D01002

AT–18

–

AUTOMATIC TRANSMISSION

AUTOMATIC TRANSMISSION UNIT

1525

7.

REMOVE HEAT INSULATOR AND ENGINE REAR
MOUNTING MEMBER BRACKET PLATE

(a)

Remove the 4 nuts, 6 bolts and heat insulators.

(b)

Remove the 3 bolts and bracket plate.
Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)

8.

REMOVE BOLT AND FILLER PIPE

HINT:
At the time of installation, please refer to the following item.
Replace the used O–ring with a new one.
9.

REMOVE HEAT INSULATOR

Remove the 6 bolts and heat insulator.

Torque: 5.4 N·m (55 kgf·cm, 48 in.·lbf)

10.

REMOVE CROSSMEMBER BRACE

(a)

Remove the 4 bolts and front center floor crossmember
brace.
Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)

(b)

Remove the 4 nuts and rear center floor crossmember
brace.
Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)

11.

REMOVE PROPELLER SHAFT
(See page

PR–3

)

12.

REMOVE SHIFT CONTROL ROD

Remove the nut and disconnect the rod.

Torque: 13 N·m (130 kgf·cm, 9 ft·lbf)

13.

DISCONNECT OIL COOLER PIPE

(a)

Loosen the 2 union nuts from the transmission.
Torque: 44 N·m (450 kgf·cm, 32 ft·lbf)

NOTICE:
Be careful no to damage the oil cooler pipe.

D01003

D01004

D01005

Q03721

D01006

–

AUTOMATIC TRANSMISSION

AUTOMATIC TRANSMISSION UNIT

AT–19

1526

(b)

Disconnect the 3 set bolts of the clamp.
Torque: 4.9 N·m (50 kgf·cm, 43 in.·lbf)

(c)

Disconnect the 2 oil cooler pipes from the transmission.

14.

REMOVE TORQUE CONVERTER CLUTCH MOUNT-
ING BOLT

(a)

Remove the 2 bolts and flywheel housing under cover.
Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)

(b)

Turn the crankshaft to gain access to each bolt.

(c)

Hold the crankshaft pulley nut with a wrench and remove
the 6 bolts.
Torque: 48 N·m (490 kgf·cm, 35 ft·lbf)

HINT:
At the time of installation, please refer to the following item.
First install black colored bolt and then the 5 other bolts.

15.

SUPPORT TRANSMISSION WITH JACK

16.

REMOVE ENGINE REAR MOUNTING 4 SET BOLTS
Torque: 26 N·m (270 kgf·cm, 20 ft·lbf)