2000 LEXUS GS400 wheel torque

AT06A±01
D01049
Oil Cooler Pipe
Connector and Wire Harness
Level Gauge
Torque Converter Clutch
Flywheel Housing
Under CoverPlug for Line
Pressure Test
Front and Center Exhaust PipePropeller Shaft Assembly
Heated Oxygen Sensor
Pipe Support BracketRH Front TWC
Engine Under CoverHeat Insulator
Ground CableHeat Insulator
GasketO±Ring x6Adjusting Washer
Filler Pipe
44 (450, 33)
79 (805, 58)
37 (375, 27)
79 (805, 58)
13 (130, 9)
37 (380, 27)
18 (185, 13)
44 (450, 33)
44 (450, 33)
62 (630, 46)
62 (630, 46)
72 (730, 53)
37 (380, 27)
48 (490, 35)
44 (450, 33)44 (450, 33)
5.4 (55, 48 in.´lbf)
5.4 (55, 48 in.´lbf)
Heat Insulator
26 (270, 20)

Gasket
LH Front TWC
44 (450, 33)

Gasket

Gasket


















N´m (kgf´cm, ft´lbf) : Specified torque
Non±reusable part
Heat Insulator
5.4 (55, 48 in.´lbf)
44 (450, 33)
44 (450, 33)

O±Ring
Heated Oxygen
SensorFront Floor
Center Brace
7.4 (75, 65 in.´lbf)
x6
± AUTOMATIC TRANSMISSIONAUTOMATIC TRANSMISSION UNIT (1UZ±FE)
AT±33
1981 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
AUTOMATIC TRANSMISSION UNIT (1UZ±FE)
COMPONENTS

D01052
D01044
D01002
D01053
D01004
± AUTOMATIC TRANSMISSIONAUTOMATIC TRANSMISSION UNIT (1UZ±FE)
AT±35
1983 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
6. REMOVE HEAT INSULATOR
Remove the 2 nuts, 3 bolts and 2 heat insulators.
7. 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.
8. REMOVE PROPELLER SHAFT
(See page PR±4)
9. DISCONNECT SHIFT CONTROL ROD
Remove the nut and disconnect the rod.
Torque: 13 N´m (130 kgf´cm, 9 ft´lbf)
10. DISCONNECT OIL COOLER PIPE
(a) Loosen the 2 union nuts from the transmission.
Torque: 44 N´m (450 kgf´cm, 33 ft´lbf)
NOTICE:
Be careful not to damage the oil cooler pipe.
(b) Disconnect the 3 set bolts of the clamp.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
(c) Disconnect the 2 oil cooler pipes from the transmission.
11. 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)

BE0FZ±08
I04195
I04196
6
I04197
BE±250
± BODY ELECTRICALHORN SYSTEM
2551 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INSPECTION
1. INSPECT HORN SWITCH
(a) Disconnect the negative (±) terminal from the battery.
(b) Remove the left and right covers from the steering wheel.
(c) Using a torx socket wrench, loosen the 2 bolts.
(d) Pull up the horn pad and place it on the steering column,
as shown.
HINT:
Do not disconnect the connector from the horn pad.
(e) Disconnect the connector from the slip ring.
(f) Check that no continuity exists between terminal 6 of the
connector and body ground.
(g) Check that continuity exists between terminal 6 of the
connector and body ground when the horn contact plate
is pressed against the steering spoke assembly.
If continuity is not as specified, repair or replace the steering
wheel or wire harness as necessary.
(h) Install the horn pad in place and using a torx socket
wrench, torque the 2 bolts.
Torque:
7.1 N´m (72 kgf´cm, 62 in.´lbf)
(i) Install the left and right covers.
(j) Connect the negative (±) terminal to the battery.
2. INSPECT HORN OPERATION
Connect the positive (+) lead from the battery to the terminal
and negative (±) lead to the horn body and check that the horn
blows.
If operation is not as specified, replace the horn.
3. INSPECT HORN SWITCH CIRCUIT
(See page DI±806)

W00744
± BRAKEFRONT BRAKE PAD
BR±17
2125 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
10. INSTALL CALIPER
(a) Draw out a small amount of brake fluid from the reservoir.
(b) Press in the pistons with a hammer handle or similar im-
plement.
HINT:
If the pistons are difficult to push in, loosen the bleeder plug and
push in the pistons while letting some brake fluid escape.
(c) Install the caliper.
(d) Hold the sliding pin and torque the installation bolt.
Torque: 34 N´m (350 kgf´cm, 25 ft´lbf)
11. INSTALL FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
12. DEPRESS BRAKE PEDAL SEVERAL TIMES
13. CHECK THAT FLUID LEVEL IS AT MAX LINE

F01635
Direction of disc rotation for
forward movement
F01636
F07232
AB
Claw
BR±26
± BRAKEREAR BRAKE PAD
2134 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(b) Install the 2 anti±squeal shims on each pad.
HINT:
Make sure the arrows on the inner anti±squeal shims facing to
the direction of disc rotation as shown in the illustration.
(c) Draw out a small amount of brake fluid from the reservoir.
(d) Press in the pistons with a monkey wrench handle or
equivalent.
HINT:

Tape the monkey wrench handle before use.

If the piston is difficult to push in, loosen the bleeder plug
and push in the piston while letting some brake fluid es-
cape.
(e) Install the 2 pads.
7. I N S TA L L PA D G U I D E P I N A N D A N T I ± S Q U E A L
SPRING
(a) Install the pad guide pin and clip.
(b) Install the anti±squeal spring.
HINT:

Ensure that the claw of the anti±squeal spring is raised up
on the caliper securely.

Ensure that there is no gap between the pad guide pin
and anti±squeal spring.

Ensure that ºAº and ºBº portions of anti±squeal spring are
attached to the pad.
8. INSTALL FRONT WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
9. DEPRESS BRAKE PEDAL SEVERAL TIMES
10. CHECK THAT FLUID LEVEL IS AT MAX LINE

BR0JS±06
F01639
BR±28
± BRAKEREAR BRAKE CALIPER
2136 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
1. REMOVE REAR WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. DISCONNECT FLEXIBLE HOSE
Remove the union bolt and gasket from the caliper, then discon-
nect the flexible hose from the caliper. Use a container to catch
brake fluid as it drains out.
Torque: 30 N´m (310 kgf´cm, 22 ft´lbf)
HINT:
At the time of installation, please refer to the following item.
Install the flexible hose lock securely in the lock hole in the cali-
per.
3. REMOVE CALIPER
(a) Remove the 2 installation bolts.
Torque: 104 N´m (1,065 kgf´cm, 77 ft´lbf)
(b) Remove the caliper.
4. REMOVE BRAKE PADS (See page BR±25)
(a) Remove the anti±squeal spring.
(b) Remove the clip and pad guide pin.
(c) Remove the 2 pads with the 4 anti±squeal shims.

BR0JY±03
F01647
F01648
F01649
F01650
F01651
BR±34
± BRAKEPARKING BRAKE
2142 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
DISASSEMBLY
1. REMOVE REAR WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
2. REMOVE REAR DISC BRAKE ASSEMBLY
(a) Remove the 2 mounting bolts and remove the disc brake
assembly.
Torque: 104 N´m (1,065 kgf´cm, 77 ft´lbf)
(b) Suspend the disc brake securely and so the hose is not
stretched.
3. REMOVE DISC
(a) Release the parking brake pedal.
(b) Place matchmarks on the disc and rear axle hub.
(c) Remove the disc.
HINT:

If the disc cannot be removed easily, turn the shoe adjust-
er until the wheel turns freely.

If there are no matchmarks, temporarily install the disc,
then measure the disc runout and install the disc in posi-
tion (See page BR±30).
4. REMOVE SHOE RETURN SPRINGS
Using needle±nose pliers, remove the 2 shoe return springs.
5. REMOVE SHOE STRUT WITH SPRING
HINT:
At the time of reassembly, install the strut with the spring facing
forward.
6. REMOVE FRONT SHOE AND ADJUSTER
(a) Slide out the front shoe and remove the shoe adjuster.
(b) Disconnect the tension spring and remove the front shoe.
(c) Remove the 2 cups, shoe hold±down spring and pin.
7. REMOVE REAR SHOE AND TENSION SPRING
(a) Slide out the rear shoe.
(b) Remove the tension spring from the rear shoe.
(c) Disconnect the parking brake cable from the parking
brake shoe lever.
(d) Remove the 2 cups, shoe hold±down spring and pin.

F02851
BR±8
± BRAKEBRAKE FLUID
2116 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(l) Observe the procedure in step (k) and bleed left rear
brake line.
(m) Disconnect the actuator checker (SST) and sub±wire har-
ness (SST) from the actuator.
SST 09990±00150, 09990±00480
(n) Connect the 2 connectors to the hydraulic brake booster.
(o) Clear the DTC (See page DI±389).
4. BLEED BRAKE LINE
(a) Connect the vinyl tube to the brake caliper.
(b) Depress the brake pedal several times, then loosen the
bleeder plug with the pedal held down.
(c) At the point when fluid stops coming out, tighten the
bleeder plug, then release the brake pedal.
(d) Repeat (b) and (c) until all the air in the fluid has been bled
out.
(e) Repeat the above procedure to bleed the brake line for
each wheel.
Torque: 11 N´m (110 kgf´cm, 8 ft´lbf)
5. CHECK FLUID LEVEL IN RESERVOIR
(a) With the ignition switch OFF, depress the brake pedal
more than 40 times.
HINT:
When a pressure in power supply system is released, reaction
force becomes heavy and stroke becomes shorter.
(b) Remove the reservoir cap. Add brake fluid up to the
ºMAXº line.
Fluid: SAE J1703 or FMVSS NO. 116 DOT3