suspension LEXUS GS400 2000 Service User Guide

± INTRODUCTIONTERMS
IN±39
39 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) OEM
Original Equipment Manufacturing
OHCOverhead Camshaft
OHVOverhead Valve
OPTOption
O/SOversize
P & BVProportioning And Bypass Valve
PCSPower Control System
PCVPositive Crankcase Ventilation
PKBParking Brake
PPSProgressive Power Steering
PSPower Steering
PTOPower Take±Off
R & PRack And Pinion
R/BRelay Block
RBSRecirculating Ball Type Steering
R/FReinforcement
RFSRigid Front Suspension
RHRight±Hand
RHDRight±Hand Drive
RLYRelay
ROMRead Only Memory
RrRear
RRRear±Engine Rear±Wheel Drive
RRSRigid Rear Suspension
RWDRear±Wheel Drive
SDNSedan
SENSensor
SICSStarting Injection Control System
SOCState Of Charge
SOHCSingle Overhead Camshaft
SPECSpecification
SPISingle Point Injection
SRSSupplemental Restraint System
SSMSpecial Service Materials
SSTSpecial Service Tools
STDStandard
STJCold±Start Fuel Injection
SWSwitch
SYSSystem
T/ATransaxle
TACHTachometer
TBIThrottle Body Electronic Fuel Injection
TCTurbocharger
TCCSTOYOTA Computer±Controlled System
TCVTiming Control Valve
TDCTop Dead Center

IN±40
± INTRODUCTIONTERMS
40 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) TEMP.
Temperature
TEMSTOYOTA Electronic Modulated Suspension
TISTotal Information System For Vehicle Development
T/MTransmission
TMCTOYOTA Motor Corporation
TMMKTOYOTA Motor Manufacturing Kentucky, Inc.
TRACTraction Control System
TURBOTurbocharge
U/DUnderdrive
U/SUndersize
VCVVacuum Control Valve
VENTVentilator
VINVehicle Identification Number
VPSVariable Power Steering
VSCVehicle Skid Control
VSVVacuum Switching Valve
VTVVacuum Transmitting Valve
w/With
WGNWagon
W/HWire Harness
w/oWithout
1stFirst
2ndSecond
2WDTwo Wheel Drive Vehicle (4x2)
4WDFour Wheel Drive Vehicle (4x4)

MA01S±01
± MAINTENANCECHASSIS
MA±7
50 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
CHASSIS
INSPECTION
1. INSPECT STEERING LINKAGE
(a) Check the steering wheel freeplay.
(See page SR±8)
(b) Check the steering linkage for looseness or damage.
Check that:

Tie rod ends do not have excessive play.

Dust seals and boots are not damaged.

Boot clamps are not loose.
2. INSPECT SRS AIRBAG
(DRIVER'S SIDE: See page RS±15)
(PASSENGER'S SIDE: See page RS±29)
3. INSPECT STEERING GEAR HOUSING OIL
Check the steering gear housing for oil leakage.
4. INSPECT LOWER BALL JOINTS AND DUST COVERS
(a) Jack up the front of the vehicle and support it with stands.
(b) Make sure the front wheels are in a straight±ahead posi-
tion, and depress the brake pedal.
(c) Jack up the lower suspension arm until there is about half
a load on the front coil spring.
(d) Inspect the dust cover for damage.
5. CHECK AUTOMATIC TRANSMISSION AND
DIFFERENTIAL
Visually check the automatic transmission and differential for oil
leakage.
If leakage is found, check for the cause and repair it.
6. REPLACE AUTOMATIC TRANSMISSION FLUID
(See page DI±318)
7. REPLACE DIFFERENTIAL OIL
(See page SA±61)

B01983
37 N´m
B01657
127 N´m127 N´m
MA01T±01
B01658
98 N´m
MA±8
± MAINTENANCEBODY
51 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
BODY
INSPECTION
1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY
Tighten these parts:

Front seat mounting bolts
Torque: 37 N´m (375 kgf´cm, 27 ft´lbf)

Front suspension member±to±body mounting nuts
Torque: 98 N´m (1,000 kgf´cm, 72 ft´lbf)

Rear suspension member±to±body mounting bolts
Torque: 127 N´m (1,300 kgf´cm, 94 ft´lbf)
2. BODY INSPECTION
(a) Check the body exterior for dents, scratches and rust.
(b) Check the underbody for rust and damage.
If necessary, replace or repair.
3. ROAD TEST
(a) Check the engine and chassis for abnormal noises.
(b) Check that the vehicle does not wander or pull to one
side.
(c) Check that the brakes work properly and do not drag.
(d) Do setting of the parking brake shoes and drum.
4. FINAL INSPECTION
(a) Check the operation of the body parts:

Hood
Auxiliary catch operates properly
Hood locks securely when closed

Front and rear doors
Door locks operate properly
Doors close properly

Luggage compartment door
Door lock operates properly

Seat adjusts easily and locks securely in any posi-
tion
Front seat back locks securely in any position
Folding±down rear seat backs lock securely

PP0T1±04
± PREPARATIONSUSPENSION AND AXLE
PP±67
11 9 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
SUSPENSION AND AXLE
SST (Special Service Tools)
09223±46011Crankshaft Front Oil Seal
ReplacerRear differential
09223±56010Crankshaft Rear Oil Seal
ReplacerRear differential
09229±55010Oil Cooler Relief Valve WrenchRear differential
09240±00020Wire Gauge SetRear drive shaft
(09242±00080)Wire Gauge
09255±10012Crankshaft Rear Bearing Remover
& ReplacerRear differential
09308±00010Oil Seal PullerFront axle
Rear differential
09309±36010Transmission Rear Bearing
ReplacerFront axle
Rear drive shaft
09316±12010Transfer Bearing ReplacerDifferential mounting cushion
09316±60011Transmission & Transfer Bearing
ReplacerFront axle
Rear differential
(09316±00011)Replacer Pipe
(09316±00041)Replacer ºCº

PP±68
± PREPARATIONSUSPENSION AND AXLE
120 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(09316±00071)Replacer ºFº
09325±40010Transmission Oil PlugRear differential
09330±00021Companion Flange Holding ToolRear differential
09502±12010Differential Bearing ReplacerRear drive shaft
Rear differential
09502±24010Bearing ReplacerRear differential
09520±00031Rear Axle Shaft PullerRear axle
09520±24010Differential Side Gear Shaft
PullerRear differential
09521±24010Drive Shaft Boot Clamping ToolRear drive shaft
09527±17011Rear Axle Shaft Bearing RemoverRear axle
09570±24010Differential Mounting Cushion
Remover & ReplacerDifferential mounting cushion
09608±04031Front Hub Inner Bearing Cone
ReplacerRear differential
09608±32010Steering Knuckle Oil Seal
ReplacerFront axle
Rear differential
09610±20012Pitman Arm PullerFront axle
Front suspension
Rear axle

± PREPARATIONSUSPENSION AND AXLE
PP±69
121 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
09628±10011Ball Joint PullerFront wheel hub bolt
Rear wheel hub bolt
09628±62011Ball Joint PullerFront suspension
Rear axle
Rear suspension
09710±30050Suspension Arm Bushing ReplacerRear differential
09726±12023Lower Suspension Arm Bushing
Remover & ReplacerRear drive shaft
(09726±01031)Spacer
09727±30021Coil Spring CompressorFront suspension
Rear suspension
09950±00020Bearing RemoverRear axle
Rear differential
09950±40011Puller B SetFront axle
Rear axle
Rear differential
(09951±04020)Hanger 200
(09952±04010)Slide Arm
(09953±04020)Center Bolt 150
(09953±04030)Center Bolt 200
(09954±04020)Arm 100

PP±70
± PREPARATIONSUSPENSION AND AXLE
122 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(09955±04041)Claw No.4
(09955±04051)Claw No.5
(09955±04061)Claw No.6
(09957±04010)Attachment
(09958±04011)Holder
09950±60010Replacer SetFront axle
Rear axle
Rear differential
(09951±00450)Replacer 45
(09951±00480)Replacer 48
(09951±00510)Replacer 51
(09951±00560)Replacer 56
(09951±00650)Replacer 65
09950±60020Replacer Set No.2Front axle
Rear axle
Rear differential
(09951±00710)Replacer 71

± PREPARATIONSUSPENSION AND AXLE
PP±71
123 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(09951±00720)Replacer 72
(09951±00780)Replacer 78
(09951±00810)Replacer 81
(09951±00890)Replacer 89
(09951±01030)Replacer 103
09950±70010Handle SetFront axle
Rear axle
Rear differential
(09951±07100)Handle 100
(09951±07150)Handle 150

PP0T2±03
PP±72
± PREPARATIONSUSPENSION AND AXLE
124 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
RECOMMENDED TOOLS
09025±00010Torque Wrench (30 kgf±cm)
09031±00030Pin Punch .
09040±00011Hexagon Wrench Set .
09905±00012Snap Ring No.1 Expander .
09905±00013Snap Ring Pliers .