service LEXUS GS400 2000 Service Manual Online

SS0FF±03
SS±64
± SERVICE SPECIFICATIONSBODY
220 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
BODY
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
FRONT BUMPER±±±
Front bumper cover x Body5.45548 in.´lbf
Reinforcement x Body2930022
REAR BUMPER±±±
Reinforcement x Body2829021
HOOD±±±
Hood support x Hood2222516
Hood x Hood hinge2626519
Radiator support upper seal x Door lock8.08271
Hood lock nut x Hood lock8.08271
FRONT DOOR±±±
Outside handle x Door panel5.55649 in.´lbf
Door lock striker x Door panel2323517
Door hinge x Body32.533124
Door hinge x Door panel32.533124
Window regulator x Door panel1111 28
Door lock x Door panel5.55649 in.´lbf
REAR DOOR±±±
Outside handle x Door panel5.55649 in.´lbf
Door hinge x Door panel32.533124
Door hinge x Body32.533124
Window regulator x Door panel5.45548 in.´lbf
Door lock x Door panel5.45548 in.´lbf
OUTSIDE REAR VIEW MIRROR±±±
Outside rear view mirror x Door panel5.45548 in.´lbf
LUGGAGE COMPARTMENT DOOR AND HINGE±±±
Door hinge x Door panel8.08271 in.´lbf
Door lock striker x Body5.55649 in.´lbf
Door hinge x Body12.51279
FUEL LID±±±
Lock retainer x Opening lid5.55649 in.´lbf
Fuel lid lock assembly x Body Luggage side nut:5.55649 in.´lbf
Fuel lid side nut:8.08271 in.´lbf
FRONT WIPER AND WASHER±±±
Wiper arm x Wiper link2222016
Wiper link x Body5.45548 in.´lbf
SLIDING ROOF±±±
Drive rail x Bracket5.55649 in.´lbf
Sliding roof housing x Body5.55649 in.´lbf
Drive rail x Bracket8.08271 in.´lbf
Bracket x Body8.08271 in.´lbf
Sliding roof glass x Drive gear5.55649 in.´lbf

± SERVICE SPECIFICATIONSBODY
SS±65
221 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) INSTRUMENT PANEL
±±±
Steering wheel nut3536026
Front passenger airbag assembly x reinforcement5.65750 in.´lbf
FRONT SEAT±±±
Side airbag assembly x Seatback frame5.45548 in.´lbf
Seat x Body3737527
Seatback x Seat adjuster6162245
Seat cushion x Seat adjuster1919414
REAR SEAT±±±
Seatback x Body1818513
SEAT BELT±±±
Front Seat Belt:±±±
Adjustable anchor x Body4243031
Shoulder anchor x Adjustable anchor4243031
Outer belt x Front seat4243031
Retractor x Body Upper Bolt:7.57666 in.´lbf
Lower Bolt:4243031
Inner belt x Seat4243031
Rear Seat Belt:±±±
Floor anchor x Body4243031
Inner belt x Body4243031
Retractor x Body4243031
Tether anchor x Body2020414

SS0F5±01
SS±66
± SERVICE SPECIFICATIONSAIR CONDITIONING
222 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
AIR CONDITIONING
SERVICE DATA
Refrigerant volume600 ± 50 g (21.16 ± 1.76 oz.)
Idle±up Speed (GS300) Magnetic clutch not engaged700 ± 50 rpmIdle u S eed (GS300) Magnetic clutch not engaged
Magnetic clutch engaged800 ± 50 rpm
Idle±up Speed (GS400) Magnetic clutch not engaged750 ± 50 rpmIdle u S eed (GS400) Magnetic clutch not engaged
Magnetic clutch engaged800 ± 50 rpm
Magnetic clutch clearance0.5 ± 0.15 mm (0.020 ± 0.0059 in.)

SS0F6±01
± SERVICE SPECIFICATIONSAIR CONDITIONING
SS±67
223 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Compressor x Discharge hose101007
Compressor x Suction hose101007
Compressor x Engine (GS300) Bolt5253038Com ressor x Engine (GS300) Bolt
Nut2626519
Compressor x Engine (GS400)4950036
PS pump x Engine (GS300)5859043
PS pump bracket x Engine (GS300)5253038
Compressor bracket x PS pump bracket5253038
Stay x Engine (GS400)2930022
Pressure plate x Compressor13.21359
A/C unit x Liquid and suction tube101007
Evaporator x Tube and accessory4.14236 in.´lbf
Expansion valve x Tube and accessory4.14236 in.´lbf
Condenser x Discharge hose101007
Condenser x Liquid tube101007
Pressure switch x Liquid tube101007
ECT switch x Radiator7.47565 in.´lbf
Suction line101007

SS0FI±01
SS±8
± SERVICE SPECIFICATIONSENGINE MECHANICAL (2JZ±GE)
164 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
No.3 timing belt cover x Cylinder head8.08071 in.´lbf
Intake air connector x Air intake chamber2828021
Throttle body bracket x Cylinder head2121015
Timing belt plate x Oil pump8.08071 in.´lbf
Idler pulley x Oil pump3535026
No.1 timing belt cover x Oil pump8.08071 in.´lbf
Camshaft timing pulley x Camshaft8181060
Straight screw plug x Camshaft timing pulley1515011
No.1 oil pipe x No.3 camshaft bearing cap5555041
Cylinder head cover x Cylinder head8.58575 in.´lbf
High±tension cord x Cylinder head cover8.08071 in.´lbf
Timing belt tensioner x Oil pump2727020
Crankshaft pulley x Crankshaft3303,300243
Drive belt tensioner x Cylinder head2121015
No.2 timing belt cover x Cylinder head8.08071 in.´lbf
PS pump front bracket x PS vane pump5859043
PS pump front bracket x Cylinder block5253038
Camshaft bearing cap x Cylinder head2020014
ECT sensor x Cylinder head19.620014
Engine hanger x Cylinder head4040030
Water outlet x Cylinder head2828021
Cylinder head x Cylinder head 1st
2nd
3rd35
Turn 90°
Turn 90°350
Turn 90°
Turn 90°26
Turn 90°
Turn 90°
No.3 camshaft bearing cap x Cylinder head Hexagon bolt5.05044 in.´lbf
No.4 timing belt cover x Cylinder head8.08071 in.´lbf
Cylinder head cover x Cylinder head8.58575 in.´lbf
Intake manifold x Cylinder head2828021
Manifold stay x Intake manifold4040030
Manifold stay x Cylinder block4040030
Vacuum control valve set x Intake manifold2121015
Exhaust manifold x Cylinder head4040830
Front exhaust pipe x Exhaust manifold4444032
Pipe support bracket x Transmission4444032
PS vane pump x Cylinder block57.959043
PS vane pump x A/C compressor57.959043
PS pump rear stay x PS pump bracket39.240029
PS pump rear stay x Manifold stay39.240030
Engine hanger x Cylinder head4040030
Rear support member x Body25.526019
Drive plate x Crankshaft8385061
Transmission x Cylinder block7273053
Starter x Transmission3738027
No.1 oil pan x Transmission3738027

± SERVICE SPECIFICATIONSENGINE MECHANICAL (2JZ±GE)
SS±9
165 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)Part tightened
N´mkgf´cmft´lbf
Drive plate x Torque converter clutch4849035
Rear support member x Engine rear mounting insulator13.513510
Front suspension crossmember x Engine mounting insulator7071452
PS gear housing x Front suspension member6566048
Sliding yoke x Steering intermediate shaft3536026
Transmission control rod x Shift lever131309
Transmission control rod x Transmission131309
A/C compressor x Cylinder block Stud bolt
Bolt and nut26
52265
53019
38
Fuel inlet hose x Fuel pipe support2930022
Front suspension member brace x Front suspension member5859043
Front suspension member brace x Strut bar bracket plate5859043
Connecting rod cap x Connecting rod 1st
2nd30
Turn 90°300
Turn 90°22
Turn 90°
Main bearing cap x Cylinder block 1st
2nd45
Turn 90°450
Turn 90°33
Turn 90°
Rear oil seal retainer x Cylinder block6.06053
Engine mounting bracket x Cylinder block5959044
Fuel inlet pipe x Cylinder block2929021
No.1 oil pipe x Cylinder block5555041
Oil filter bracket x Cylinder block9090066
No.2 water bypass pipe x Water pump2121015
No.2 water bypass pipe x Cylinder block2121015
Generator x Water pump4040030
Generator x Cylinder block4040030
Front exhaust pipe x Center exhaust pipe4444032
Center exhaust pipe x Tailpipe4444032
Heated oxygen sensor x Front exhaust pipe4545033

SF0N4±01
B01876
B01877
Pull
Remove
Plug
B01878
B01874
Fuel
Sub Suction
Hose
± SFI (2JZ±GE)FUEL PUMP
SF±11
1477 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
REMOVAL
CAUTION:
Do not smoke or work near an open frame when working
the fuel pump.
1. REMOVE REAR SEAT CUSHION
2. REMOVE FLOOR SERVICE HOLE COVER
Remove the 3 cap nuts and service hole cover.
3. DISCONNECT FUEL PUMP & SENDER GAUGE CON-
NECTOR
4. DISCONNECT FUEL TANK MAIN TUBE (FUEL TUBE
CONNECTOR) FROM FUEL SECTION PLATE
CAUTION:

Perform disconnecting operation of the fuel tube con-
nector (quick type) after observing precaution. (See
page SF±1)

As there is retained pressure in the fuel line, prevent
it from splashing inside the vehicle compartment.
(a) Remove the tube joint clip.
(b) Pull out the fuel main tube.
(c) Plug the port of the fuel suction plate with a clean rubber
cap.
5. REMOVE FUEL PUMP AND SENDER GAUGE AS-
SEMBLY FROM FUEL TANK
(a) Remove the 8 bolts and fuel tank vent tube set plate.
(b) Lift up the fuel pump and sender gauge assembly, and
disconnect the fuel sub suction hose from the fuel return
jet tube and remove the fuel pump, sender gauge assem-
bly and gasket.
6. REMOVE NO.2 FUEL SUCTION SUPPORT
(See page SF±17)
7. REMOVE FUEL PRESSURE REGULATOR AND FUEL
RETURN JET TUBE ASSEMBLY (See page SF±17)

B01874
Fuel
Sub Suction
Hose
B01878
B02043
Attach
Install
B01876
SF±14
± SFI (2JZ±GE)FUEL PUMP
1480 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
7. INSTALL FUEL PUMP AND SENDER GAUGE AS-
SEMBLY TO FUEL TANK
(a) Install a new gasket to the fuel suction plate.
(b) Connect the fuel sub suction hose to the fuel return jet
tube.
(c) Attach the fuel pump and sender gauge assembly to the
fuel tank.
(d) Install the fuel tank vent tube set plate with the 8 bolts.
Torque: 3.5 N´m (36 kgf´cm, 31 in.´lbf)
8. CONNECT FUEL TANK MAIN TUBE (FUEL TUBE CON-
NECTOR) TO FUEL SUCTION PLATE
(a) Attach the fuel tube connector to the port of the fuel suc-
tion plate.
(b) Install the tube joint clip.
9. CONNECT FUEL PUMP & SENDER GAUGE CONNEC-
TOR
10. CHECK FOR FUEL LEAKS (See page SF±1)
11. INSTALL FLOOR SERVICE HOLE COVER
Install the service hole cover with the 3 cap nuts.
12. INSTALL REAR SEAT CUSHION

SF0N6±01
B01873
Rear Seat Cushion
Floor Service Hole Cover
Fuel Pump & Sender Gauge
Connector
Fuel Tank Vent Tube
Set PlateFuel Tank Main Tube
Tube Joint Clip
Fuel Pump and Sender Gauge
Assembly
Fuel Sub Suction Hose

Non±reusable part

Gasket
x 8
N´m (kgf´cm, ft´lbf) : Specified torque
3.5 (36, 31 in.´lbf)
± SFI (2JZ±GE)FUEL PRESSURE REGULATOR
SF±15
1481 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
FUEL PRESSURE REGULATOR
COMPONENTS

B01982
LEXUS
Hand±Held
Tester
B01879
Ohmmeter54
B01880
5
4 Battery
± SFI (2JZ±GE)FUEL PUMP
SF±7
1473 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(f) Connect a LEXUS hand±held tester to the DLC3.
(See step 1 in check fuel pump operation (a) to (e))
(g) Measure the fuel pressure.
Fuel pressure:
304 ± 343 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check the fuel hoses and connections, fuel
pump, fuel filter and fuel pressure regulator.
(h) Disconnect the LEXUS hand±held tester from the DLC3.
(i) Start the engine.
(j) Measure the fuel pressure at idle.
Fuel pressure:
304 ± 343 kPa (3.1 ± 3.5 kgf/cm
2, 44 ± 50 psi)
(k) Stop the engine.
(l) Check that the fuel pressure remains as specified for 5
minutes after the engine has stopped.
Fuel pressure: 147 kPa (1.5 kgf/cm
2, 21 psi) or more
If pressure is not as specified, check the fuel pump, pressure
regulator and/or injectors.
(m) After checking fuel pressure, disconnect the negative (±)
terminal cable from the battery and carefully remove SST
to prevent gasoline from splashing.
SST 09268±45014
(n) Reconnect the fuel inlet hose to the fuel pipe support with
2 new gaskets and the union bolt.
Torque: 29 N´m (300 kgf´cm, 21 ft´lbf)
(o) Reconnect the negative (±) terminal cable to the battery.
(p) Check for fuel leaks.
3. INSPECT FUEL PUMP
(a) Remove the rear seat cushion.
(b) Remove the 3 cap nuts and floor service hole cover.
(c) Disconnect the fuel pump & sender gauge connector.
(d) Using an ohmmeter, measure the resistance between ter-
minals 4 and 5.
Resistance: 0.2 ± 3.0 W at 20°C (68°F)
If the resistance is not as specified, replace the fuel pump.
(e) Inspect the fuel pump operation.
Connect the positive (+) lead from the battery to terminal
4 of the connector, and the negative (±) lead to terminal
5. Check that the fuel pump operates.
NOTICE:

These tests must be done quickly (within 10 seconds)
to prevent the coil burning out.

Keep the fuel pump as far away from the battery as
possible.

Always do the switching at the battery side.