transmission LEXUS GS400 2000 Service Manual Online

± SERVICE SPECIFICATIONSAUTOMATIC TRANSMISSION
SS±43
199 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Shift schedule (1UZ±FE / SNOW mode)
Differential gear ratio 3.266
D, 4 position
(Throttle valve fully opened) 1 "2
2 " 3
3 " 4
4 " 5
5 " 4
4 " 3
3 " 2
2 " 1
(Throttle valve fully closed) 4 " 5
5 " 4
3 position
(Throttle valve fully opened) 1 " 2
2 " 3
4 " 3
3 " 2
2 " 1
2 position
(Throttle valve fully opened) 1 " 2
3 " 2
2 " 1
L position
(Throttle valve fully opened) 2 " 1
42 ± 56 km/h (26 ± 35 mph)
72 ± 89 km/h (45 ± 55 mph)
109 ± 135 km/h (68 ± 84 mph)
145 ± 174 km/h (90 ± 108 mph)
96 ± 119 km/h (60 ± 74 mph)
47 ± 64 km/h (29 ± 40 mph)
22 ± 32 km/h (17 ± 20 mph)
5 ± 10 km/h (3 ± 6 mph)
33 ± 39 km/h (21 ± 24 mph)
24 ± 30 km/h (15 ± 19 mph)
42 ± 56 km/h (26 ± 35 mph)
72 ± 89 km/h (45 ± 55 mph)
152 ± 167 km/h (94 ± 104 mph)
22 ± 32 km/h (17 ± 20 mph)
5 ± 10 km/h (3 ± 6 mph)
42 ± 56 km/h (26 ± 35 mph)
103 ± 111 km/h (64 ± 69 mph)
5 ± 10 km/h (3 ± 6 mph)
17 ± 23 km/h (11 ± 14 mph)
Shift schedule (2JZ±GE / NORM and PWR mode)
Differential gear ratio 3.916
D, 4 position
(Throttle valve fully opened) 1 "2
2 " 3
3 " 4
4 " 5
5 " 4
4 " 3
3 " 2
2 " 1
(Throttle valve fully closed) 4 " 5
5 " 4
3 position
(Throttle valve fully opened) 1 " 2
2 " 3
4 " 3
3 " 2
2 " 1
2 position
(Throttle valve fully opened) 1 " 2
3 " 2
2 " 1
L position
(Throttle valve fully opened) 2 " 1
53 ± 61 km/h (33 ± 38 mph)
81 ± 91 km/h (50 ± 57 mph)
124 ± 138 km/h (77 ± 86 mph)
177 ± 191 km/h (110 ± 119 mph)
171 ± 182 km/h (106 ± 113 mph)
112 ± 122 km/h (70 ± 76 mph)
63 ± 68 km/h (39 ± 42 mph)
34 ± 39 km/h (21 ± 24 mph)
39 ± 44 km/h (24 ± 27 mph)
22 ± 27 km/h (14 ± 17 mph)
53 ± 61 km/h (33 ± 38 mph)
81 ± 91 km/h (50 ± 57 mph)
129 ± 139 km/h (80 ± 86 mph)
63 ± 68 km/h (39 ± 42 mph)
34 ± 39 km/h (21 ± 24 mph)
53 ± 61 km/h (33 ± 38 mph)
87 ± 93 km/h (54 ± 58 mph)
34 ± 39 km/h (21 ± 24 mph)
16 ± 21 km/h (10 ± 13 mph)

SS±44
± SERVICE SPECIFICATIONSAUTOMATIC TRANSMISSION
200 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Shift schedule (2JZ±GE / SNOW mode)
Differential gear ratio 3.916
D, 4 position
(Throttle valve fully opened) 1 "2
2 " 3
3 " 4
4 " 5
5 " 4
4 " 3
3 " 2
2 " 1
(Throttle valve fully closed) 4 " 5
5 " 4
3 position
(Throttle valve fully opened) 1 " 2
2 " 3
4 " 3
3 " 2
2 " 1
2 position
(Throttle valve fully opened) 1 " 2
3 " 2
2 " 1
L position
(Throttle valve fully opened) 2 " 1
39 ± 50 km/h (24 ± 31 mph)
62 ± 74 km/h (39 ± 46 mph)
94 ± 112 km/h (58 ± 70 mph)
136 ± 157 km/h (85 ± 98 mph)
77 ± 91 km/h (48 ± 57 mph)
45 ± 55 km/h (28 ± 34 mph)
23 ± 31 km/h (14 ± 19 mph)
4 ± 8 km/h (2 ± 5 mph)
39 ± 44 km/h (24 ± 27 mph)
22 ± 27 km/h (14 ± 17 mph)
39 ± 50 km/h (24 ± 31 mph)
62 ± 74 km/h (39 ± 46 mph)
129 ± 139 km/h (80 ± 86 mph)
23 ± 31 km/h (14 ± 19 mph)
4 ± 8 km/h (2 ± 5 mph)
39 ± 50 km/h (24 ± 31 mph)
87 ± 93 km/h (54 ± 58 mph)
4 ± 8 km/h (2 ± 5 mph)
16 ± 21 km/h (10 ± 13 mph)
Lock±up point (1UZ±FE) (Throttle valve opening 5 %)
5th gear (D position) Lock±up ON
Lock±up OFF
4th gear (4 position) Lock±up ON
Lock±up OFF
58 ± 65 km/h (36 ± 40 mph)
55 ± 61 km/h (34 ± 38 mph)
140 ± 150 km/h (87 ± 93 mph)
133 ± 143 km/h (83 ± 89 mph)
Flex lock±up point (1UZ±FE) (Throttle valve opening 3 %)
D position (When accelerating) Lock±up ON
Lock±up OFF
4 position (When accelerating) Lock±up ON
Lock±up OFF
47 ± 53 km/h (29 ± 33 mph)
45 ± 51 km/h (28 ± 32 mph)
35 ± 41 km/h (22 ± 25 mph)
33 ± 39 km/h (21 ± 24 mph)
Lock±up point (2JZ±GE) (Throttle valve opening 5 %)
5th gear (D position) Lock±up ON
Lock±up OFF
4th gear (4 position) Lock±up ON
Lock±up OFF
56 ± 61 km/h (35 ± 38 mph)
54 ± 60 km/h (34 ± 37 mph)
56 ± 61 km/h (35 ± 38 mph)
54 ± 60 km/h (34 ± 37 mph)

± SERVICE SPECIFICATIONSAUTOMATIC TRANSMISSION
SS±45
201 Author: Date:
2000 LEXUS GS300/GS400 (RM718U) Flex lock±up point (2JZ±GE)
(Throttle valve opening 3 %)
D position (When accelerating)
5th gear Lock±up ON
Lock±up OFF
4th gear Lock±up ON
Lock±up OFF
4 position (When accelerating)
4th gear Lock±up ON
Lock±up OFF
(Throttle valve fully closed)
D position (When deceleration / A/C ON)
5th gear Lock±up ON
Lock±up OFF
4 position (When deceleration / A/C ON)
4th gear Lock±up ON
Lock±up OFF
D position (When deceleration / A/C OFF)
5th gear Lock±up ON
Lock±up OFF
4 position (When deceleration / A/C OFF)
4th gear Lock±up OFF
39 ± 44 km/h (24 ± 27 mph)
38 ± 43 km/h (24 ± 27 mph)
30 ± 34 km/h (19 ± 21 mph)
28 ± 33 km/h (17 ± 21 mph)
39 ± 44 km/h (24 ± 27 mph)
37 ± 42 km/h (23 ± 26 mph)
93 ± 102 km/h (58 ± 63 mph)
32 ± 53 km/h (20 ± 33 mph)
93 ± 102 km/h (58 ± 63 mph)
24 ± 40 km/h (15 ± 25 mph)
93 ± 102 km/h (58 ± 63 mph)
32 ± 37 km/h (20 ± 23 mph)
21 ± 28 km/h (13 ± 17 mph)

SS0F9±01
SS±46
± SERVICE SPECIFICATIONSAUTOMATIC TRANSMISSION
202 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Transmission output flange x Output shaft1261,28093
Extension housing x Transmission case3434525
Solenoid wiring clamp set bolt101007
Oil strainer x Valve body101007
Oil pan x Transmission case7.47565 in.´lbf
Drain plug2020515
Shift solenoid valve SLU and SLN lock plate set bolt101007
Shift solenoid valve SLT lock plate set bolt101007
Shift solenoid valve x Valve body101007
Valve body x Transmission case101007
Shift lever assembly x Body8.38574 in.´lbf
Control shaft x Control lever131289
Shift lock control unit assembly x Shift lever plate2.02017 in.´lbf
Shift lever housing set bolt and nut3.94035 in.´lbf
Exhaust manifold with TWC set nut 2JZ±GE3940029
Heated oxygen sensor x Front exhaust pipe4445033
Front floor center brace x Body7.47565 in.´lbf
Front exhaust pipe x Exhaust manifold 2JZ±GE4445033
Front exhaust pipe x Front TWC 1UZ±FE4445033
Front TWC x Exhaust manifold 1UZ±FE6263046
Pipe support bracket x Transmission4445033
Center exhaust pipe x Tail pipe4445033
Front exhaust pipe x Center exhaust pipe4445033
Heat insulator x Body5.45548 in.´lbf
Shift control rod x Shift lever assembly131309
Oil cooler pipe union nut4445033
Oil cooler pipe clamp set bolt5.45548 in.´lbf
Flywheel housing under cover x Transmission housing 1UZ±FE1818513
Torque converter clutch x Drive plate4849035
Engine rear mounting x Body2627020
Starter x Transmission 2JZ±GE3738027
Transmission x Engine 17 mm head
14 mm head72
37730
38053
27
Drive plate x Crankshaft8385061

SS0F8±01
SS±48
± SERVICE SPECIFICATIONSPROPELLER SHAFT
204 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Intermediate shaft x Transmission7980558
Propeller shaft x Differential7980558
Heat insulator x Body5.45548 in.´lbf
Exhaust pipe assembly x Exhaust manifold4445033
Front floor center brace x Body7.47565 in.´lbf
Heated oxygen sensor x Exhaust pipe assembly4445033
Center support bearing x Body3737527
Propeller shaft adjusting nut50 (69)515 (700)37 (51)
( ): For use without SST

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

SF0N9±04
B01568
Sound Scope
B01569
B01570
Ohmmeter
± SFI (2JZ±GE)INJECTOR
SF±19
1485 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
INJECTOR
ON±VEHICLE INSPECTION
1. REMOVE ENGINE COVER
Remove 4 nuts and engine cover.
2. INSPECT INJECTOR OPERATION
Check operation sound from each injector.
(1) With the engine running or cranking, use a sound
scope to check that there is normal operating noise
in proportion to engine speed.
(2) If you have no sound scope, you can check the in-
jector transmission operation with a screwdriver.
If no sound or an unusual sound is heard, check the wiring con-
nector, injector or injection signal from the ECM.
3. INSPECT INJECTOR RESISTANCE
(a) Disconnect the injector connectors.
(b) Using an ohmmeter, measure the resistance between the
terminals.
Resistance: 13.4 ± 14.2 W at 20°C (68°F)
If the resistance is not as specified, replace the injector.
(c) Reconnect the injector connectors.
4. REINSTALL ENGINE COVER
Reinstall the 4 engine cover with the 4 nuts.

B09507
B01620
Ohmmeter3 (CL±)
4 (CL+)
1 (M+)
2 (M±)
B01942VCOhmmeter
E2
B01943
VC Ohmmeter
E2
± SFI (2JZ±GE)THROTTLE BODY
SF±33
1499 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(2) Turn the A/C switch ON and OFF, and check the idle
speed.
Idle speed (Transmission in neutral):
700 ± 50 rpm (A/C OFF)
750 ± 50 rpm (A/C ON)
NOTICE:
Perform inspection under condition without electrical load.
(3) With engine idling, pinch the air assist hose and
check that engine speed drops, and then returns
back up to idle speed.
If operation is not as specified, check the throttle body, wiring
and ECM.
(f) After checking the above (b) to (e), perform the diving test
and check that there is no sense of incongruity.
3. INSPECT THROTTLE CONTROL MOTOR
(a) Disconnect the throttle control motor connector.
(b) Using an ohmmeter, measure the resistance between ter-
minal 3 (CL±) and 4 (CL+).
Resistance: 4.2 ± 5.2 W at 20°C (68°F)
(c) Using an ohmmeter, measure the resistance between ter-
minal 1 (M+) and 2 (M±).
Resistance: 0.3 ± 100 W at 20°C (68°F)
If the resistance is not as specified, replace the throttle control
motor. (See page SF±37)
(d) Reconnect the throttle control motor connector.
4. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the throttle position sensor connector.
(b) Using an ohmmeter, measure the resistance between ter-
minals VC and E2.
Resistance: 1.2 ± 3.2 kW at 20°C (68°F)
If the resistance is not as specified, replace the throttle position
sensor. (See page SF±37)
(c) Reconnect the throttle position sensor connector.
5. INSPECT ACCELERATOR PEDAL POSITION SEN-
SOR
(a) Disconnect the accelerator pedal position sensor con-
nector.
(b) Using an ohmmeter, measure the resistance between ter-
minals VC and E2.
Resistance: 1.2 ± 3.2 kW at 20°C (68°F)
If the resistance is not as specified, replace the accelerator ped-
al position sensor. (See page SF±37)