2000 LEXUS GS400 oil dipstick

A11125
Throttle Body and Intake Air Connector AssemblyWater Bypass Hose
PCV Hose
EVAP Hose
 Gasket
Air Assist Hose
Vacuum
Hose
PS Air Hose
Air Intake Chamber
Engine Wire
Clamp
Drive Belt
TensionerClamp Bracket
Ground StrapFuel Pressure
Pulsation Damper Clamp Bracket
Water Bypass
Outlet
No.1 Water Bypass Pipe
No.3 Timing Belt Cover O±Ring
Oil Filler CapFuel Inlet Pipe
PS Air Hose
Hose
Clamp
Timing Belt
Tensioner
PS Pump Stay
Oil Dipstick
and Guide
for A/T
PS Vane Pump Water Bypass Hose
28 (280, 21)
Engine Wire
 O±Ring
No.2 Timing Belt Cover
GasketGasket
21 (210, 15)
32.5 (325, 24)
 Gasket
 Gasket
Engine Wire
Clamp
 O±Ring  O±RingOil Dipstick and
Guide for Engine
27 (270, 20)
58 (590, 43)39.2 (400, 29)N´m (kgf´cm, ft´lbf) : Specified torque
 Non±reusable Part
Dust BootEngine Wire
Clamp
No.2 Vacuum Pipe
Hose Clamp
Vacuum Control
Valve Set
EM±30
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
1384 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

A02819
A09752
A02735
EM±34
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
1388 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(b) Remove the 3 bolts and nuts holding the front exhaust
pipe to the exhaust manifold.
(c) Remove the 2 bolts and pipe support bracket.
(d) Disconnect the front exhaust pipe from the exhaust man-
ifold, and remove the 2 gaskets.
10. REMOVE EXHAUST MANIFOLD
(a) Disconnect the 3 heated oxygen sensor connectors and
clamp.
(b) Remove the clamp and case clamp.
(c) Using a 14 mm deep socket wrench, remove the 8 nuts,
exhaust manifold and 2 gaskets.
11. REMOVE WATER BYPASS OUTLET AND NO.1
WATER BYPASS PIPE (See page CO±11)
12. REMOVE THROTTLE BODY AND INTAKE AIR
CONNECTOR ASSEMBLY (See page EM±5)
13. REMOVE OIL DIPSTICK AND GUIDE FOR ENGINE
(See page LU±6)
14. REMOVE OIL DIPSTICK AND GUIDE FOR A/T
(See page EM±62)
15. REMOVE AIR INTAKE CHAMBER (See page SF±46)
16. REMOVE VACUUM CONTROL VALVE SET AND NO.2
VACUUM PIPE
(a) Disconnect the VSV connector for the ACIS.
(b) Remove the 3 nuts, vacuum control valve set and No.2
vacuum pipe.
(c) Disconnect the engine wire clamp from the clamp bracket
of the No.2 vacuum pipe.
17. REMOVE NO.3 TIMING BELT COVER
18. REMOVE IGNITION COILS AND HIGH±TENSION
CORD SET ASSEMBLY (See page IG±7)
19. REMOVE SPARK PLUGS

A02735
A09752
A11121
Case Clamp
New Clamp
A02819
± ENGINE MECHANICAL (2JZ±GE)CYLINDER HEAD
EM±57
1411 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
15. INSTALL VACUUM CONTROL VALVE SET AND NO.2
VACUUM PIPE
(a) Install the vacuum control valve set and No.2 vacuum
pipe with the 3 nuts.
Torque: 21 N´m (210 kgf´cm, 15 ft´lbf)
(b) Install the engine wire clamp to the clamp bracket of the
No.2 vacuum pipe.
(c) Connect the VSV connector for the ACIS.
16. INSTALL AIR INTAKE CHAMBER (See page SF±49)
17. INSTALL OIL DIPSTICK AND GUIDE FOR A/T
(See page EM±68)
18. INSTALL OIL DIPSTICK AND GUIDE FOR ENGINE
(See page LU±12)
19. INSTALL THROTTLE BODY AND INTAKE AIR
CONNECTOR ASSEMBLY (See page EM±5)
20. INSTALL WATER BYPASS OUTLET AND NO.1 WATER
BYPASS PIPE (See page CO±13)
21. INSTALL EXHAUST MANIFOLD
(a) Install 2 new gaskets to the cylinder head.
(b) Using a 14 mm deep socket wrench, install the exhaust
manifold with the 8 nuts. Uniformly tighten the nuts in sev-
eral passes.
Torque: 40 N´m (408 kgf´cm, 30 ft´lbf)
(c) Connect the 3 heated oxygen sensor connectors and
clamp.
(d) Install a new clamp and the case clamp as shown in the
illustration.
22. CONNECT FRONT EXHAUST PIPE TO EXHAUST
MANIFOLD
(a) Temporarily install the pipe support bracket to the trans-
mission with the 2 bolts.
(b) Install 2 new gaskets to front end of the front exhaust pipe,
and connect the front exhaust pipe to the exhaust man-
ifold with the 3 bolts and nuts.
Torque: 44 N´m (440 kgf´cm, 32 ft´lbf)
(c) Tighten the 2 bolts holding the pipe support bracket to the
transmission.

A09754
 GasketEngine Wire
Clamp
Engine
StarterOil Dipstick and Guide for A/T
Starter Wire Hole Plug
N´m (kgf´cm, ft´lbf) : Specified torque
 Non±reusable part
40 (408, 30)
37 (380, 27)
x 8
 O±Ring
x 4 Pipe Clamp
PNP Switch Connector
Engine Wire
VSS Connector
Solenoid
Connector
Direct Clutch Speed
Sensor Connector
Oil Cooler Pipe for A/T
Exhaust Manifold
Transmission
(with Torque
Converter Clutch)
x 5
Ground Wire
72 (730, 53)
17 mm Bolt

83 (850, 61)x 8
Rear Plate
Drive Plate
48 (490, 35)
x 6
Front Spacer
14 mm Bolt
37 (380, 27)
± ENGINE MECHANICAL (2JZ±GE)ENGINE UNIT
EM±61
1415 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

A02743
O±Ring
PullClamp
A09755
Case
Clamp
A02729
A02728
A02730
EM±66
± ENGINE MECHANICAL (2JZ±GE)ENGINE UNIT
1420 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
19. REMOVE OIL DIPSTICK AND GUIDE FOR A/T
(a) Disconnect the engine wire clamp from the dipstick guide.
(b) Remove the bolt.
(c) Pull out the dipstick guide and dipstick from the dipstick
tube.
(d) Remove the O±ring from the dipstick guide.
20. REMOVE EXHAUST MANIFOLD
(a) Remove the case clamp.
(b) Disconnect the heated oxygen sensor (bank 2 sensor 1)
connector.
(c) Remove the 8 nuts, exhaust manifold and 2 gaskets.
21. REMOVE OIL COOLER PIPES FOR A/T
(a) Remove the 3 bolts and pipe clamps.
(b) Loosen the 2 union nuts, and remove the 2 oil cooler
pipes.
22. REMOVE TORQUE CONVERTER CLUTCH BOLTS
(a) Remove the hole plug.
(b) Turn the crankshaft pulley bolt to gain access to each bolt.
(c) Hold the crankshaft pulley bolt with a wrench, and remove
the 6 bolts.
23. R E M O V E 4 B O LT S H O L D I N G N O . 1 O I L PA N TO
TRANSMISSION
24. REMOVE STARTER
(a) Disconnect the starter connector.
(b) Remove the 2 bolts, clamp bracket and starter.

A02728
Dark Green
A09755
Case
Clamp
A02761
New O±Ring
PushClamp
A02799
A02795
± ENGINE MECHANICAL (2JZ±GE)ENGINE UNIT
EM±69
1423 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
(b) Hold the crankshaft pulley bolt with a wrench, and install
the 6 bolts evenly.
Torque: 48 N´m (490 kgf´cm, 35 ft´lbf)
HINT:
First install the dark green colored bolt, install the other bolts.
(c) Install the hole plug.
7. INSTALL OIL COOLER PIPE FOR A/T
8. INSTALL EXHAUST MANIFOLD
(a) Install 2 new gaskets to the cylinder head.
(b) Using a 14 mm deep socket wrench, install the exhaust
manifold with the 8 nuts. Uniformly tighten the nuts in sev-
eral passes.
Torque: 40 N´m (408 kgf´cm, 30 ft´lbf)
(c) Connect the heated oxygen sensor (bank 2 sensor 1)
connector.
(d) Install the case clamp.
9. INSTALL OIL DIPSTICK GUIDE AND DIPSTICK FOR
A/T
(a) Install a new O±ring to the dipstick guide.
(b) Push in the dipstick guide end to the dipstick tube of the
oil pan.
(c) Install the dipstick guide with the bolt.
(d) Connect the engine wire clamp to the dipstick guide.
(e) Install the dipstick.
10. INSTALL ENGINE AND TRANSMISSION ASSEMBLY
IN VEHICLE
(a) Attach the engine chain hoist to the engine hangers.
(b) Slowly lower the engine and transmission assembly into
the engine compartment.
(c) Insert the stud bolts of the front engine mounting brackets
into the stud bolt holes of the front suspension crossmem-
ber.
(d) Keep the engine level.
(e) Install the rear engine mounting member with the 4 bolts
and 4 nuts.
Torque:
25.5 N´m (260 kgf´cm, 19 ft´lbf) for bolts
13.5 N´m (135 kgf´cm 10 ft´lbf) for nuts
NOTICE:
Be careful of installation direction.

B00319
Recommended Viscosity (SAE):
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE °F
°C±20
±29 0
±1820
±740
460
1680
27100
38 10W±30
5W±30 PREFERRED
LU05G±04
B01610
Oil PressureOil Pressure SwitchGauge
Union Bolt
P12478
Adhesive
± LUBRICATION (2JZ±GE)OIL AND FILTER
LU±1
1573 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)
OIL AND FILTER
INSPECTION
1. CHECK OIL QUALITY
Check the oil for deterioration, entry of water, discoloring or thin-
ning.
If oil quality is visibly poor, replace the oil.
Oil grade:
API grade SJ, Energy±Conserving or ILSAC multi-
grade engine oil. SAE 5W±30 is the best choice for
your vehicle, for good fuel economy, and good start-
ing in cold weather.
2. CHECK ENGINE OIL LEVEL
After warming up the engine and then 5 minutes after the en-
gine stop, oil level should be between the low level and full level
marks of the dipstick.
If low, check for leakage and add oil up to the full level mark.
NOTICE:
Do not fill with engine oil above the full level mark.
3. REMOVE OIL PRESSURE SWITCH, AND INSTALL OIL
PRESSURE GAUGE
(a) Disconnect the oil pressure switch connector.
(b) Using SST, remove the oil pressure switch.
SST 09816±30010
(c) Install an oil pressure gauge.
4. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
5. CHECK OIL PRESSURE
Oil pressure:
At idle49 kPa (0.5 kgf/cm2, 7 psi) or more
At 3,000 rpm324 kPa (3.3 kgf/cm2, 47 psi) or more
6. REMOVE OIL PRESSURE GAUGE AND REINSTALL
OIL PRESSURE SWITCH
(a) Remove the oil pressure gauge.
(b) Tighten the union bolt.
Torque: 90 N´m (900 kgf´cm, 66 ft´lbf)
(c) Apply adhesive to 2 or 3 threads of the oil pressure switch.
Adhesive:
Part No.08833±00080, THREE BOND 1344,
LOCTITE 242 or equivalent
(d) Using SST, install the oil pressure switch.
SST 09816±30010
Torque: 15 N´m (150 kgf´cm, 11 ft´lbf)
(e) Connect the oil pressure switch connector.
7. START ENGINE AND CHECK FOR LEAKS

Z17748
A
AB
BSeal Width
4 ± 5 mm
P02404
New Gasket
A02760
New O±Ring
Push
LU±14
± LUBRICATION (2JZ±GE)OIL PUMP
1586 Author: Date:
2000 LEXUS GS300/GS400 (RM718U)

Using a non±residue solvent, clean both sealing
surfaces.
NOTICE:
Do not use a solvent which will affect the painted surfaces.
(b) Apply seal packing to the No.2 oil pan as shown in the il-
lustration.
Seal packing: Part No.08826±00080 or equivalent

Install a nozzle that has been cut to a 4 ± 5 mm (0.16
± 0.20 in.) opening.
HINT:
Avoid applying an excessive amount to the surface.

Parts must be assembled within 5 minutes of application.
Otherwise the material must be removed and reapplied.

Immediately remove nozzle from the tube and reinstall
cap.
(c) Install the No.2 oil pan with the 16 bolts and 2 nuts.
Torque: 9.0 N´m (90 kgf´cm, 80 in.´lbf)
6. INSTALL OIL LEVEL SENSOR
(a) Install a new gasket to the level sensor.
(b) Install the level sensor with the 4 bolts.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)
(c) Connect the level sensor connector.
7. INSTALL OIL DIPSTICK GUIDE AND DIPSTICK
(a) Install a new O±ring on the dipstick guide.
(b) Apply soapy water on the O±ring.
(c) Push in the dipstick guide into the guide hole of the No.1
oil pan.
(d) Install the dipstick guide with the bolt.
(e) Install the dipstick.
(f) Connect the engine wire clamp to the dipstick guide.
8. INSTALL CRANKSHAFT TIMING PULLEY, IDLER
PULLEY AND TIMING BELT (See page EM±23)