2003 LEXUS LS430 sensor

Fig. 47: Removing Water By-Pass Joint RR
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
58.REMOVE WATER BYPASS PIPE SUB-ASSY
a. Disconnect the heater outlet hose from the water bypass pipe.
b. Disconnect the wire clamp (for knock sensor bank 1, 2) from the bracket of the water bypass pipe.
c. Remove the bolt.
d. Pull out the water bypass pipe from the water pump.
e. Remove the O-ring from the water bypass pipe.
59.REMOVE OIL LEVEL GAGE GUIDE
60.REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSY
61.REMOVE CAMSHAFT POSITION SENSOR
62.REMOVE VVT SENSOR
63.REMOVE KNOCK SENSOR
a. Disconnect the 2 knock sensor connectors.
b. Remove the 2 nuts and 2 knock sensors.

Fig. 48: Identifying Knock Sensor Connectors
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
64.REMOVE ENGINE HANGER NO.1
65.REMOVE ENGINE HANGER NO.2
66.REMOVE IGNITION COIL ASSY
67.REMOVE OIL FILTER BRACKET SUB-ASSY
a. Disconnect the oil pressure switch connector.
b. Remove the stud bolt, 2 nuts and oil filter bracket with gasket.
68.REMOVE CRANKSHAFT POSITION SENSOR
69.REMOVE ENGINE OIL LEVEL SENSOR
70.REMOVE EXHAUST MANIFOLD HEAT INSULATOR NO.1
71.REMOVE EXHAUST MANIFOLD SUB-ASSY RH
a. Remove the 8 nuts, exhaust manifold and
gasket.

Fig. 58: Installing Exhaust Manifold
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
85.INSTALL EXHAUST MANIFOLD HEAT INSULATOR NO.1
86.INSTALL ENGINE OIL LEVEL SENSOR
87.INSTALL CRANKSHAFT POSITION SENSOR (See REPLACEMENT
)
88.INSTALL OIL FILTER BRACKET SUB-ASSY
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
89.INSTALL IGNITION COIL ASSY
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
90.INSTALL ENGINE HANGER NO.2
Torque: 37 N.m (377 kgf.cm, 27 ft.lbf)
91.INSTALL ENGINE HANGER NO. 1
Torque: 37 N.m (377 kgf.cm, 27 ft.lbf)
92.INSTALL KNOCK SENSOR
a. Install the 2 knock sensors with the 2 nuts, as shown in the illustration.
Torque: 20 N.m (204 kgf.cm, 15 ft.lbf)
b. Connect the 2 knock sensor connectors.

Fig. 59: Identifying Knock Sensor
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
93.INSTALL VVT SENSOR
94.INSTALL CAMSHAFT POSITION SENSOR
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
95.INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSY (See REPLACEMENT
- RH
and REPLACEMENT
- LH )
96.INSTALL OIL LEVEL GAGE GUIDE
Torque: 7.5 N.m (77 kgf.cm, 66 in.lbf)
97.INSTALL WATER BYPASS PIPE SUB-ASSY
a. Install a new O-rin
g to the water bypass pipe.

b. Apply soapy water to the O-ring.
c. Push in the water bypass pipe end into the pipe hole of the water pump.
d. Install the water bypass pipe with the bolt.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
e. Install the wire clamp to the bracket of the water bypass pipe.
98.INSTALL WATER BYPASS JOINT RR
a. Install 2 new gaskets and the water bypass joint with the 4 nuts. Alternately tighten the nuts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
Fig. 60: Installing Water By
-Pass Joint RR
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
99.INSTALL WATER BYPASS JOINT FR
a. Install 2 new gaskets and the water bypass joint with the 4 nuts. Alternately tighten the nuts.
Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
b. Connect the ECT sensor connector.

Fig. 72: Identifying Torque Converter Clutch Bolts
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
108.INSTALL OIL COOLER INLET TUBE NO.1
109.INSTALL OIL COOLER OUTLET TUBE NO.1
110.INSTALL TRANSMISSION OIL FILTER TUBE SUB-ASSY
111.CONNECT ENGINE WIRE
a. Connect the engine wire to the transmission.
1. Connect the VSV connector.
2. Connect the PNP switch connector.
3. Connect the solenoid connector.
4. Connect the direct clutch speed sensor connector.
5. Connect the engine wire from the 3 wire clamps.
6. Connect the oil level sensor connector.
112.INSTALL ENGINE W/ TRANSMISSION ASSEMBLY
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 en
gine mounting brackets into the stud bolt holes of the front

Fig. 77: Installing Power Steering Gear Housing Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
114.INSTALL HEIGHT CONTROL SENSOR LINK SUB-ASSY FRONT (See REPLACEMENT
)
115.INSTALL PNEUMATIC FRONT RH W/SHOCK ABSORBER CYLINDER ASSY (See
REPLACEMENT
)
116.INSTALL PNEUMATIC FRONT LH W/SHOCK ABSORBER CYLINDER ASSY (See
REPLACEMENT
)
117.INSTALL FRONT SUSPENSION UPPER ARM ASSY RH (See REPLACEMENT
)
118.INSTALL FRONT SUSPENSION UPPER ARM ASSY LH (See REPLACEMENT
)
119.INSTALL FRONT DISC BRAKE CYLINDER ASSY RH (See OVERHAUL
)
120.INSTALL DISC BRAKE CYLINDER ASSY LH (See OVERHAUL
)
121.INSTALL STEERING SLIDING W/ SHAFT YOKE SUB-ASSY
a. Tighten the 2 bolts for sliding yoke.
Torque: 35 N.m (357 kgf.cm, 26 ft.lbf)

140.INSTALL ENGINE UNDER COVER NO.2
141.INSTALL ENGINE UNDER COVER NO.1
142.INSTALL FRONT WHEEL
143.INSTALL AIR CLEANER ASSY
144.INSTALL INTAKE AIR CONNECTOR PIPE
145.INSTALL AIR CLEANER INLET NO.1
146.INSTALL V-BANK COVER
147.INSTALL HOOD SUB-ASSY (See ADJUSTMENT
and OVERHAUL )
148.CONNECT BATTERY NEGATIVE TERMINAL
149.ADD AUTOMATIC TRANSMISSION FLUID
150.ADD ENGINE COOLANT (See REPLACEMENT
)
151.ADD ENGINE OIL (See ON
-VEHICLE INSPECTION )
152.ADD POWER STEERING FLUID
153.BLEED POWER STEERING FLUID
154.INSPECT AUTOMATIC TRANSMISSION FLUID (See ADJUSTMENT
)
155.INSPECT ENGINE OIL LEAKS
156.CHECK FOR ENGINE COOLANT LEAKS
157.INSPECT FOR FUEL LEAKS
158.CHECK FOR EXHAUST GAS LEAKS
159.INSPECT AND ADJUST FRONT WHEEL ALIGNMENT
160.INSPECT IGNITION TIMING
161.INSPECT ENGINE IDLE SPEED
162.INSPECT CO/HC
163.ADJUST ENGINE (See INSPECTION
)
164.CHECK ABS SPEED SENSOR SIGNAL (See TEST MODE PROCEDURE
)
OVERHAUL
1.REMOVE SPARK PLUG
2.REMOVE OIL FILLER CAP SUB-ASSY
3.REMOVE CYLINDER HEAD COVER SUB-ASSY LH
a. Remove the 9 bolts, 9 seal washers, cylinder head cover and gasket.
4.REMOVE CYLINDER HEAD COVER SUB-ASSY
a. Remove the 9 bolts, 9 seal washers, c
ylinder head cover and gasket.