2003 LEXUS LS430 replacement

Fig. 33: Exploded View Of Partial Engine Assy Components (15 Of 15)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
REPLACEMENT
1.WORK FOR PREVENTING GASOLINE FROM SPILLING OUT (See PRECAUTION
)
2.DISCONNECT BATTERY NEGATIVE TERMINAL
3.REMOVE HOOD SUB-ASSY (See OVERHAUL
)
4.REMOVE V-BANK COVER
5.REMOVE AIR CLEANER INLET NO.1
6.REMOVE INTAKE AIR CONNECTOR PIPE
7.REMOVE AIR CLEANER ASSY
8.REMOVE FRONT WHEEL
9.REMOVE ENGINE UNDER COVER NO.1
10.REMOVE ENGINE UNDER COVER NO.2
11.DRAIN ENGINE OIL
12.DRAIN ENGINE COOLANT

13.DRAIN AUTOMATIC TRANSMISSION FLUID
14.REMOVE RADIATOR ASSY (See REPLACEMENT
)
15.DISCONNECT FUEL PIPE SUB-ASSY NO.2 (See REPLACEMENT
)
16.REMOVE FAN AND GENERATOR V BELT (See REPLACEMENT
)
17.DISCONNECT ENGINE WIRE
a. Disconnect the engine wire from the ECM box.
b. Remove the nut, and disconnect the generator wire from the generator.
c. Disconnect the wire for generator wire from the wire clamp on generator.
d. Remove the bolt, and disconnect the ground cable from the stay on the generator.
e. Remove the 2 bolts, and disconnect the PS oil hose from the No. 1 oil pan.
f. Remove the bolt, and disconnect the ground strap from the body.
18.DISCONNECT AIR HOSE NO.5
19.DISCONNECT FUEL VAPOR FEED HOSE NO.2
20.DISCONNECT HEATER WATER INLET HOSE A
21.DISCONNECT HEATER WATER OUTLET HOSE A (FROM HEATER UNIT)
22.DISCONNECT VANE PUMP OIL RESERVOIR ASSY
23.DISCONNECT VANE PUMP ASSY
a. Disconnect the 2 PS air hoses.
b. Remove the 2 screws and RH engine under cover.
c. Disconnect the PS oil pressure switch connector.
d. Remove the 2 bolts and nut, and disconnect the pump from the engine.
e. Support the pump securely.
24.DISCONNECT COOLER COMPRESSOR ASSY
a. Disconnect the compressor connector.
b. Disconnect the wire clamp from the wire bracket on the compressor.
c. Remove the bolt, nut and stay.
d. Remove the bolt, and disconnect the wire bracket from the compressor.
e. Remove the bolt, and disconnect the compressor from the engine.
f. Support the cooler compressor securely.
25.REMOVE FRONT FLOOR BRACE CENTER
a. Remove the 4 bolts and brace center.
26.REMOVE EXHAUST PIPE ASSY (See REPLACEMENT
)
27.REMOVE W/ CATALYST CONVERTER ASSY
28.REMOVE FRONT FLOOR HEAT INSULATOR NO.1
29.REMOVE PARKING BRAKE CABLE HEAT INSULATOR
30.REMOVE PROPELLER W/ CENTER BEARING SHAFT ASSY (See OVERHAUL
)
31.REMOVE FLOOR SHIFT GEAR SHIFTING ROD SUB-ASSY
32.REMOVE STEERING SLIDING W/ SHAFT YOKE SUB-ASSY

a. Check the steering wheel at the straight-ahead position.
b. Remove the 2 bolts and sliding yoke from the steering intermediate shaft.
Fig. 34: Removing Bolts And Sliding Yoke

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
33.REMOVE FRONT DISC BRAKE CYLINDER ASSY RH (See OVERHAUL
)
34.REMOVE DISC BRAKE CYLINDER ASSY LH (See OVERHAUL
)
35.REMOVE FRONT SUSPENSION UPPER ARM ASSY RH (See REPLACEMENT
)
36.REMOVE FRONT SUSPENSION UPPER ARM ASSY LH (See REPLACEMENT
)
37.REMOVE PNEUMATIC FRONT RH W/ SHOCK ABSORBER CYLINDER ASSY (See
REPLACEMENT
)
38.REMOVE PNEUMATIC FRONT LH W/ SHOCK ABSORBER CYLINDER ASSY (See
REPLACEMENT
)
39.REMOVE HEIGHT CONTROL SENSOR LINK SUB-ASSY FRONT (See REPLACEMENT
)
40.REMOVE STABILIZER BRACKET FRONT (See REPLACEMENT
)
41.DISCONNECT POWER STEERING GEAR HOUSING ASSY
a. Remove the bolt, and disconnect the 2 PS oil tubes from the front frame.
b. Remove the 4 bolts, and disconnect the PS gear housing from the front frame.

2. Turn the crankshaft damper bolt to gain access to each bolt.
3. Hold the crankshaft damper bolt with a wrench, and remove the 6 bolts.
b. Remove the 10 bolts and ground strap.
c. Remove the transmission together with the torque converter clutch from the engine.
Fig. 39: Removing Flywheel Housing Under Cover

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
48.REMOVE DRIVE PLATE & RING GEAR SUB-ASSY
a. Remove the 8 bolts, rear spacer, ring gear and front spacer.
49.INSTALL ENGINE STAND
50.REMOVE THROTTLE BODY ASSY (See REPLACEMENT
)
51.REMOVE INTAKE MANIFOLD ASSY
a. Disconnect the VSV connector for EVAP.
b. Disconnect the EVAP hose from the VSV for EVAP.
c. Remove the bolt, disconnect the VSV for EVAP from the upper intake manifold.
d. Remove the bolt and V-bank cover bracket No. 2.
e. Remove the bolt and V-
bank cover bracket No. 3.

Fig. 45: Identifying Lower Intake Manifold
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
53.REMOVE STARTER ASSY (See REPLACEMENT
)

54.REMOVE GENERATOR ASSY (See REPLACEMENT )
55.REMOVE WATER INLET HOUSING
a. Remove the 2 bolts and inlet housing.
56.REMOVE WATER BYPASS JOINT FR
a. Disconnect the ECT sensor connector.
b. Remove the 4 nuts, water bypass joint and 2 gaskets.
Fig. 46: Identifying Water By
-Pass Joint FR
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
57.REMOVE WATER BYPASS JOINT RR
a. Disconnect the heater inlet hose from the water bypass joint.
b. Remove the 4 nuts, water bypass joint and 2 gaskets.

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.