LEXUS LS430 2003 Factory Repair Manual

Fig. 84: Installing Cooler Refrigerant Suction Hose No. 1
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
15.INSTALL COOLER REFRIGERANT DISCHARGE HOSE NO. 1
a. Remove the attached vinyl tape from the hose.
b. Sufficiently apply compressor oil to the new O-ring and fitting surface of the compressor and
magnetic clutch.
Compressor oil: ND-OIL 8 or equivalent
c. Install an O-ring to the cooler refrigerant discharge hose No. 1.
d. Install the cooler refrigerant discharge hose No. 1 to the compressor and magnetic clutch with the
nut.
Torque: 9.8 N.m (100 kgf.cm, 7 ft.lbf)

Fig. 85: Installing Cooler Refrigerant Discharge Hose No. 1
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
16.INSTALL FAN AND GENERATOR V BELT (See REPLACEMENT
)
17.INSTALL AIR CLEANER INLET NO. 1 (See step 25 in REPLACEMENT
)
18.CONNECT NEGATIVE TERMINAL CABLE TO BATTERY
19.CHARGE REFRIGERANT (See REPLACEMENT
)
20.WARM UP ENGINE
21.INSPECT FOR REFRIGERANT LEAKAGE (See REPLACEMENT
)
ON-VEHICLE INSPECTION
1.INSPECT COOLER CONDENSER ASSY
a. If the fins of the cooler condenser assy are dirty, clean them with water and dry them with

compressed air.
b. If the fins of the cooler condenser assy are bent, straighten them using a screwdriver or pliers.
2.INSPECT CONDENSER FOR REFRIGERANT LEAKAGE
a. Using a halogen leak detector, check the pipe joints for refrigerant leakage.
b. If refrigerant leakage is detected in a joint, check the torque of the joint.
COMPONENTS

Fig. 86: Identifying Cooler Condenser Assy Components And Replacements (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 87: Identifying Cooler Condenser Assy Components And Replacements (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
OVERHAUL
HINT:
Installation is in the reverse order of removal.
See COMPONENTS .
1.DISCONNECT NEGATIVE TERMINAL CABLE FROM BATTERY
2.EVACUATE REFRIGERANT HFC-134A (R134A) (See REPLACEMENT
)
3.REMOVE AIR CLEANER INLET NO. 1 (See REPLACEMENT
)
4.REMOVE AIR CLEANER ASSY (See REPLACEMENT
)
5.DISCONNECT DISCHARGE HOSE SUB-ASSY NO. 1
a. Remove the bolt and disconnect the discharge hose sub-assy No. 1 from the condenser assy.
b. Remove the O-ring from the discharge hose sub-assy No. 1.

Fig. 88: Disconnecting Discharge Hose Sub-Assy No. 1
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
6.DISCONNECT LIQUID TUBE SUB-ASSY A
a. Remove the bolt and disconnect the liquid tube sub-assy A from the cooler condenser assy.
b. Remove the O-ring from the liquid tube sub-assy A.

Fig. 89: Disconnecting Liquid Tube Sub-Assy A
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7.REMOVE HIGH PITCHED HORN ASSY (See REPLACEMENT
)
8.REMOVE LOW PITCHED HORN ASSY (See REPLACEMENT
)
9.REMOVE SMOG VENTILATION SENSOR
a. Disconnect the connector.
b. Remove the bolt and smog ventilation sensor.

Fig. 90: Removing Smog Ventilation Sensor Bolt
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
10.REMOVE HOOD LOCK ASSY
a. Remove the 2 bolts, nut and hood lock ass
y.

Fig. 91: Removing Hood Lock Assy
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
11.REMOVE RADIATOR SUPPORT SUB-ASSY UPPER
a. Remove the 2 nuts and 2 radiator brackets.

Fig. 92: Removing Radiator Brackets
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Remove the 4 bolts and 2 condenser brackets.