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Home >> Lexus >> 2004 >> LS 430 V8-4.3L (3UZ-FE) >> Repair and Diagnosis >> Engine, Cooling and Exhaust >> Cooling System >> Radiator >> Service and Repair >> Replacement
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Replacement









RADIATOR ASSY
REPLACEMENT
1. DISCONNECT BATTERY NEGATIVE TERMINAL
2. REMOVE ENGINE UNDER COVER NO.1
3. REMOVE AIR CLEANER INLET NO.1
4. DRAIN ENGINE COOLANT
5. REMOVE V-BANK COVER
6. REMOVE INTAKE AIR CONNECTOR PIPE
7. DISCONNECT RADIATOR HOSE NO.1
8. DISCONNECT RADIATOR HOSE NO.2
9. DISCONNECT OIL COOLER INLET TUBE NO.1
10. DISCONNECT OIL COOLER OUTLET TUBE NO.1
11. REMOVE AIR CLEANER ASSY





12. REMOVE RADIATOR AND FAN ASSEMBLY
a. Disconnect the cooling fan ECU connector.
b. Remove the 2 nuts and 2 radiator upper supports.
c. Remove the radiator and fan assembly.
d. Remove the 2 radiator lower supports.
13. REMOVE FAN ASSY
a. Disconnect the radiator reservoir hose from the radiator.
b. Remove the 6 bolts and fan.
14. INSTALL FAN ASSY
a. Install the fan with the 6 bolts.
Torque: 5.0 Nm (51 kgf-cm, 44 inch lbs.)
b. Connect the radiator reservoir hose to the radiator.
15. INSTALL RADIATOR AND FAN ASSEMBLY
a. Install the 2 radiator lower supports to the radiator.
b. Attach the 2 radiator lower supports on the radiator to the body bracket.
c. Install the radiator and fan assembly with the 2 radiator upper supports and 2 nuts.
Torque: 13.5 Nm (138 kgf-cm, 10 ft. lbs.)
d. Connect the cooling fan ECU connector.
16. INSTALL AIR CLEANER ASSY
17. INSTALL AIR CLEANER INLET NO.1
18. REFILL ENGINE COOLANT
19. CHECK FOR ENGINE COOLANT LEAKS
20. INSTALL ENGINE UNDER COVER NO.1
21. CONNECT BATTERY NEGATIVE TERMINAL

NOTICE: When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.

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