Radiator: Service and Repair

Removal

1. Remove the under covers (A).

Tightening torque :
9.8 - 11.8N.m (1.0 - 1.2kgf.m, 7.2 - 8.7lb-ft)




2. Loosen the drain plug (A), and then drain the engine coolant.

CAUTION:
Never remove the radiator cap when the engine is hot. Serious scalding could be caused by hot fluid under high pressure escaping from the radiator.




3. Remove the radiator upper hose (A) and lower hose (B) and reservoir hose.




4. Remove the radiator.
(1) Disconnect the fan connector (A) and remove the fan assembly (B).

Tightening torque :
8.8 - 10.8N.m (0.9 - 1.1kgf.m, 6.5 - 7.9lb-ft)

(2) Remove the radiator upper mounting brackets (C).

Tightening torque :
8.8 - 10.8N.m (0.9 - 1.1kgf.m, 6.5 - 7.9lb-ft)





[Coupe]




(3) After pulling back the condenser fixing bracket and then, remove the radiator assembly.
5. Installation is reverse order of removal.

NOTE:
- Bleed air from the cooling system.
- Start engine and let it run until it warms up. (Until the radiator fan operates 3 or 4 times.)
- Turn off engine. Check the coolant level and add coolant if needed. This will allow trapped air to be removed from the cooling system.
- Put the radiator cap on tightly, then run engine again and check for leaks.

Inspection

Radiator Cap Testing
1. Remove the radiator cap, wet its seal with engine coolant, and then install it on a pressure tester.




2. Apply a pressure of 93.16 - 122.58kpa (0.95 - 1.25kg/cm2, 13.51 - 17.78psi).
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.

Radiator Leakage Test
1. Wait until engine is cool, then carefully remove the radiator cap and fill the radiator with engine coolant, then install it on the pressure tester.
2. Apply a pressure tester to the radiator and apply a pressure of 93.16 - 122.58kpa (0.95 - 1.25kg/cm2, 13.51 - 17.78psi).
3. Inspect for engine coolant leaks and a drop in pressure.
4. Remove the tester and reinstall the radiator cap.

NOTE:
Check for engine oil in the coolant and/or coolant in the engine oil.