Home/Infiniti/M45/Infiniti M45 II (2002-2004)/Repair manual/Cooling System (Mechanical)/Engine Cooling System: Diagnosis

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Wiring diagrams Section: Cooling System (Mechanical)

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Engine Cooling System: Diagnosis Infiniti M45 II

Cooling System (Mechanical)

INSPECTION AFTER REMOVAL

Turning oil cooling fan motor shaft by hands check if it rotates smoothly without looseness.
Check visually for fluid leakage from cooling fan motor.
For oil pump inspection, refer to " «WATER PUMP»(ref-181178-S42447904442005080100000) ".

INSPECTION AFTER INSTALLATION

After installing water pump, check for leaks of the engine coolant using radiator cap tester. Refer to " «LEAK CHECK»(ref-181178-S14412616032005080100000) ".
Start the engine. Visually check that there is no leaks of the engine coolant and cooling fan fluid.