Engine Cooling Fan Assembly for Nissan

This cooling fan is a key part of the vehicle’s temperature control system. It is needed to pull or push air through the radiator when the car is idling, moving slowly, or running the A/C on hot days ️. Without steady airflow, coolant can’t release heat fast enough, and engine temperature rises quickly.

How It Works

The fan mounts near the radiator and is driven by an electric motor. When the ECU receives a signal from the coolant temperature sensor (or A/C pressure request), it activates the fan to increase airflow. This helps keep coolant within safe range, protects the head gasket, and stabilizes performance in traffic .

Why Replacing It Matters

If the fan is weak, noisy, or not spinning, you may see overheating at idle, fluctuating temperature gauge, poor A/C cooling, or coolant boil-over. A failed unit can lead to warped cylinder head, cracked radiator, damaged hoses, and costly engine repair ⚠️.

Common Failure Signs

• Fan not turning on with hot engine
• Grinding or wobbling noise
• Overheats in stop-and-go traffic
• A/C loses cooling when stopped

Compatibility

• Infiniti FX35
• Infiniti FX45