The Nissan Pathfinder Radiator fan draws critical air through the front mounted radiator when natural air flow is reduced to protect the SUV's engine. The early editions of the Pathfinder applied a mechanical Radiator fan that worked by means of a belt connection. The controlling device was a heat-sensitive clutch that caused the fan to spin faster as the coolant temperature increased. Thus, it offered a steady flow of cool air to facilitate crawling down a trail or idling in the city. The Radiator fan of the automobile is electric in nature and housed in a molded fan shroud. This auxiliary Radiator fan is driven by its own motor and only turns on when the sensor notices rising coolant heat. It is a great feature that helps save on power, further reduces engine noise, and allows tighter control of temperature. Although the drive method has changed, all Radiator fans still have the same job of moving air across the radiator fins. This strips heat from the circulating coolant to keep the V6 engine out of the danger zone and performing smoothly. The improvement also synchronized with efficiency objectives encountered across the larger Nissan family. The current Pathfinder model comes with a dual-speed electric system which is lighter than the earlier single-speed mechanical unit, yet purpose-built to satisfy stringent Nissan cooling specifications. This goes to show the Radiator fan still plays a hero in the cooling setup.
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