The Lexus RX330 Cooling Fan Assembly ensures that engine temperatures do not get out of control by forcing fresh air through the radiator when road speed may not provide adequate air circulation. Located immediately behind the grille, adjacent to the radiator core, the Cooling Fan Assembly contains an electric motor, robust fan blades, and a molded shroud to help direct air across the radiator fins to move heat rapidly away from the circulating coolant. Within the Lexus crossover range, this system provides reliability. Early designs of mechanical fans disappeared long before the RX330 came along, so all Lexus RX330s feature the more efficient electric style that only spins when sensors detect rising temperatures or low vehicle speed to save power and reduce noise. Owners of 2004 to 2006 models of the RX330 are thankful for that consistency because the Cooling Fan Assembly can kick in when idling at lights, crawling through traffic, and climbing steep grades to prevent your vehicle from overheating. Regular checking of the Cooling Fan Assembly will help to identify worn motors or cracked blades. Because of that consistency, the diagnosis of airflow problems on any Lexus in this series simply starts with a check of the Cooling Fan Assembly.
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