Posted on 11/28/2025
Your cooling fan is the quiet helper that keeps temperatures steady when the car is not moving fast. In traffic or at long stoplights, it pulls air through the radiator so heat leaves the engine. When the fan slows down, runs weakly, or stops altogether, the temperature gauge can creep up quickly. Recognizing the signs early protects the engine and keeps you from getting stranded. What the Cooling Fan Actually Does At idle and low speeds, there is not enough natural airflow through the grille to cool the radiator. The electric or clutch-driven fan makes up the difference by pulling air across the radiator fins and A/C condenser. That airflow drops coolant temperature, which stabilizes engine operating heat. A healthy fan prevents heat soak after shutdown and helps the A/C stay cold when you are not moving. Electric vs. Clutch Fans and How They Are Controlled Most modern vehicles use electric fans with one or two speeds, controlled by the engine co ... read more