Why Engines Overheat at Red Lights from Cooling Fan Problems
When your engine overheats while idling but cools down on the highway, a faulty cooling fan, not a damaged radiator, is usually to blame. While radiators rely on vehicle motion for airflow, cooling fans actively pull air at low speeds. Diagnosing relay failures, blown fuses, and PWM control modules first prevents misdiagnosis and avoids expensive, […]