What are the functions of the radiator overflow tank in a ford explorer?
The radiator overflow tank holds excess coolant from the radiator. It also is called a coolant recovery tank, coolant reservoir or overflow tank. The radiator overflow tank is an optional but popular feature; not all Ford Explorers are equipped with it. Your tank would be located next to the radiator and look similar to the windshield washer fluid reservoir.FunctionThe radiator provides an essential function for the engine by regulating the engine’s temperature with coolant. As the coolant absorbs heat from the engine, it expands and requires storage space beyond the radiator. When the engine cools down, the coolant from the radiator overflow tank returns back to the radiator.PerformanceAir bubbles are removed from the coolant as it flows into the overflow tank, which allows the coolant to absorb heat faster. That may lead to better performance during situations that cause engine overheating, such as driving in high temperatures, idling for long periods, towing or climbing a grade.Conc