Below are the symptoms of a leaking heater core If you suspect a clog instead, check the “symptoms of a clogged heater core” section below 1) low coolant level one of the most common signs of heater core trouble is mysteriously disappearing coolant A heater core is an essential part of your vehicle’s heating and cooling system It is responsible for providing heat to the interior of your car during cold weather by using hot coolant from the engine If your heater core is leaking, it can cause a variety of issues, including decreased heating performance, coolant leaks, and even damage to other parts of your vehicle
A bad heater core will exhibit symptoms such as a problem with the engine coolant system, a smell in the car, fluid leaking from behind the dashboard and a car heating system that doesn’t work The heater core is responsible for heating up the inside of your car when it’s cold outside It does this by taking heat from the engine coolant system If the heater core isn’t working properly. How to test a heater core A leaking heater core can also cause the windshield to fog up, as coolant vapor travels through the defrost vents
