Posted on 1/8/2025
What Are the Signs of a Leaking Heater Core? A leaking heater core can cause a variety of problems in your vehicle, and recognizing the warning signs early can save you from costly repairs. This critical component of your car’s heating and cooling system is essential for maintaining comfort in colder months and ensuring the proper functioning of your vehicle. Here are some key indicators that your heater core might be leaking: Signs of a Leaking Heater CoreFogged-Up Windows When Starting the Vehicle If your windows fog up shortly after starting your car, especially when the heater is on, it could be a sign of coolant vapor leaking from the heater core into the cabin. Coolant on the Floorboards Puddles or a damp feeling on the passenger-side floorboards often indicate a leaking heater core. Coolant has a sweet smell, so if you notice an unusual odor in your car, check for wet spots under the dash. ... read more