Ford Crown Victoria antifreeze smell coming from interior vents on Ford Crown Victoria

Some Ford Crown Victoria owners report experiencing an antifreeze smell coming from the interior vents, which can be attributed to several potential issues. Commonly, a leaking coolant system, caused by a broken hose, damaged gasket, or loose clamps, is a frequent culprit. Additionally, some owners may find that a worn-out heater core is responsible for releasing antifreeze into the cabin air, resulting in the distinct sweet smell. Coolant leaks from various components, including the reservoir, valve, and radiator, can also contribute to this issue, often exacerbated by loose connectors. If the smell intensifies while the heater is on, it may indicate a leaking heater core, while a stronger odor outside the vehicle could signal more serious problems like a leaking head gasket or cracked radiator. In severe cases, a blown head gasket may be the source, especially if no visible leaks are present in the engine bay. It is crucial for owners to thoroughly inspect the coolant system and address any leaks or failures promptly to prevent further damage and resolve the antifreeze smell.