While it is possible to drive with a failing heater core, it can be dangerous and cause further damage to your vehicle.
- Engine overheating: A faulty heater core can restrict the flow of coolant, leading to engine overheating. This can cause serious damage to the engine, including the cylinder head and head gasket.
- Cabin fogging: A heater core that is leaking coolant can cause the windows to fog up, which can significantly reduce visibility. This is especially dangerous when driving in wet or snowy weather.
- Reduced heat: A damaged heater core will result in reduced heat inside the cabin. This can make driving uncomfortable, especially during cold weather.
- Coolant leaks: A failing heater core can leak coolant, which can cause the coolant level to drop. This can lead to engine overheating and other problems.
If you suspect that your heater core is failing, it is important to have it checked by a qualified mechanic as soon as possible.
