Why does your car smell like gas when you turn on your heater?

If your car smells like gas when you turn on the heater, it could indicate a fuel leak in the engine or fuel system. The heater draws air from the engine compartment, and if there's a leak, the gas fumes can be pulled into the cabin. Additionally, a malfunctioning fuel injector or a damaged fuel line might contribute to the odor. It's crucial to address this issue immediately, as it can be a fire hazard.