Low Coolant Level
The heater core represents one of the final components through which hot engine coolant circulates before returning to the radiator. A fan blows air over the heater core, and the hot coolant inside the heater core tubes heats up the air before it comes out of your vents. Insufficient coolant levels mean the heater core lacks adequate heat to warm cabin air.
Speaking of the Heater Core…
A clogged heater core or coolant leakage from it prevents hot air from entering the cabin. Drivers may detect a distinctive sweet or maple syrup-like odor, which is the smell of escaping engine coolant. Additional symptoms include foggy windows and engine overheating.
Thermostat Problems
The thermostat controls coolant release into the engine. When malfunctioning or completely failed, it prevents coolant circulation through the heater core. A broken thermostat can keep your temperature gauge at C(old) even though your engine is getting hot, and the lack of coolant will eventually cause your engine to overheat.
C&C Automotive operates locations across Georgia and South Carolina, offering heating system diagnostics and repairs to address these issues.
