There is nothing more frustrating than turning on your Ford Explorer’s heater on a cold winter day only to have it blow out cold air. Not only is it uncomfortable, but it can also be a safety hazard if you can’t defrost your windows properly. In this article, we will discuss the possible causes of why your Ford Explorer’s heater is blowing cold air and the solutions to fix it.
Low Coolant Level
One of the most common causes of a Ford Explorer’s heater blowing cold air is a low coolant level. The coolant is responsible for circulating through the engine and the heater core to provide heat. If the coolant level is too low, it can’t circulate properly, causing the heater to blow out cold air. You can check the coolant level by looking at the overflow tank or radiator.
Faulty Thermostat
Another possible cause of a Ford Explorer’s heater blowing cold air is a faulty thermostat. The thermostat is responsible for regulating the engine’s temperature and allowing coolant to flow through the engine and heater core. If the thermostat is stuck open, it can’t regulate the engine’s temperature, causing the heater to blow out cold air. You can test the thermostat by checking the engine’s temperature with a thermometer.
Blocked Heater Core
A blocked heater core can also cause a Ford Explorer’s heater to blow cold air. The heater core is responsible for transferring heat from the engine to the cabin of the vehicle. If the heater core is clogged with debris or dirt, it can’t transfer heat properly, causing the heater to blow out cold air. You can flush the heater core to remove any blockages.
Broken Blend Door
The blend door is responsible for directing air to the heater core or the air conditioning system. If the blend door is broken or stuck, it can’t direct the air properly, causing the heater to blow out cold air. You can test the blend door by turning on the heater and air conditioning system and listening for any clicking or banging noises.
Faulty Heater Control Valve
The heater control valve is responsible for regulating the flow of coolant to the heater core. If the heater control valve is faulty, it can’t regulate the flow of coolant, causing the heater to blow out cold air. You can test the heater control valve by checking the temperature of the hoses that connect to the heater core.
Conclusion
If your Ford Explorer’s heater is blowing cold air, it can be caused by several different factors. By checking the coolant level, thermostat, heater core, blend door, and heater control valve, you can diagnose the problem and find a solution. Don’t let a cold car ruin your winter, take the time to fix your Ford Explorer’s heater and stay warm on the road!
