Antifreeze, once it loses its hot temperature in the coolant reservoir, can rejoin the engine cooling system and even heat up the interior of your vehicle. Similar to a radiator, this smaller sized variation, called the heater core, conducts the heat out of the coolant, helped by a fan, and into the vehicle’s cabin, which then heats the passengers. When removed of its heat, the coolant recedes into the water pump to rejoin the engine cooling system’s circuit.
Napa Service Assistant
You don’t have to be an expert to know that preventive maintenance is the best way to make sure your vehicle is running properly. Use our interactive vehicle tool to learn about the maintenance and services your NAPA AutoCare Center can provide.