How to Diagnose a Bad Heater Core?

Answer Heater cores use waste heat from the engine coolant system to warm the air in the passenger compartment. The heater core is essentially a small radiator that receives coolant through the heater hos... Read More »

Top Q&A For: How to Diagnose a Bad Heater Core

Can a Heater Core be Leaking by the Heater Hose?

A heater core is a radiator-like device located inside the passenger cabin of a vehicle. The core is heated by hot engine coolant. Both the heater core and the heater hoses may leak due to wear or ... Read More »

How to Diagnose & Replace a Heater Control Cable in a '95 Town Car?

The heater control cable in your 1995 Lincoln Town Car controls the vents. If the vents are not switching from the floor position up to the defrost mode, you will need to check the heater control c... Read More »

How to Put in a Heater Core?

The heater core is one of the primary parts of your vehicles heater. Hot coolant passes through the heater core much in the same way it passes through the radiator and a small fan blows on the heat... Read More »

How to Tell If Your Heater Core is Going Bad?

The heater core acts as a miniature radiator to allow antifreeze to flow through the thermostat to run the heating system. If the heater core is bad, the antifreeze won't pass through it and the he... Read More »