Clogged Heater Core?

Answer The heater core is similar to a small radiator in the heating system the antifreeze passes through. Over time, old coolant can clog up the core. A clogged core won't allow the antifreeze to pass th... Read More »

Top Q&A For: Clogged Heater Core

How to Clean Clogged Heater Core Fins?

When the heating system in your car is not providing an adequate amount of heat, the heater core may be plugged. This can occur when debris gets stuck in the fins. You can clean these by performing... Read More »

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 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 »

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 »