The heater core is a small radiator that warms the car’s cabin using hot coolant from the engine. The cooling system’s hoses circulate liquid coolant through the heater core as they do through the ...

We've all been there—you're just cruising along in your vintage Vette and you get a whiff of coolant. Then, you notice a drip in the passenger-side floorboard. The dreaded heater core leak is ...

My 2008 Jeep JK Wrangler has always had good heat and A/C and is, in my opinion, such an improvement over the older Jeeps. But I am having a problem with the heat this year. My A/C was ice-cold this ...

Restoring your heater box with A/C may not be the last thing someone will check out on your car, but it certainly won't be the first. Paint, engine, interior, dash, and then maybe the undercarriage is ...

Seeing a puddle of coolant under your car is never a good thing. Whether it’s coming from your radiator, water pump, heater core, freeze plugs, or other portion of your cooling system, it can mean big ...

For those who drive their vintage Mustangs in the fall and winter months, having a functioning heat and defrost system is essential for driver safety and comfort. If it's 40 degrees outside, just ...

Few things are as alarming as seeing the temperature gauge climb into the red zone or watching steam billow from under the ...