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 ...

If you haven’t figured it out yet, we’re about to cover the replacement of a heater core. Our subject is a ’89 Jeep MJ Comanche, but the steps are basically the same for an XJ Cherokee of similar ...

Of course, it goes without saying that all of us hot rod guys are tough as nails, and don't require any wimpy, comfort amenities in our cars. It's just that our wives ...

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 ...