Cold-weather riding comes down to one question: how does the heat get into your lap? There are four honest answers, and each fits a different kind of rig. A coolant-loop heater pulls hot coolant off ...

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 ...

As winter sets in and temperatures drop, a functioning heater becomes a necessity. But what if, instead of warm comfort, your heater blows icy air through the vents, or fails to work altogether? It's ...

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 ...