The Drive and its partners may earn a commission if you purchase a product through one of our links. Read more.
As summer dissipates through fall and stretches into winter, most drivers aren’t too worried about their car’s heater. It worked last year, and the year before that, why wouldn’t it work this year? Well, fine drivers(G&Gers, Guiders, Garage Gnomes? We’ll pick a name later.), life tends to throw curveballs at you, and guess what, your heater isn’t working properly anymore.
Heaters aren’t the mysterious beast most make them out to be. Heating systems consist of a heater core, a heater fan, the car’s coolant system, and your HVAC controls. As hot coolant is drawn into the heater core, the heater fan, controlled by the HVAC controls, blows that heat into the cabin as the cooled coolant returns back to the system. Though a simple system, a number