A dashboard vent blowing cold air despite the heater being on | Cars.com illustration by Paul Dolan Say your engine is at its normal operating temperature, the heater is turned on, the temperature ...

On cold days, a car that isn’t blowing warm air won’t be pleasant to drive, plus the situation places the driver and their passengers at risk if the windshield fogs up or ices over.

This heater core then passes the hot air it generates into the vehicle with a blower fan. Many different things can go wrong here causing the whole system to work poorly or not at all.

In cold climates, a properly functioning car heating system is essential, not only for creature comfort, but for safety. A malfunctioning heater blowing cold air prevents the defroster from ...

If it does then you need to check the two pipes that go through the bulk head (to the heater matrix). If both are cold then suspect the heater control valve. If one is hot and the other cold then ...

Getting the most out of your car's heater might involve counterintuitive practices, such as turning on the air conditioner to prevent foggy windows. Here are some other tips.