My brother has a 2006 Toyota RAV4 with 125,000 miles, which we think has a clogged heater core. The Toyota maintenance schedule calls for changing the coolant every 100,000 miles, which he has done.

When your car heater core malfunctions or wears out, it seriously threatens the engine if not rapidly repaired. Heater cores use the engine's coolant to heat the air in your car and serve as a heat ...

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 ...

DEAR CAR TALK: My brother has a 2006 Toyota RAV4 with 125,000 miles. We think he has a clogged heater core. The Toyota maintenance schedule calls for changing the coolant every 100,000 miles; he takes ...

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 ...