When your car or truck heater stops blowing warm air, it’s more than just an inconvenience—it can be a safety hazard. From low coolant to clogged heater cores or faulty controls, there are several ...

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.

Dear Car Talk: I have a “no heat” problem on my ‘99 Pontiac Grand Prix SE 3.9 liter. It runs fine with no overheating (yet). I suspect a plugged heater core and want to bypass it for the rest of the ...

DEAR CAR TALK: I have a "no heat" problem on my '99 Pontiac Grand Prix SE 3.9 liter. It runs fine with no overheating (yet). I suspect a plugged heater core and want to bypass it for the rest of the ...

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 ...

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 ...

so If I read this right, your blower is running but the air is cold... right? You could have a clogged heater core, an air pocket trapped in the core, or perhaps your HVAC blend door is stuck.

I have a “no heat” problem on my ‘99 Pontiac Grand Prix SE 3.9 liter. It runs fine with no overheating (yet). I suspect a plugged heater core and want to bypass it for the rest of the summer. Will ...