A car heater that blows cold air is extremely annoying, and there are several issues that can cause this problem. Here are ...

RAY: I’d have to disagree with your mechanic. I think flushing it out is worth a try. TOM: The easiest thing to do is to reverse-flush it by hooking a hose up to the heater core and pushing water ...

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: 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 ...

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 ...

Our mechanic states that the heater in our 2000 Ford Focus sedan is clogged. He says there is nothing he can do, since attempts to unclog it by shooting air through it would cause damage to the whole ...

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 ...

Dear Tom and Ray: Our mechanic states that the heater in our 2000 Ford Focus sedan is clogged. He says there is nothing he can do, since attempts to unclog it by shooting air through it would cause ...

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 ...