If your radiator's are feeling cold, here's when you can tackle the problem yourself and when you need a professional ...

I think it’s a small problem but I’ve never had it before. It’s an old radiator and the air valve won’t screw in at all. Nothing wrong with the valve. I’m assuming the thread is shot. What can be done ...

Before cleaning, make sure the radiator is cool to avoid burns. For car radiators, park the car on a flat surface and allow ...