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 ...

CARS.COM — If steam is pouring from under your hood, a temperature warning light is glowing bright red on your dashboard or the needle in the temperature gauge is cozying up to the High mark, it’s ...