How do I stop a leak in my radiator?

Answer by  Amber40 (24961)

Well there are commercial product available to do this however they are meant to be a temporary fix. Have a mechanic check it out and tell you if a repair is even possible.

Answer by  mammakat (11147)

If this is a car radiator you can use a stop leak for short term, but you will need to have it re-cored. DON'T delay, you can fry your engine. If this is a home steam radiator, please call a plumber, shut it off, and don't mess with it- steam burns are very painful and very dangerous.