Thread: coolant elbow broken, will not come out.

I'm replacing the coolant elbows. As expected, 2 ends broke. I'm trying to get it out with a little screwdriver but having little success.

Any ideas on how to get them out? they seem seized in there and are not budging. using the screwdriver seems like its just scraping it little by little.

Hoping there's something I can do it.. Like heat it up with something, or spray something that will eat it up or something.

Any ideas, suggestions, or anything will be appreciated. thanks.