What will happen if you plug the weep hole next to the thermatstat housing

Hello, if coolant comes out, it sounds like there could be a remaining seal or gasket or component leak. I know you've replaced components, but weep holes are to show where problems exist to resolve them before they become catastrophic. Plugging the hold is like putting a blindfold on and walking into a wall. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops