2001 Bonnie radiator leak from fitting

[raa1144]

Hi all. I noticed that there seems to be a fitting below the filler neck on the front of the tank of my radiator and water is pouring through it. Was there a plug in there? Possibly the temp sensor? I can't see anything that looks like it belonged in there

[nos4blood70]

Some cars have a coolant level sensor. But none of the 3800 Bonnes got them. I think you must have a replacement radiator and no one put the plug in.