Why is coolant leaking from the freeze plug?

Coolant leaking from a freeze plug typically indicates corrosion or damage to the plug itself, which can occur due to age, rust, or improper installation. Freeze plugs, also known as expansion plugs, are designed to seal the engine block and prevent coolant from escaping. If they fail, it can lead to coolant loss and potential engine overheating. Regular maintenance and inspections can help identify and address such issues before they lead to more significant engine problems.