Can a motor run with missing freeze plug?

A freeze plug, also known as a core plug or expansion plug, is a small metal plug that is used to seal a hole in the engine block of an internal combustion engine. Freeze plugs are designed to prevent the engine block from cracking in the event that the coolant freezes and expands.

While it is possible for a motor to run with a missing freeze plug, it is not recommended. A missing freeze plug can allow the engine coolant to leak, which can cause the engine to overheat. Overheating can damage the engine, resulting in costly repairs or replacements.

Additionally, a missing freeze plug can also allow dirt and debris to enter the engine, which can cause damage to the engine's internal components.

Therefore, it is important to ensure that all freeze plugs are in place and in good condition before operating an engine. If a freeze plug is missing or damaged, it should be replaced immediately.