You replace them. There is no adequate fix unless they are replace. The old ones have to be knocked out and this takes skill because you dont want them to fall into the block or damage the cylinders. And on most motors, excluding some 4 cylinders the motor has to be removed or engine has to be tilted to replace them. Attempting to do this w/o removing or tilting motor can result in engine damage or just wasted time in failure... and frankly its just a pain in the ass.
Freeze plugs. More likely that hoses are leaking or thermostat housing is leaking. Freeze Plugs generally NEVER leaks unless engine block has had frozen coolant in it. Hence, Freeze Plugs.
There are about 8 freeze plugs which one is leaking?
it is probably your freeze plugs
You will have antifreeze leaking out and dripping on the ground.
rear freeze plugs
cooliant in resvoir tank will be brown
the freeze plugs on the side of the motor could be done.
There are 8 freeze plugs. If you have a bad one it's where the coolant is leaking from the engine block or a cylinder head, .
Freeze plugs were part of the casting process and are generally found on the side of the block below the head. Unless they're leaking, they need no maintenance.
If freeze plugs are leaking on a 1995 Honda Passport, it typically indicates corrosion or a failure of the plugs, which are meant to protect the engine from freezing damage. To address this issue, you’ll need to identify the leaking plugs and replace them, ensuring the engine is cool and drained of coolant. It's advisable to inspect for any underlying rust or damage in the surrounding areas, as this may indicate a more significant issue. Regular maintenance can help prevent similar problems in the future.
If you have a (casting plug) or what is commonly called a (freeze plug) that is leaking the only repair is to replace it.
Core plug - Wikipedia, the free encyclopediaCore plugs, sometimes wrongly called freeze plugs or frost plugs, are plugs that fill the core holes found on internal combustion engines. ...en.wikipedia.org/wiki/Core_plug