I was flushing out my coolant system and water kept pouring out from 1 inch spout looking piece under this cylinder attached to the passenger firewall (not sure what its called idk if its normal)
it was also a steady stream and would only pour from there when i ran water throught the whole system after flushing out piece by piece

Whats its called
how much is it
and can someone explain how it works for piece of mind please
2002 accord v4 sedan ex

 

You posted on an old thread and a different vehicle, so I made your post a new thread. Can you take a picture of the item that is leaking and post on here? One closeup and one from further away to see the area you are talking about would also help.