Good morning.
To be sure, remove the serpentine belt and see if it will turn. If it does, it is an external issue.
If it does not, then I would remove the spark plugs and check again to see if it will turn. If it does, then the cylinders may have water in them. That may be from the upper intake manifold.
If it does not, then it is locked internally from a bearing. That may be progressive damage from the high water issue.
Did you change the oil/filter after the high water?
Roy
SPONSORED LINKS
Thursday, October 4th, 2018 AT 2:41 AM