I HEAR WATER GUSHING AROUND FROM THE DASH AREA NEAR THE GLOVE BOX?
Could be an air pocket in your heater core or low coolant level. If your A/C drain was plugged the floor would be getting wet on the passenger side.
I think its water in the doors. The drains at bottom of door get plugged with rust. Move the bottom door gasket back and forth and I bet water drains out
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