Hello everyone. I have found some very similar questions to this one but have not found any real answers. After it rains my civic has some substantial water mostly on the driver side floor boards. I also found water in my main relay which has caused the car to stop starting. I think it is odd to see so many posts about the same water problems. Does anyone know where this water is coming from or how it is getting into the car? I do have a sun/moon roof but I checked it for water leakage and it always appears dry. Thanks

Since your main relay is located left of the fuse box, wedged against the left kick panel and above the hood latch, I suspect your door gasket is shot. Twice a year, I take silicone spray and go over all door and truck gaskets to prevent this sort of problem.