i have a 2000 ssei and when it rains alot my trunk lid retains water then leaks it into my spare tire well..i checked the screws that hold the wing, they look new. i sealed up the taillights and it still leaks..whenever i open the trunk after it rains, water drips from the little holes at the leading edge of the underside of the trunk lid..so while it rains my trunk lid is holding water..thanx 4 any help..

Check all the nuts and make sure they have been rtv silicon-ed properly. There'* 4 holding on the center tail underneath the gray mat on the back of the trunk lid.

Same problem with mine. I took the fin off and sealed the bolt holes up real good with silicone. I also pulled one of the little rubber plugs out so the water would drain out of the trunk. I think they are strike spacers or something but it seemed to cure the problem.

I solved the problem for me by just drilling 2 little holes where those spacer plugs are at the bottom havent had any problems since.

I finally figured mine out, and there is no leak that is not designed into the trunk lid.

When the trunk is closed, the seal is too good. When it rains and the temperature drops several decades of degrees, it creates a vacuum inside the trunk. Now those little rubber plugs at the four corners of the trunk lid are sitting in rain water. They have holes in them. Water is pulled past the rubber plug'* contact with the body through those little holes and into the trunk lid itself, where it can then collect in the pocket at the bottom. When you open the trunk lid, the water spills into the trunk.

Tip: Open the trunk lid just a little bit, and let the water drain out first.

How do I know this? My trunk lid never has any water in it, no matter how hard the rain is, unless the temperature also drops a large amount at the same time.