One of the things I have put on my checklist it to clean--I mean
really clean--the gutter on top of the upper inside lip (under the
hinges, with the lid open), the rubber gasket and the painted lid
surface that seals to the gasket. If any dirt gets on the rubber or
the painted surface, it will leak. The way the dirt gets there is
leaves and stuff building up in the gutter.

As has been stated, if the window seal is not OK, you will get water
in, but water on the decklid and wet mattress sounds more like the
door seal is dirty.

Jim

On Mon, Mar 1, 2010 at 3:13 PM, Dave Mcneely <mcneely4@cox.net> wrote:
> Doug, I suspect that the rear hatch gasket is not fine. �But, I would close everything up tight, and take a water hose to the back end of the van, moving systematically over the entire thing. �I would watch inside as I did so, looking for any water entering. �I'd hope I'd find the leak. �David Mc
>
> ---- Doug Fayne <vanagon@ASTOUND.NET> wrote:
>> I just opened up the back of my 89 vanagon gl
>> to find the rear cushion is wet on the bottom as well as the
>> carpet pad over the engine lid.
>>
>> We have had lots of rain recently.
>>
>> How is the water getting into the top area of the engine lid?
>> soaking the carpet and pad?
>>
>> The van is a solid roof gl with no sunroof or pop top.
>> Rear hatch gasket seems to be fine
>>
>> how could the rear d pillar windows allow water to get to the engine lid area?
>>
>> Thanks,
>>
>> Doug
>