I never ended up fixing it, as I'm replacing that window with a slider
I bought on German eBay.

That said, if I was going to attempt it I'd pull the window and put a
new bead of silicone between the window and the vent thing.

Of course your leak could be from an entirely different source.

Chris

On 11/13/06, Max Wellhouse <maxjoyce@ipa.net> wrote:
> Dr. Chris:  What did it take to fix the drip?
>
> I guess I better check the passenger side too!!
>
> thanks
>
> Max
>
> At 08:13 AM 11/13/2006, you wrote:
>
> >I have the same issue on the passenger side of my van. I think the
> >water is coming from the gap between the rear side window glass and
> >the black sponge and plastic vent part at the rear. In a heavy rain I
> >can see a bead of water on top of the window seal, then it drips
> >down...
> >
> >Chris
> >
> >On 11/13/06, Max Wellhouse <maxjoyce@ipa.net> wrote:
> >>Listees and Gurus alike:
> >>
> >>I'm in the final phase of PORing some rust issues(not REAL serious
> >>rust) in the 90GL and thought I had solved a water seepage problem
> >>only to find more wet last night in the same places.  The locations
> >>are in the driver's side body panel just before the rear seat and the
> >>floor board adjacent to it ie under the rear seat cushion just in
> >>front of the ECU mounting.  The "new water" in there is not rear
> >>heater coolant, but has assimilated its way in within the last week
> >>or so since I had the floor matting and jute-type insulation removed
> >>and returned to its original location.  I don't want to put the rear
> >>body trim panels back in or the rear seat until this issue is solved.
> >>
> >>1.  The water has primarily collected in that 9-11" "well" before the
> >>wheel well begins its arch upward(maybe 1-2 oz), although putting in
> >>dry fiberglass insulation back in the panel in front of it a week
> >>ago, the bottom inch of insulation was wet for a good 2' forward of
> >>the body seam, but wetter back by the seam and tapering off the
> >>further forward you went.  The well holding the 1-2 oz puddle had no
> >>insulation in it
> >>
> >>2. Since the top piece of fiberglass was not wet and the top section
> >>of the bottom piece that was wet were dry, I'm assuming this didn't
> >>come from leaky window glass gaskets.
> >>
> >>3.  I have shined a 300W halogen work light up and down the exterior
> >>of the van and looked for light coming inside the van after dark to
> >>find no light making its way into the cavities.
> >>
> >>4.  There is an external  round rubber plug in the driver's side rear
> >>wheel well that appears to be solidly in there, but would be exposed
> >>to spray off the left rear tire I guess.  There is an oval  rubber
> >>plug  visible from under the van along the transition seam from the
> >>horizontal to vertical panels that also appears to be well fitting
> >>and not leaky and it appears that there's no water coming in from the
> >>panels further to the rear on top of the wheel well.
> >>
> >>5.  My next step after drying out the affected area will be to go to
> >>the car wash and force high pressure water throughout the area and
> >>see if that gives any clue.
> >>
> >>Anybody got any ideas on tracking this down or where the leak(s)
> >>might be coming from?
> >>
> >>TIA
> >>
> >>DM&FS
> >>
> >>
> >>--
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> >
> >
> >
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>
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>
>