Hi David,  If you are referring to the vents at the lower rear of the
passenger and driver doors,  look carefully at the seal at the front
of each door.  If the seal protrudes a bit like it does on the 1989s
then having that vent wont help as the air path is blocked.    I often
thought of running the AC ducting from waaay back there to that
ducting that exhausts at the door (if you have the slider vent).  No
such luck tho.

Pensionerd.

On Sat, Sep 25, 2010 at 12:01 PM, David Beierl <dbeierl@attglobal.net> wrote:
> At 08:28 AM 9/25/2010 �-0400, Edward Maglott wrote:
>>
>> of the van. �I have driven with the skylight open and quite a bit of
>> air seems to come in there when the front windows are open, despite
>> its rear facing orientation.
>
> The skylight seems to be in a neutral pressure area -- it will suck
> or blow equally well depending on other conditions.
>
>
>> The back area of the van seems to get very little airflow and gets
>> hotter and hotter, especially on a sunny day.
>
> The fresh air vents over the door side (bottom lever on the heater
> panel) may help a little. �The rear heater fan can stir things up
> some and help even out the temps.
>
>> �I've thought about
>> getting the late model rear side windows with the vents to upgrade my
>> 86 which has the front door vents. �Do those rear window vents make a
>> big difference?
>
> Judging from a tech bulletin VW put out, they're not as good. �The
> bulletin referred to fixes for whistling noises from cabin air
> escaping through the side window seals etc. either when moving or
> when stopped with the blower running. �I'm distinctly tempted to get
> a set of sliders for the door vents on my '89
>
> With the '86 you can still open the quarter windows wide to get a
> strong blast of air (and bugs maybe) directly on the front-seat occupants.
>
> Some people have made up a false window with a 4" PVC pipe elbow in
> it. �A second elbow and maybe a bug screen would direct the air aft.
>
> Yours,
> David
>