AC problem

[William Ng]

At 12:25 AM 1/6/2003, you wrote:

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>Airflow stops when I accelerate(come on boost). Sounds like
>vacuum valve  getting pressure instead of vacuum?  Is this a one way valve
>malfunction, and if so, where is it located ? Mike Posner.
>--

I had the same symptoms.  I checked my check valve, the vacuum reservoir,
and vacuum lines to the cruise control. None were the culprit.  Turns out
it was the vacuum line to the motor for the fresh air/recirc flap.  The
poorly designed plastic mount had cracked releasing the vacuum motor and
dislodging the vacuum line.

This was the source of the vacuum leak.

I fixed it with 30-lb test nylon wire ties.  The vacuum motor consists of a
rigid half, and a half with the diaphram. These snap together, and at those
locations, there's enough space to create 4 loops. I used stainless steel
guy wire of the appropriate gauge. With 2 wire ties through these loops,
you anchor the motor back in its original position. Simply pull up the
slack around the 2 plastic frame 'beams'.  When done, it's mounted firmly
and permanently in place.

It took about 1/2 hour to do. And given the lack of space in there, it's
much easier than the Audi TSB and kit which requires mounting a metal plate
by drilling into the plastic frame with self tapping screws.

BTW, this method can also apply to re-attaching the spring for the recirc
flap should your's be broken.

HTH,
Will

1990 200q
w/190k miles.
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Regards,
Will
================================================================
William Ng....................................willng at netzero.net
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"Never knock on death's door, ring the doorbell and run away..."
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