Date: Wed, 27 Jun 2007 18:12:18 -0400
From: Steve B. <>
Subject: Re: strange noise in dash when turning

On Wed, 27 Jun 2007 20:35:26 GMT, "mdb" <> wrote: >I have a 97 9000 Aero and have recently noticed a new noise. I'm wondering >if it might be indicative of a low level of freon in the ac system. It >happens when I turn hard, to the right or left, while the car is moving. >There is a squeaking, whooshing sound. Almost like liquid shifting from one >side to another. I suspected the cabin temp sensor so removed that last >weekend and cleaned it. As a further test, I stuck a small shaft into the >cabin temp sensor to stop that fan. Still got the noise when turning the >car. Less noticeable on gentler turns. No strange sounds at all when driving >straight ahead or hard stopping. > >Any ideas what I might be hearing. > >Thanks. > >Michael > The refrigerant in the a/c system won't make noise when you turn corners. It is a gas under pressure and doesn't really move around because of turning forces. You might be close to the culprit though.. Sometimes the condensate drain for the a/c system clogs up and the plenum starts to fill with water. I had an old Cadi that would dump about a gallon of ice water on your feet during a turn when it clogged. After a couple of times of this happening I learned to keep that drain clear! I don't know exactly where the drain is on your hose but it should be coming out the passenger side firewall area. Steve B.

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