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mine does if any dash vents closed +
Posted by Aero'ed (more from Aero'ed) on Mon, 8 Jul 2002 08:43:40
In Reply to: Whistling noise from ventilation fan when at max......, davec, Sun, 7 Jul 2002 23:18:52
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Try opening all of the dash vents, it shouldn't be there then. Unfortunately, it is present if any are closed and fan on high.
Yesterday I had weird noise generated from ACC. With the family, had just left resturant, headed down road doing 45-50 mph. A/C on high trying to cool car down.
This pulsating sound began, like a helicopter landing on us. Shut off ACC, it stops. Son had his rear window fully open. Closed window, turned ACC back on, pulsating gone.
I guessing that the open window at that speed caused slight negative pressure in cabin and combined with the recirc (for initial cooldown), air was being delivered in "chunks" instead of smooth constant flow. I'll have to throw this one at a fan rep next time I get one's ear, (unless I can find something in my ASHRAE Handbook).
Ed 2002 Aero SW Fort Wayne, IN
posted by 66.84.139...
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