Re: Motor sound when A/C is "ON" - Saab 9-5 Bulletin Board - Saabnet.com
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Re: Motor sound when A/C is "ON"
Posted by Jdickman [Email] (more from Jdickman) on Tue, 14 Sep 2004 17:13:46
In Reply to: Motor sound when A/C is "ON", BobSAAB
[Profile/Gallery]
, Tue, 14 Sep 2004 10:42:47
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There is a problem with expansion valves on the 9-5's causing a humm, but not really a "motor" sound. Typically it does it when the car is shut off or just as A/C is started. The noise normally lasts about 10 seconds.
The motor noise you hear may be the motor for the temperature control flap, but that should shut off after 30 seconds or so.
Does the noise still occur with the ECON button on? If so, it may be the fan speed controller. They fail causing a humming noise from the interior fan, but normally only on a few fan speed selections. They are a real bear to replace, and not cheep either.
Good luck,
Jason
posted by 63.255.6...
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