General engine noises when A/C is engaged... - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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General engine noises when A/C is engaged...
Posted by JamesD [Email] (more from JamesD) on Sun, 29 May 2005 16:33:28
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I suspect from the posts I've read the a pulley may be to blame but can't be sure. The following noises ONLY occur when A/C is engaged:
1) whistling/high pitched noise at 30mph, 50mph, 60mph.
2) a rubbing noise when turning the steering wheel in parking lot situations
3) a slight grind when the compressor engages (happens occaisionally but only under the follow circumstances: engine warm AND engine speed is below 5mph).
As soon as the compressor is turned off, all the above noises cease. Dealer has inspected and has not been able to identify anything. Belt and pulley replaced 15K miles ago. Compressor replaced last summer.
-97 900SET w/ 62K miles.
posted by 68.198.105...
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