Whirring sound upon deceleration?

2013 SUBARU OUTBACK
150,000 MILES • 2.4L • 4WD • MANUAL
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SUBOUT
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Whirring sound upon deceleration when in gear or neutral. Differential fluid has been flushed and changed. Could it be a gear within the differential, and if so what could I expect to spend to replace it. I am in Canada. Thanks
Jun 22, 2026 at 2:17 AM
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STRAILER
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Hello,

Can I ask if the noise is coming from the front? I would look at the tire tread for cupping/scalloped. Also, I have seen the bearing hubs go out and cause this noise as well. Here is a guide to help us find out what the problem is

https://www.2carpros.com/articles/7-common-symptoms-of-a-bad-automotive-bearing-hub/

Can you please shoot a quick video with your phone so I can hear the noise? that way I can tell for sure what's going on. You can upload it here with your response. We need to hear the noise so we know which direction to go to help you fix the car. Strailer
Jun 22, 2026 at 4:12 PM
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