Whirring sound when decelerating

Tiny
WALKERMCBAIN
  • MEMBER
  • 2013 SUBARU OUTBACK
  • 4WD
  • AUTOMATIC
  • 104,000 MILES
When I let off the gas or touch the brake a whiring sound begins and sounds like it is winding down. The sound stops when I push the gas again.

What is this?
Sunday, November 8th, 2020 AT 6:06 AM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More then likely this a gear or a bearing in the drivetrain. When you accelerate you are taking the slack out of the gears so it stops making the noise.

Here is a guide that will help with this. You will want to focus on the differential noise in this guide.

https://www.2carpros.com/articles/whirring-sound

Let's run through this and go from there. Thanks
Was this
answer
helpful?
Yes
No
+1
Sunday, November 8th, 2020 AT 6:35 AM
Tiny
WALKERMCBAIN
  • MEMBER
  • 2 POSTS
I was told when I got my oil changed last week that I should get my differential fluid changed as well. Would this solve the problem? Or is it a bigger issue?
Was this
answer
helpful?
Yes
No
+1
Sunday, November 8th, 2020 AT 7:47 AM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
I can't tell you if it will solve the problem or not because if the damage is already done then the new fluid will not stop the noise. However, I would definitely do it because it can't hurt.

Here is the process from the manual.
Was this
answer
helpful?
Yes
No
Sunday, November 8th, 2020 AT 1:55 PM

Please login or register to post a reply.

Sponsored links