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02-13-2018, 09:04 AM | #1 |
Scooby Newbie
Member#: 135213
Join Date: Dec 2006
Location: MD
Vehicle:2012 2.0i Sport Prem Silver |
2012 Impreza Sport - Odd Sound
I'm the original owner of my 2012 Impreza Sport (CVT), which currently has 86k on the odo.
I've noticed a sound getting progressively worse. It's a whirring or droning sound coming from the rear of the vehicle (I think it's the passenger side but I can't be sure). It starts to get noticeable at about 35 mph, is very loud from about 50-60 mph, and gets a little bit softer at speeds higher than that, but it's still there. It does not change with pedal pressure. Coasting or not, it's still there. Does anyone have any ideas? Thanks.
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02-13-2018, 09:08 AM | #2 |
Scooby Specialist
Member#: 395955
Join Date: Jul 2014
Chapter/Region:
Tri-State
Location: Bucks County, PA
Vehicle:2021 Mazda 3 Turbo 2017 MX-5 RF Club |
Possible wheel bearing. Does the sound increase in relation to speed or just get louder? Is it a rotational sound?
My other guess would be an axle or diff. But start at the hub/bearing. Maybe check your tires too. Move the tires around on the vehicle and see if the sound is coming from the same area. |
02-13-2018, 09:15 AM | #3 | |
Scooby Newbie
Member#: 135213
Join Date: Dec 2006
Location: MD
Vehicle:2012 2.0i Sport Prem Silver |
Quote:
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02-13-2018, 11:51 AM | #4 |
Scooby Newbie
Member#: 408701
Join Date: Dec 2014
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wonder if the rearmost exhaust flange has loosened up a bit.
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02-14-2018, 04:19 AM | #5 |
Scooby Newbie
Member#: 3409
Join Date: Jan 2001
Chapter/Region:
NWIC
Location: Oly
Vehicle:98 My FMIC Is bigger than yours. |
Most likely a wheel bearing.
Do a bit of swerving back and forth at speed and see if the noise changes in pitch or intensity. If it does, it's a wheel bearing. If it doesn't, it's tire or differential noise most likely. |
02-15-2018, 08:32 AM | #6 |
Scooby Newbie
Member#: 482149
Join Date: Feb 2018
Location: South Jersey
Vehicle:2008 Impreza OBS Silver |
+1 for wheel bearing. When I worked at Subaru, any time a car came in with a whirring noise from any corner that was the first thing they checked. Nine times out of ten it was always the wheel bearing was shot.
If I remember correctly, the rear bearings on the '12s weren't hard to remove. But if you have a lot of rust back there, be ready to bring out the air hammer/slide hammer |
02-15-2018, 04:18 PM | #7 |
Scooby Newbie
Member#: 135213
Join Date: Dec 2006
Location: MD
Vehicle:2012 2.0i Sport Prem Silver |
So it was indeed the wheel bearing (passenger rear).
$604 later, I'm good to go. Ugh. |
02-17-2018, 05:10 PM | #8 |
Scooby Newbie
Member#: 3409
Join Date: Jan 2001
Chapter/Region:
NWIC
Location: Oly
Vehicle:98 My FMIC Is bigger than yours. |
Good stuff.
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