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Old 09-19-2012, 01:01 AM   #1
Scooby Newbie
Member#: 327688
Join Date: Jul 2012
Chapter/Region: RMIC
Location: Sandy, Utah
2004 Subaru WRX

Default Humming in my LGT

I have had an odd humming in my 06 LGT recently and the last few days it has gotten worse. Its a very consistent humm that gets a little louder the faster I go. (no humm at idle)
I've wondered if its a bearing or something worse. Any ideas???
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Old 09-19-2012, 02:28 PM   #2
Patrick Olsen
NASIOC Supporter
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
1997 Legacy 2.5GT
1996 Impreza coupe


Wheel bearing. Try weaving back and forth as you drive down the road - does the sound change?

Tire. Check the air in all your tires - is one of them low? Rotate the tires - does the sound change location?
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Old 09-20-2012, 03:04 AM   #3
Scooby Specialist
Member#: 75078
Join Date: Nov 2004
Chapter/Region: South East
Location: Fayetteville, AR
2000 Legacy GT
Black Granite Pearl


All good points to check in accurately diagnosing the root cause of the problem
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Old 09-20-2012, 01:37 PM   #4
*** Banned ***
Member#: 305000
Join Date: Dec 2011
Chapter/Region: MWSOC
Location: C H I C A G O
2005 Legacy GT 5MT
Bright Silver Metallic


i had this same problem, drove me nuts.

90% likely to be bearings. there was a recall for them to be replaced gratis, but it may've expired.

tires could be contributing. as most tires wear out, they get louder. this really shouldnt be noticeable under 40mph.

other rare possible causes:
- diff oil needs change
- rock or pebble stuck between backside of brake disc and the metal dust shield that sits inside the wheel
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Old 09-20-2012, 04:36 PM   #5
Scooby Newbie
Member#: 332297
Join Date: Sep 2012
Chapter/Region: TXIC
Location: Magnolia
2012 Legacy GT


why would someone NOT want a hummmer in their car
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