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Old 09-10-2001, 08:59 PM   #1
Scooby Newbie
Member#: 9511
Join Date: Aug 2001
Chapter/Region: NESIC
2000 Impreza 2.5RS
Silverthorne Metallic

Question Question for all you tech guys/gals out there (kinda long, sorry)

Figured I would ask all the locals before going too far with this.

Lately my MY00 Impreza 2.5 RS has been making a strange noise from the rear of the vehicle. It is making a whining/whiring/rumbling sound at speeds above 30 MPH. The sound reminds me of an improperly set up rearend on a rear wheel drive car. The sound is independent of whether or not the car is in gear and also independent of if the car is running or not. The sound also could be described as the sound a 4X4 makes driving on the highway with off-road tires on it but not at that high of a volume.

The question is, has anyone heard of this type of problem and if not which dealership does everyone recommend taking the car to for warranty work. I am sure the responses will be for Exeter but I live a little far from there and wonder if they have loaner cars available.

A couple things I thought about being the source of the noise. Let me know if they sound reasonable or if I am a blithering idiot.
1)Bad wheel bearing
2)Bad tire
3)Bad diffferential

Thank you in advance for any suggestions/feedback

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Old 09-10-2001, 09:03 PM   #2
Scooby Specialist
Member#: 80
Join Date: Jul 1999

It's easy to check if it's a bad wheel bearing. Just jack up the rear end and pull/yank on one side of the wheel hard. If it exhibits any free play, you've got a bearing problem.

A bad tire/imbalanced rim can also cause similar symptoms, but that usually needs a trip to the tire shop to find out for sure.

I doubt it's a rear diff - those things are practically bulletproof.

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Old 09-10-2001, 09:06 PM   #3
NASIOC Supporter
Member#: 437
Join Date: Oct 1999
Chapter/Region: NESIC
Location: Londonderry, NH
'91 Miata MX5 (Red)
'09 Impreza OBS (Blk/Gry)


I'd bet money on it being a defective wheel bearing. Any good dealer should be able to cover it, if it is the problem. I believe there are service bullitens on them, but no offical "recall". My friend greg with a '00 is on Wheel Bearing No 4, all covered.

I would say bring it to Exeter Subaru (of course) or Milford Subaru. You can PM Fitz for a contect there. I met one of the tech guys the other night, and he was real cool and very knowledgeable.

Exeter does have loaner cars available if the appointment is scheduled far enough in advance.

Paul G.
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Old 09-10-2001, 11:24 PM   #4
Scooby Specialist
Member#: 3348
Join Date: Dec 2000
Chapter/Region: NESIC
Location: Injun Country
2013 Polo TSi


I agree that it could be the weel bearing...
I see Edwin's track tech is paying off...
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Old 09-11-2001, 08:43 AM   #5
Zen 2.5
Scooby Newbie
Member#: 6861
Join Date: May 2001
Location: Howell, MI
2000 North American
Black Tailed 2.5RS


It's probably the bearing if the noise or the frequency of the noise increases with speed. I just had my drivers side replaced, mine started making noise on the way home from the Maine Rally. It will take the dealer about 3 hrs to replace it.

Chris Z.
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Old 09-11-2001, 09:13 AM   #6
Scooby Guru
Member#: 248
Join Date: Sep 1999
Chapter/Region: NESIC

Well there is more to a bearing than play. A bearing could be bad and just be making noise, depends on how many of the balls are messed up. Some balls could have a flat side, and just make noise with no play, or they can be completely obliterated, and that's when you have play. Sorry to get all technical on you.

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