|
|
|
|
Thread Tools | Display Modes |
03-16-2008, 08:50 PM | #1 |
Scooby Specialist
Member#: 102895
Join Date: Dec 2005
Chapter/Region:
MAIC
Location: Pittsburgh
Vehicle:'12 Forester '17 Outback |
Rear diff or wheel bearing?
My '99 Forester has a rear-end humming noise, almost like worn sticky tires, directly related to speed. At 40mph it becomes audible, at 60mph it's fairly loud. Weird thing is, I just drove the car last week and the noise was not pronounced enough to notice.
Since it's Sunday the only people willing to look at it was Sears, and they say it's not the wheel bearings, it's the rear differential. The only evidence against their theory is: when you put it in neutral at speed (it's an auto), the noise stays. 1999 Forester, 113,400 miles, never had wheel bearing or diff issue. Anybody with stories of how their dead wheel bearing or diff sounded greatly appreciated.
* Registered users of the site do not see these ads.
|
03-16-2008, 09:40 PM | #2 |
Scooby Newbie
Member#: 173384
Join Date: Mar 2008
|
Im sure it is the wheel bearing(very common)
|
03-16-2008, 11:23 PM | #3 |
Scooby Specialist
Member#: 131183
Join Date: Nov 2006
Chapter/Region:
Tri-State
Vehicle:05 STI CGM |
Bump for it being the wheel bearing, try driving and swerving left to right and see if the sound goes away if its a wheel bearing the sound should go away when the weight is transfered off the side thats bad..
|
03-17-2008, 08:01 AM | #4 |
Scooby Specialist
Member#: 102895
Join Date: Dec 2005
Chapter/Region:
MAIC
Location: Pittsburgh
Vehicle:'12 Forester '17 Outback |
It's going in tomorrow to my dealer. Service manager is a great guy, even told me if if it is the diff (which he doesn't think so), we can get a good one from a yard for cheap ($100) because there is not much demand.
They do use the Legacy bearings (for several years) now for all replacements. Charge is $300. Illsti, thanks for the tip. I'll try it on the way there to pinpoint the bad one. |
03-17-2008, 08:54 AM | #5 |
Scooby Newbie
Member#: 171713
Join Date: Feb 2008
Chapter/Region:
NESIC
Location: Troy, NY
Vehicle:2000 Impreza 2.5RS Silverthorn Metalic |
That gen Subaru Wheel Bearings are the biggest pieces of junk I have ever seen. I've replaced all 4 in my 00RS. Stupid Subaru refuses to admit they messed up and issue a recall, oh well.
|
03-17-2008, 12:40 PM | #6 |
Scooby Specialist
Member#: 41070
Join Date: Aug 2003
Location: Arizona
Vehicle:2005 Black Tiger (Black Turbo Baja) |
Yep, almost certainly NOT the diff. Sounds like you have a good svc dep't at your dealer!
|
03-17-2008, 10:51 PM | #7 | |
Scooby Specialist
Member#: 102895
Join Date: Dec 2005
Chapter/Region:
MAIC
Location: Pittsburgh
Vehicle:'12 Forester '17 Outback |
Quote:
The Toyota dealer in the area does not think this approach is necessary. Semi-non update: When I was under the car checking the diff/axles I noticed that the left rear tire is worn on the inside. It got this way (mostly) up on the front right, but was rotated to the left rear a few months ago (Sam's Club, they also re-balanced). The tires are BFGoodrich Touring T/A's, not a sticky noisy tire, actually quite hard. 6 to 7/32's left everywhere else. Could it be the tire? |
|
03-17-2008, 11:31 PM | #8 |
Scooby Specialist
Member#: 41070
Join Date: Aug 2003
Location: Arizona
Vehicle:2005 Black Tiger (Black Turbo Baja) |
Yes, it could be. Can you describe the noise a little more? For example, we have a cyclical noise in one of our vehicles. It sounds like regular road noise but there is a cyclical nature to it that varies with vehicle speed. It's the tires, which get worn badly on the inside edge due to toe issues (in combination with camber) in the almost-non-adjustable rear.
Only one of your tires is worn strangely? If so, you need an alignment. Still, the wheel bearings are a weak spot on those so don't discount a bearing yet. |
03-17-2008, 11:52 PM | #9 | |
Scooby Specialist
Member#: 102895
Join Date: Dec 2005
Chapter/Region:
MAIC
Location: Pittsburgh
Vehicle:'12 Forester '17 Outback |
Quote:
The first thing I thought was "it's a tire", and checked for a flat. Remember, the noise was not there a week ago. When I drove it yesterday (and immediately heard it), I took it to people who do tires all day (the only people open), Sears. They did drive/check the car and told me it's not the tires (or wheel bearing ), it's the differential. And about the alignment: I agree. The tire was not looking this bad before the rotation, but it must have cupped the edge and now it has worn off. I was hoping to get alignment + tires in a few months when my wife was out of school before next winter. |
|
03-18-2008, 12:03 PM | #10 |
Scooby Specialist
Member#: 41070
Join Date: Aug 2003
Location: Arizona
Vehicle:2005 Black Tiger (Black Turbo Baja) |
Well, many things are possibilities. If the noise appeared dramatically after a rotation it may be either thing. I wouldn't write off either the wheel bearing or the tire at this point. Your dealer sounds straight-up enough to diagnose and repair appropriately. Let us know what it ends up being?
|
03-18-2008, 03:51 PM | #11 | |
Scooby Specialist
Member#: 102895
Join Date: Dec 2005
Chapter/Region:
MAIC
Location: Pittsburgh
Vehicle:'12 Forester '17 Outback |
Quote:
I feel the same way, reply a few times to someone's problem and then they (seemingly) fall off the face of the earth, and you (and everyone else) will never know what really happened. But I'm like you (I think...), I actually come back and post the solution. It was the left rear wheel bearing, they just called. It's not all bad, got to see the new '09 Forester and a STI laden '08 FSXT in DGM at the dealer...nice cars. Thanks for the replies! |
|
03-18-2008, 06:30 PM | #12 |
Scooby Specialist
Member#: 41070
Join Date: Aug 2003
Location: Arizona
Vehicle:2005 Black Tiger (Black Turbo Baja) |
Cool! Thanks for the follow-up, surowrxa. Glad you got it fixed.
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
diff or wheel bearing problem | rendog24 | Transmission (AT/MT) & Driveline | 18 | 12-06-2008 12:19 AM |
signs of a bad rear diff/or lash/bad rear axle? | bren wrx | Transmission (AT/MT) & Driveline | 1 | 04-27-2006 02:55 PM |
Scraping noise: Bad brakes or wheel bearings or what? (Outback - pics - rotor color) | Siper2 | Brakes, Steering & Suspension | 21 | 03-09-2006 08:55 AM |
Left Rear Noise CV joint or wheel bearing? | RickV | Newbies & FAQs | 3 | 11-12-2005 07:52 AM |
changing rear axel and wheel bearings | awd=OWNAGE | Transmission (AT/MT) & Driveline | 2 | 02-07-2005 12:09 AM |