Need ideas to diagnose noise problem.

Hi All,

I am planning to get my 2005 Legacy checked out at dealer. I purchased the vehicle in summer 2007. I have been hearing a really annoying noise from the rear (probably tires) when I was turning into a right curve at about 20mph (no brake applied) for almost a year. The noise almost like the tires are rolling over many equal spacing bumps. The noise is gone when I accelerate. I also experience some vibration from the steering wheel and similar noise from rear when I was cruising on highway at above 60 mph. The unwanted noise and vibration really annoys me. When I go to dealer, what should I ask to check? Where is a better place to diagnose the problem, dealer or body shop? Thanks in advance!

 

Has the noise gotten worse over time, or stayed the same? Also, is it rotational...does it speed up when you speed up and slow down when you slow down?

 

clutch packs in rear lsd?? not sure... I would check your rear diff fluid level if you are somewhat mechanically inclined...

ps.. diagnosing noises over the interwebs is not easy without pics















(yes sarcasm)

 

Have u rotated tires?

 

Just be as descriptive as possible and tell them exactly how to replicate the noise. They will find it.

My guess is wheel bearing.

 

Thanks for all your replies. The way that the noise comes out is rotational. It is hardly noticeable when I speed up but the noise is more noticeable when the vehicle is slowing down to stop. Checking the wheel bearing is good idea since Subaru extend the wheel bearing to 8 year. I have been thinking to balance the tire (not sure if tire rotation is necessary but haven't done it for almost 10 months). Haven't thought about checking rear diff fluid? What do you guys think? Thanks!

 

Its a wheel bearing, INSANELY common. luckily they are a hub assy, bolt a new one on and go!

 

If the unwanted noise is coming out more noticeable in a long right turn, would it mean the rear right wheel bearing worn out? I had the rear wheel bearings checked about 8 months ago by Subaru dealer. They found small noise and replace the rear right wheel bearing only. The problem is still there. Would you think they didn't do a thorough check? Thanks!

 

I had this problem in my 96 Ford full size van. For me...it turned out to be the tire.

 

I'm hopping on the wheel bearing wagon

 

It turned out to be the tire. One of them is out of round.

 

typically it will make noise on the bearing that you put under load... so using your example, it would be putting pressure on the left bearings on a right hand turn....

glad you got it sorted

 

bearing..

 

Post whore.