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Wheel bearings failure/noise, how to identify correctly?


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I got some extensive noise coming from my wheels, which grew to the point of making the drive really uncomfortable past 65 mph. I also get some buzz vibration along with that that makes a lot of other things in the car resonate.

 

Car is 05 GT, has 145K on it and the bearings are original. I suspect that the noise was there for a long time now but I always thought it was due to my aftermarket DP and some aggressive alignment. Now it has grown to a point where I can clearly distinguish between wheel noise and DP, and when I switch to neutral and let the car coast with engine idling the noise is still there.

 

I swapped the tires (changed to winter set with 1 year old tires on it) to exclude noise from worn summers. Got the alignment done once again, think it should be fine as the car rolls straight without pulling left or right. Noise is still there. I have offset WL LCA bushings installed but again the alignment was done and the WLs are on the car for couple of years now and the noise is relatively new and growing louder. Feels like most of the noise is coming from the front but there is some also coming from rear left wheel as well. Also, the noise from left front gets louder when there is a load on it (say when car makes right turn at speed), and gets less loud when load is removed (making left turn at speed).

 

The question is, how can I test the bearings without going to the dealer? I don't have a lift but have jack stands and couple of jacks.

 

Any help/info is really appreciated. It's not a small job to replace these and the parts are not cheap so I'd rather diagnose it correctly before I attempt to replace the bearings.

2005 LGT Wagon Limited 6 MT RBP Stage 2 - 248K

2007 B9 Tribeca Limited DGM - 258K

SOLD - 2005 OB Limited 5 MT Silver - 245K

SOLD - 2010 OB 6 MT Silver - 205K

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When mine went I couldn't tell by pulling on the wheels. It just made a chopping noise around turns and when the mechanic pulled it off he said it spun too freely.

 

Same here. I had no way of telling for sure until I had replaced the part. My symptom was a growling or roaring type noise on left turns.

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We've installs 100s of bearings on legacies. There is no physical way to tell if they are shot like the old shake the wheel test back in the day. We've found on these new bolt in style ones the noise is usually the tell-tale way to know. With 145k miles on your car and never having done the bearings count your blessings. Here in the NY/NJ area they are a wear item at around 100k miles.

 

-mike

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Btw, Mike, how much are you charging for a bearing replacement, labor wise? Dealer wants $200 per corner for labor only.

2005 LGT Wagon Limited 6 MT RBP Stage 2 - 248K

2007 B9 Tribeca Limited DGM - 258K

SOLD - 2005 OB Limited 5 MT Silver - 245K

SOLD - 2010 OB 6 MT Silver - 205K

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We charge $305 for the parts and labor together. Labor alone probably in the 1-2hr range so you are looking at 95-190 depending on how long it takes.

 

http://azpinstalls.com/web/index.php/services/repairs/suspensions

 

$40 is dirt cheap for anything on a car, that's less than 1/2hr worth of labor charges.

 

-Mike Paisan

 

http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg

11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts.

Now we have an Online Catalog where you can purchase Parts! AZPParts.com

Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) |AIM: AZP Installs

"Race Tested, Enthusiast Approved!"

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If you're handy, you can do it yourself.

 

I did both my rears, after the first one (in a parking lot at a track in about an hour) I did the second one in about 30 minutes. It's a pretty straightforward deal.

I could suck start a snow blower.
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If you're handy, you can do it yourself.

 

I did both my rears, after the first one (in a parking lot at a track in about an hour) I did the second one in about 30 minutes. It's a pretty straightforward deal.

 

Yeah, sometimes they come right out, sometimes here in the Northeast they are rusted and it takes a bit more to get em out.

 

-Mike Paisan

 

http://www.pbase.com/paisan/image/91072632.jpg http://www.pbase.com/paisan/image/145749898/original.jpg http://www.pbase.com/paisan/image/133406601.jpg http://www.whiteline.com.au/images/logos/perf1.jpg

11+ Years Maintaining, Modifying and Educating TriState Subaru Enthusiasts.

Now we have an Online Catalog where you can purchase Parts! AZPParts.com

Like us on Facebook! | E-mail: sales@azpinstalls.com | 725 Fairfield Ave | Kenilworth, NJ 07033 | 908.248.AZP1 (2971) |AIM: AZP Installs

"Race Tested, Enthusiast Approved!"

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