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Old 01-31-2012, 02:03 AM   #1
Jubert39
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Default Wheel bearing sound?

So I noticed a weird sound from my car the past few days. Did a quick search and saw that most of the comments about wheel bearings going bad is that they have a "rythmic thumping."

What I am hearing from my car is... A kind of scratching noise, almost like if you were rubbing from having a car thats dropped to low. It only occurs when I do a right turn. Never any other time, and the sound is coming from the rear, from the drivers side (i think).

My car is not dropped very low. Its on tein H-techs on stock struts. The car has over 150K on it. 2004 wrx.
Would this be consistent with a diagnosis of a bad bearing?

Sorry for the limited details, but thats about all the info I can give.
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Old 01-31-2012, 02:39 AM   #2
OrbitalEllipses
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Could be. Symptoms sound right, age is right, but suspension stuff like that you could throw hundreds at and not solve it.

Scratching or metallic scraping?
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Old 01-31-2012, 02:43 AM   #3
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Yea more or less... Its hard to describe the sound, but it sounds like rubbing or scratching. Not really high pitched or anything. And no vibrations....
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Old 01-31-2012, 02:48 AM   #4
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Do a brake job anytime recently? I know there's a known issue with the inner lip of rotors, on occasion. A metallic scraping that only happens when turning in a specific direction WOULD indicate a wheel bearing on the opposite side going bad.

I understand the 12-6 O'clock test isn't very scientific, but you could try that. Like I said though, it's easy to throw money at it and not get it right.
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Old 01-31-2012, 03:07 AM   #5
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I had that in my bugeye last year. I was playing around on a flooded street (4-6inches of water) and had entirely too much speed entering a 90degree turn. Hydroplaned into the curb. Rim checked left side, no other damage. It started as a low grinding, then got worse until it started squeaking. I bought the hub assembly and I payed my buddy to put a fresh one in as he had the time. Took less than an hour, I think. If you have a way to press it out, you can just buy the bearing.

An easy way to tell is to jack-up the wheel that is making noise--make sure it is clear off the ground. Now when you are facing the wheel broadside (the lug nuts are facing the center of your chest) put one hand on the left side of the wheel and the other hand on the right. Now, try to see if you can get the wheel to rattle/shimmy back and forth. You accomplish this by pushing/pulling slightly on alternate sides. You are looking for any play in the wheel itself. If it rattles or has a fair amount of play toe in and toe out movements, then just replace the bearing and you should be fine. Also inspect the cv joints and tie rod ends to make sure that whatever caused the bearing to start failing didn't lead to more failures down the line. A squeaking might be coming from worn break pads, but nasioc members I will give more credit than that.

Did you hit anything or do a ton of off-roading?
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Old 01-31-2012, 03:11 AM   #6
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Ok thanks guys. Fyi- i did not hit anything recently. I also have not done any brakes recently. An my pads are still good, replaced them a year ago. But yea... I just wanna make sure that if its the bearing- i get it replaced asap before it gets worse. If it does get worse, can it cause other damagr? Thanks in advance
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Old 01-31-2012, 03:29 AM   #7
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Think about your bearing like your ankle. If your ankle is not working right or if you are experiencing pain you will most likely end up having problems in your knees, hips and spine due to improper weight distribution. You could mess up your ball joints and suspension components so yes it is possible over time you could seriously F some stuff up, not to mention wear your tires out prematurely and unevenly. Also the longer you go without it being fixed the more pronounced and obnoxious the sound gets.

I've subscribed to your thread so lmk how everything goes I hope it's nothing serious.
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Old 01-31-2012, 03:32 AM   #8
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Quote:
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Think about your bearing like your ankle. If your ankle is not working right or if you are experiencing pain you will most likely end up having problems in your knees, hips and spine due to improper weight distribution. You could mess up your ball joints and suspension components so yes it is possible over time you could seriously F some stuff up, not to mention wear your tires out prematurely and unevenly. Also the longer you go without it being fixed the more pronounced and obnoxious the sound gets.

I've subscribed to your thread so lmk how everything goes I hope it's nothing serious.
Okay great thanks, its very minor right now... Ill have one of my mechanic friends check it out.
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Old 01-31-2012, 03:35 AM   #9
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Cool bud good luck
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Old 01-31-2012, 04:12 AM   #10
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If it doesn't sound like marbles, you're fine. If it sounds like marbles, ****ing fix it! It will progressively get worse, I wouldn't anticipate sudden deterioration. From what I understand though, a badly worn bearing will trash the hub as well.
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Old 01-31-2012, 11:56 AM   #11
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Well It doesnt sound like marbles at all.
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Old 01-31-2012, 11:11 PM   #12
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Wheel bearings on these cars have a ridiculously wide range of sounds. If there are not any signs of anything physically scraping in the rear, my best guess would be a toasted bearing. If you get them earlier enough they usually won't damage the hubs.
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Old 02-01-2012, 09:39 PM   #13
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I have the same problem with my car, Except that its on both sides and only comes out when making aggressive turns. If I turn hard left the sound seems to come from the R front, and vice versa. I think that it could be the wheel bearings just starting to go. My car is a 2006 STI with about 84K on it. It makes a wierd metallic scraping type sound.

Others have suggested the dust shields behind the rotor could rub and
make the sound. I would check that first. In my case I pulled the rotors and looked and there is no sign of contact anywhere. I also tried to see if any play in the wheel when in the air ( a classic wheel bearing test) and nothing, but I think that it jsut may be starting to go and only coming out when I subject the hubs to some significant force.

If you do replace your wheel bearings, post an update and let us know if it fixes it. (Also if possible maybe a link to a sound/video clip would be good so others know what you exactly are experiencing).
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Old 07-31-2012, 12:53 PM   #14
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Hopefully it's not a problem to bump this up, I'm having the EXACT same issue as the first post by the OP. Only difference is I installed new rotors and pads about 2 months ago. But I didn't start hearing the grinding/scratching until the last couple weeks, only from the driver's side rear, only while turning sharp to the right.

Going jack up the rear and see if there's any play in the wheel bearing, and also check the rotor dust shield
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Old 04-19-2013, 12:20 PM   #15
Jubert39
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SO its been over a year. (I actually bought a daily and drove that so my WRX was just sitting in the driveway not being driven). Of course still have the problems. For those who say you had similar problems, did you guys get it fixed? Was it the bearing? thanks!
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Old 04-23-2013, 01:03 AM   #16
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Yes it was the bearing.
Sorry to hear your problem still exists.
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Old 04-23-2013, 01:28 AM   #17
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When my bearing went bad it was alot louder.
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Old 04-23-2013, 10:29 AM   #18
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I was skiing this season and while parking some mud or grime got into my front bearing causing it to make a horrible sound.

My friend and I blasted some silicone grease into it which did a nice job. Not saying this is guarantee fix but it was a nice temporary fix since I was not able to get access to good labor or parts.
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Old 04-24-2013, 07:36 AM   #19
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Quote:
Originally Posted by JavaBot View Post
I was skiing this season and while parking some mud or grime got into my front bearing causing it to make a horrible sound.
NO....NO IT DIDNT ...impossible....and the rest???

you likely had some ice in the dust shield and did dumb things not knowing what you were doing
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Old 04-25-2013, 09:38 AM   #20
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Ha yea I probably don't how to drive or ski.

Care to elaborate or just punctuate poorly?

I doubt it was ice because it was warm and muddy in the parking lot and I wasn't doing anything other than parking.

On the way home it was making a sound congruent to how fast I was going but was not related to engine speed so I thought it was f r wheel bearing we jacked up that side turned the wheel and it was still making that's sound. Shot some grease through and bye bye sound.
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