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Old 02-26-2008, 04:38 PM   #1
djart
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Default Can someone tell me that this noise is? 02WRX

Hello

I need help. What that humming noise while I drive at highway speeds. I was thinking wheel bearings or timing belt. I Know the T belt is due. I did take off the T Belt cover and all looked good no metal shavings or torn belt ect ect.

http://www.youtube.com/watch?v=6YDR8OG-8YM

1. Owned the car since 29k
2. Just replaced Center diff and rear dif fliuds.
3. Removed all belts and ran down highway off battery and noise still there.
4. Did Ac and Power Steer belt change however broke both adjustment bolts due to Auto zone selling me wrong size belt, too big.
5. 100% Stock other than short shift kit.
6. 105k on the clock. all mant has been completed.

Please take a listen, anyone have this same noise?

http://www.youtube.com/watch?v=6YDR8OG-8YM
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Old 02-26-2008, 08:54 PM   #2
danmezz
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WRB

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My guess would be worn tires or some sort of bearing in the driveline somewhere... If it's a wheel bearing, they like to make a "roaring" noise and change pitch when you turn. CV joints tend to make noise when stopping, turning or accelerating... I'm not sure what sound other bearings in the driveline make though

I have a similar noise to yours that surfaces above 50mph. It has nothing to do with rpm's or gear, but changes pitch with wheel speed and gets louder as speed increases. I thought it could be some sort of bearing or something... I took it to the dealer and they told me it was the tires.

Turns out the previous owner ran it out of alignment long enough to chew up the tires and cup them pretty good... at least that's what happened with me. A good alignment and tire rotation quieted it down quite a bit for me, but the noise is still there a little. I probably should replace the tires, but they still have 70% tread left so I'll just live with them for now and have a bit of fun in the meantime

Last edited by danmezz; 02-26-2008 at 09:02 PM.
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Old 02-26-2008, 10:09 PM   #3
djart
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Many thanks, I do have a tire that is cupped from am earlier bad alignment. Got new tires and then did not get an alignment done is something I should have learned in grade school. However to me it has a worn baring sound to it. I was hoping to find someone who has had the issue so i am ready to face the dealer. I find it best to know as much as you can before you hand over the keys to the dealer. I am thinking i am going to have to make a Dealer visit soon. The last time I went to the local dealer for a AC value repair I pay then go out and pop my hood and find my antifreeze rez gone and a socket with a 10mm socket laying on the inter cooler!!! The service rep was like i don't know how that happed. He was like I will order you the part it will be here in a week! I hate that! Many thanks for the post!!
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Old 02-26-2008, 11:09 PM   #4
RexyGirl
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with mods :)

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Does the noise go with the speed of the vehicle? Can you tell which wheel it is coming from? Try jacking up that side of the vehicle and turning the wheel. The noise won't be loud, but if it is a bearing, you should hear it.
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Old 02-27-2008, 12:08 PM   #5
djart
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I am starting to think tire, but man it sure sounds like metal baring issue.

Im thinking its coming from passenger side. I jacked and tested it for movement. I graped the wheel at the 12 and 6 and tried to get it to go up and down did not move. However it did move about 3 inches in the direction of travel. So there is play there, however i thought there should be some. I could be wrong.

The noise comes on after 60 and if I engage the clutch let the revs fall and the pitch stays the same. However it gets louder when you give it gas. Would giving it gas make the noise get louder. Does the friction change on the tires that much when power is applied.

Could is be the turbo?

Many thanks
Djart
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Old 02-27-2008, 08:24 PM   #6
danmezz
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what you're explaining is sounding more and more like what happened with me. The noise starts at 50 and gets louder the faster the car goes. It also did change pitch when I gave it gas. It also sounded like "metal gears meshing" or some sort of bearing to me as well. Sure enough it was the tires though.

If your front wheels have a lot of play left to right, the tie rods might be worn and that would definitely throw the alignment off, leading to cupping and uneven tire wear.

If you want to experiment before bringing it to the shop, you could rotate the tires. If the noise goes away, sounds different, or sounds like it's coming from a different place, that would mean it's the tires.
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Old 02-28-2008, 11:26 AM   #7
djart
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Swapped the front tires left to right and that did help reduce some tire noise. However I have a nice shake at highway speeds. I expected that because both tires are slightly cupped on the inside.

Something is warn out. However since I have the dash apart to fix ac EVP VALUE as well I can hear better what is going on up front.

I can hear two things.

High pitched whine louder than normal turbo spin. That comes on during aceleration after 55mph. You do hear it loudest when you are on full boost. When off boost the noise lowers by 50%. but still there. I have owned the car for 4 years i know this sound is different.

I can hear a slight gear roar slash grind and deceleration from 10 mph to stop. To me sound like metal on metal ball bearing sound.

I did crawl under the car last night and noticed that the front drivers side half shat or the green round thing just before the trans is covered in grease. the passenger is nice and clean.

I just changed my gear oil and I could not see what the guy put in do to it coming from the bulk tank. He assured me it was the valvaline syn gear oil. I had the mobile 1 in the car however the quick change place would not use it!

I really want to figure this out before I get to the dealer!

Thank you all so much for help so far!!
Djart
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Old 02-28-2008, 09:28 PM   #8
danmezz
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WRB

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hmm, sounds like more than one thing going on at the same time.... the new shake after the tire rotation is almost certainly from a bad alignment wearing the tires improperly. Grease on the half shaft usually isn't a good sign because that means the boot is probably split and the CV joint has dirt in it and is wearing out. If it's not making noise now, it will some time down the road. It could very well be making the noise around 10 mph though but then again maybe not...

some stuff definitely needs to be adjusted and/or replaced in the front-end. sounds like it needs an alignment at a minimum, maybe CV joints, and possibly tie rods. These are fairly normal wear parts on any vehicle over 100k miles. Once the dealer gets it up on a rack, they should be able to pinpoint exactly what needs to be done

Last edited by danmezz; 02-28-2008 at 09:34 PM.
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Old 02-28-2008, 10:33 PM   #9
djart
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Update did trany fluid change tonight on the way home, second one in two weeks, and the magnet was filled with metal silt again. Something is dieing in the trany! I am praying its a bearing of some kind.

Did alignment about 3 months ago, 12 months after new tire install, will never make that mistake again. The tires where already cupped on the inside at the time of the aliment. im a idot! So i can hear the bad tires as well.

The oil on the green thingy is coming from the trany side all boots look good!

many thanks for the listen on youtube !!
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Old 03-05-2008, 05:34 PM   #10
djart
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UPDATE

Got car in air, noise is from Tanny. They are thinking output shaft bearings?
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Old 03-17-2008, 10:01 PM   #11
scooterforever
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Any update? How was this resolved?
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Old 03-31-2008, 07:33 AM   #12
djart
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http://picasaweb.google.com/blumeyer...39167697403330

Yes took down back section with center diff and found this part has failed. That failure lead to gear damage, see other photos.

My question to the group do you all think that the metal broken parts would have reached the gear box. I do not want to have to pay labor to crack the gear box case! From what I can see I would say not.

Would I have not heard that damage to the gears taking place?

Should I replace my center diff while in the neighborhood?

There are about 40 photos of the damage follow the link and hit the arrows at the top!


Many thanks

djart
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Old 04-02-2008, 08:34 AM   #13
djart
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http://picasaweb.google.com/blumeyer

This link works better!

Sorry
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Old 04-20-2008, 04:42 PM   #14
MrSlowbaru
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i have a similar problem to this, it must be my alignment because my front wheels are at .5 degrees toe in
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