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Old 01-19-2010, 10:29 PM   #1
-scoobyblue-
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Default Whinning noise starting around 45mph

Well I just recently finished up a 300 mile round trip when i started hearing this noise. It is a noticeable whining sound which can dissipate at times and come back. I have checked my tires and everything looks fine, hubs feel tight but i just cant figure out what it could be. The sound is coming from the front of the vehicle and engine RPMs have no effect on the sound. Here is a quick video as i have not found any solid information searching.

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Old 01-20-2010, 06:07 PM   #2
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Anyone?
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Old 01-20-2010, 06:10 PM   #3
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Couldn't get the sound from the video to work. But a quick guess would be a bearing in the transaxle somewhere.
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Old 01-20-2010, 09:44 PM   #4
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Quote:
Originally Posted by 340Duster View Post
Couldn't get the sound from the video to work. But a quick guess would be a bearing in the transaxle somewhere.
That's weird, sound works fine for me. It seems to be louder sometimes before the car is warmed up, Ive never heard this noise before and it isn't like bad CV joints or wheel bearings.
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Old 01-20-2010, 11:41 PM   #5
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Probably a bearing in the transfer case part of the transaxle.
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Old 01-21-2010, 04:55 PM   #6
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Default Re: Whinning noise starting around 45mph

I really hope it's nothing internal on the transmission.
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Old 01-22-2010, 01:21 PM   #7
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Does the whine go away if you push down hard on the shifter? I have a whine/hooooooo sound that starts around 45, and becomes very loud and apparent around 65-75 mph. I can make it change pitch and tone by putting on a different shift knob, or by pushing down hard on the shifter. I completely removed my entire shifter assembly, cleaned it, greased it, torqued it to proper specs, and it still didn't help.

My guess is that it is something in the transfer case or extension case that is reverberating at that speed and the harmonics are transferred through the shifter into the cabin. I am looking at ways now to dampen out the harmonic, since I have dealt with this issue for months now, but just recently really wanted to figure out what it was that is causing it.

Also to note, I have flushed fluids, removed stiffer bushings (replaced them when figured out they weren't causing it), checked for rocks stuck in the subframe, swapped wheels, etc. It will only come on during a load being applied and at a range of speed, it will go away when the throttle is lifted, and it will not change pitch no matter if cruising, or WOT.
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Old 01-22-2010, 04:22 PM   #8
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Doing anything with the shifter doesn't seem to change the noise, even coasting in neutral it is still prevalent. I did install poly shifter bushings about a week before i noticed any noise, I might remove them to see if there is any difference. Of course this begins after my girlfriend started going to school 150 miles away ... I might just keep making the trips until something absolutely breaks and by then ill have a good idea what it is haha
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Old 01-22-2010, 05:01 PM   #9
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I'll be meeting up with a guy local to me who had a similar noise, and his problem ended up being some broken teeth on his transfer gear. If he says his sound is pretty much spot on with what his was, then I'll be cracking open a tranny soon... If not, I'll be happy knowing its most likely not something internal. Then will focus on the driveshaft carrier bushing or the rear diff.
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Old 01-22-2010, 10:15 PM   #10
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Quote:
Originally Posted by MConte05 View Post
I'll be meeting up with a guy local to me who had a similar noise, and his problem ended up being some broken teeth on his transfer gear. If he says his sound is pretty much spot on with what his was, then I'll be cracking open a tranny soon... If not, I'll be happy knowing its most likely not something internal. Then will focus on the driveshaft carrier bushing or the rear diff.
I would be speechless if that is what the problem is considering it started making that noise going down the highway with cruse control on.. You never know tho with a transmission made of glass . Anyways thanks for your help and I look forward to hearing back from you after talking with your friend.
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Old 01-22-2010, 10:52 PM   #11
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My car has a similar problem, but the whining isn't limited to a certain speed.
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Old 01-23-2010, 02:34 AM   #12
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Well, he took a look at it, and was crawling all over the car while I was driving on the highway. He is pretty sure it is the carrier bearing on the driveshaft. He showed me what a good driveshaft should look and feel like in regards to the amount of side to side play (almost none at the bearing). He doesn't have a proper garage so wasn't able to look under mine to check. But tomorrow or Sunday night I'll be getting under the car to check the play and see if it's out of whack. If that is nice and tight, then it is most likely the transfer gears.
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Old 01-24-2010, 03:41 PM   #13
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Quote:
Originally Posted by MConte05 View Post
Well, he took a look at it, and was crawling all over the car while I was driving on the highway. He is pretty sure it is the carrier bearing on the driveshaft. He showed me what a good driveshaft should look and feel like in regards to the amount of side to side play (almost none at the bearing). He doesn't have a proper garage so wasn't able to look under mine to check. But tomorrow or Sunday night I'll be getting under the car to check the play and see if it's out of whack. If that is nice and tight, then it is most likely the transfer gears.
Im going to have to check that the next nice day we have, lately it has seemed to come and go more so i know its not anything with any direct load. Thanks again for the help.
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Old 01-24-2010, 10:15 PM   #14
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Got under the car while working on swapping out my suspension (Tokico D-Specs + STI takeoff springs = tits) and found the carrier bushing to be all out of whack, nearly a 1/4" or more of play in any lateral direction when there really should be almost none. So I'll be looking for a used driveshaft to replace that with.
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Old 01-24-2010, 11:27 PM   #15
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Quote:
Originally Posted by GetOnTylersLevel View Post
My car has a similar problem, but the whining isn't limited to a certain speed.
possible center diff problem
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Old 01-26-2010, 11:59 AM   #16
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Well hopefully a friend will be able to pick up a super-cheap, but perfectly good driveshaft for me this weekend and *hopefully* will have the problem solved next week when I find the time to install it. I'll keep you guys updated.
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Old 01-26-2010, 04:07 PM   #17
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ove the last few days the noise has changed from the whinning like at first to more of a grinding, its starting to sound like a bad cv joint which thankfully isn't anything internal. If the weather holds up when I get home today I will jack up the car to confirm.
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Old 01-26-2010, 05:49 PM   #18
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Well I finally got under the rex, I noticed that the cv boot on the inner passenger side cv has split open with grease slung all over the place. With the cv being dry this leads me to believe the 300 miles on the highway destroyed the cv joint and with it being the inner joint that could be why i dont notice any difference when turning in either direction. Here is an updated video of the noise its making now, all i need is someone to verify it sounds like a bad cv now so that i dont go ordering a bunch of parts with no fix

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Old 01-27-2010, 07:17 PM   #19
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bump...
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Old 01-27-2010, 09:13 PM   #20
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Bump! This kind of sounds like my problem too!

Not knowing what it is is the worst part!
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Old 01-29-2010, 12:22 PM   #21
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I have the same problem and it's a bad rear diff. I had a tranny tech listen to it and he said it was def the tranny. He tore it apart and put it back together just to find out it was the rear diff the whole time. The reason why the noise sounds like its from the front end/ tranny is because the whine is traveling along the main drive shaft. If you're able to put it on a lift, do so and listen from under the car, that's how the guy found my whine.
-Just my .02
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Old 02-02-2010, 02:32 PM   #22
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Default Re: Whinning noise starting around 45mph

Well I installed a new front axle only to find it making the same noise. I did notice a little notchy feeling in the front diff. My guess is to look into that next
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Old 02-11-2010, 12:52 AM   #23
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Welp, replacing the driveshaft did nothing for me. So now assuming its the transfer gears somehow.
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Old 02-11-2010, 11:05 AM   #24
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i had the same type of noise on my 2009 wrx. took it in they said the bearings were bad. they are rebuilding my tranny under warrenty.
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Old 02-17-2010, 06:07 PM   #25
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I am a bit confused now... All afternoon the car has not made that noise, I dont even have an explanation for it but I just hope it stays like this. Gotta love when vehicles fix themselves somehow
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