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Old 03-04-2013, 11:47 PM   #1
BGB
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Default Strange sound coming from Trans: 02 5mt Forester L

So as of 2 days ago my car has been making a whining sound that sounds like it is coming from the trans/shifter area.
It makes the sound at all times, be it in gear and neutral.
It does not clunk in tight turns, it doesn't make any other sounds but this grinding.
It gets worse with accel, such as higher pitched.
No vibrations, rattles, or shakes.
Gets quieter with the clutch depressed but still present

The car is a 02 forester L 5mt with 124k on it.
Was all dealer maintained.
Dealer installed a new clutch at 102k for it.

I changed the trans fluid 1 day into the sound.
The fluid was stinky and black in color , I had quite a bit of metal shavings on the drain plug but the fluid looked like it had been in there a while.

Any idea what it could be?

I think it may be the center diff, and have one ready to buy but I need more opinions.
I also have a full trans lined up to buy.

To me it sounds like the diff or a bad out put bearing, sounds like a dead bearing trying to spin if you ask me, specially at high way speed.

Video to follow
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Old 03-05-2013, 12:07 AM   #2
BGB
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Here is a video of going through the gears up to 45mph
http://i7.photobucket.com/albums/y25...ps222e782b.mp4

Here is a video of highway speed around 70mph
http://i7.photobucket.com/albums/y25...psb8179f17.mp4
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Old 03-05-2013, 12:30 AM   #3
GT11
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Yup, I'd start saving for a new trans.
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Old 03-05-2013, 09:19 AM   #4
BGB
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And why do you say that?
Can a trans be blown, yet still shift smooth, no pop outs, no clunks, go into every gear perfectly?
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Old 03-05-2013, 10:03 AM   #5
JMSok8
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That is definately a bearing somewhere. Put it up on some jack stands or have a mechanic put it up in the air and see what part of the tranny the noise is coming from. Anything toward the front is bad, anything around the driveshaft is a good (yet crappy) sign.
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Old 03-05-2013, 11:51 AM   #6
BGB
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Just had iT looked at this morning they said towards the center to the front of the trans is the sound location.
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Old 03-05-2013, 07:22 PM   #7
scarney1988
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This sounds to be an excessivly worn input shaft bearing. Assuming noise is heard from any gear with the clutch fully engaged (foot off clutch pedal), including nuetral while at a stop(although it may not make noise due to no load condition), I would venture to say you have a bad input shaft bearing. Just reread where you say it gets better with clutch depressed, so im fairly certain this is the case. Also, the noises location also indicates this aswell.

Save for new trans, or trans repair. Maybe someone else will chime in and see if they agree. Didnt get a chance to watch your videos, or look up a parts diagram to see the internal setup of your trans, cause im in class.
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Old 03-05-2013, 07:58 PM   #8
yarrgh
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Some of the bearings are fairly simply to change out, you don't need an entirely different transmission.
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Old 03-05-2013, 08:31 PM   #9
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Holy **** people, shut your yaps if you think a new transmission is the fix.

It's almost certainly an input shaft bearing. If you have access to a press and have a decent skill set, it's not at all difficult to do. Time consuming yes, but not hard (or expensive)

You'll need to replace the bearings (red) and replace the front seal while you're at it. You also need to replace the center diff to transmission gasket while you're in there.



Reference this thread on how to fix it

http://www.rs25.com/forums/f105/t128...lkthrough.html

And this one for how to get the tranny apart.

http://www.ultimatesubaru.org/forum/...l-replacement/

You can reference this image out of the FSM for what parts you need. 1 is the front seal, 2 is the little needle bearing, and 14 is the big ol mammjamma that makes all of that noise. I forget the other numbers, but 14 (The big one) is 806225100

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Old 03-05-2013, 10:07 PM   #10
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Quote:
Originally Posted by scarney1988 View Post
sounds to be an excessivly worn input shaft bearing... Save for new trans, or trans repair.
Do I have to shut my yap?

If the OP goes for it I have a few suggestions to in addition to the walkthrough posted above.

Even if you dont have a press you could take it to a shop after you get the input shaft out and still save some good cash.
  • Consider replacing/refinishing the following while your in there
  • Possibly spray any exhaust bolts (hopefully they still look like bolts) with some rust penetrant to help you out
  • replace clutch disk, pressure plate, throwout bearting
  • resurface flywheel
  • Shifter bushings
  • Axles/boots (if any are damaged)
  • Transmounts
Not all are absolutely necessary, but things to think about before you go in for it.
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Old 03-05-2013, 10:12 PM   #11
GrundleJuice
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Quote:
Originally Posted by BGB View Post
Was all dealer maintained.
Dealer installed a new clutch at 102k for it.
Quote:
Originally Posted by cal_look_zero View Post
Holy **** people, shut your yaps if you think a new transmission is the fix.

It's almost certainly an input shaft bearing. If you have access to a press and have a decent skill set, it's not at all difficult to do. Time consuming yes, but not hard (or expensive)

You'll need to replace the bearings (red) and replace the front seal while you're at it. You also need to replace the center diff to transmission gasket while you're in there.


Reference this thread on how to fix it

http://www.rs25.com/forums/f105/t128...lkthrough.html
For being such a confident bitch about it, how do you explain the noise/pitch following the vehicle speed and not the engine speed if it is on the input shaft?

And fore someone who has had the dealer do all of the maintenance and clutch replacement, what makes you think they would want to tackle this job?

all of the bearings in the transmission are located in two areas, the center of the gearbox and the rear of the gearbox. two bearings in each location. there are also two tapered roller bearings on the front diff/ring gear shaft (whatever that's called). tapered roller bearings tend to make a buzzing/whining sound when they are contaminated or no longer smooth rollers/race. just like a wheel bearing. Are the input/output shaft bearings roller/ball or plain?

Last edited by GrundleJuice; 03-05-2013 at 10:19 PM.
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Old 03-06-2013, 11:36 AM   #12
BGB
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I did not have the dealer do this work, i recently purchased the car at 124k, It was a 1 owner vehicle that was all dealer maintained.

I managed to find a trans with similar miles out of an 04 forester 5 sp for 520$ shipped that is is good working order, shifts fine, and has clear fluid.

So i will have time to take apart the old trans and inspect, rebuild.
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Old 03-06-2013, 09:03 PM   #13
scarney1988
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nice. This sounds like a happy resolution.
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Old 03-08-2013, 01:57 AM   #14
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Diffidently sound like a bearing... what does the oil look like??? and the smell?? you can do a oil scan to tell you if you have a bearing failing. just my two cents.
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