Subaru Forester Owners Forum banner
1 - 13 of 13 Posts

·
Registered
2012 Forester X MT
Joined
·
87 Posts
Discussion Starter · #1 ·
2012 Forester 2.5X 5sp Manual
(A little info leading up: Over the winter when it was real cold, on startup I was hearing what I thought was some throw-out bearing noise but it stopped when the weather got warm)

Anywho the past week or so on a cold start I was hearing a very faint intermittent whine/groan: kinda like errrr ... err, err .........errr, err ...errr
I thought it was just the bearing noise getting worse
Today i as I was listening to the noise letting the car warm up all of a sudden the car began to shudder and the transmission started to grind like I was grinding a gear (foot off clutch, gear stick out of gear)
Instinctively I pressed the clutch. Shuddering and grinding stopped, RPMs were high (about 2K) for a second or two the they dropped and began to idle normal

Then the weird part. Gear stick is out of gear but when I would let out the clutch it was like it was in gear: RPMs would drop and car would begin to roll a little. I Tried this a few times before I said screw it if it stalls it stalls and went to let the clutch out all the way but as it was almost all the way out it went to normal and I was able to press/depress just fine.

while still parked I noticed a very faint gravely rattle while off clutch that would go away when I stepped on the clutch and come back on release

Drove home: Mostly highway with a little stop and go about 45 mins no issues

Pulled in the garage where I could hear well .... no noise at all.

Could this be a bad throw-out bearing?
 

·
Registered
2018 Forester CVT
Joined
·
194 Posts
Done this twice on a front wheel drive Ford Escort (oh, different Escorts) the last one I paid to have it done (tired of laying on my back). If your a DIY you might as well change all three items (never done a Subie) but imagine it the same as a Ford Escort. The reason I paid to have it done I knew it would be done in a day! I had an epiphany on what my time was worth! How many miles on the clutch?
Good luck!
Lou Cioccio
 

·
Registered
2012 Forester X MT
Joined
·
87 Posts
Discussion Starter · #3 ·
Just shy of 120000 miles, original clutch.
I think id attempt TOB and clutch replacement but Im trying to figure out if its the wear and tear parts or if this sounds mroe like an internal trans problem
 

·
Registered
'14 Forester XT Touring
Joined
·
1,135 Posts
Well, can't say too much since i'm new to foresters, but my old '13 BRZ TOB went out with the same sounds you describe.
But every time I pushed the clutch pedal in it made a metal whirling sound. It was very faint at first at cold start then it would go away when the car was warmed up.
The sound keep getting louder and keep going away once warmed up. Till it didn't and it was a constant metal whirling sound every time I pushed the clutch in, even after driving around town.
Eventually my TOB blew up at a Taco Bell drive thru at 88k miles. Had to rev match clutch it back home.

So.. I would plan to do a clutch job soon. Heck, it maybe just time for a new clutch as it could be all worn out too.
 

·
Registered
2012 Forester X MT
Joined
·
87 Posts
Discussion Starter · #6 ·
Thanks for the Input. My only concern is I cant seem to make a connection with how a bad TOB could cause the trans to try to engage a gear by itself. Clutch job istn scary to me at all, but new trans or even trans rebuild is scary. Just trying to determine if its an issue in the trans or related to the cliuch/TOB
 

·
Registered
'14 Forester XT Touring
Joined
·
1,135 Posts
Thanks for the Input. My only concern is I cant seem to make a connection with how a bad TOB could cause the trans to try to engage a gear by itself. Clutch job istn scary to me at all, but new trans or even trans rebuild is scary. Just trying to determine if its an issue in the trans or related to the cliuch/TOB
Well, the only thing I can think of is that the TOB is stuck on the 'engaged' part. And the fork can't move it back.
Then again I seen bad clutches do weird donkey poop. I seen work perfectly well, till you drive up a hill and it would pop out the gear. I seen it love 1st gear and hate the rest. I seen it hate 1st, 3rd, and 5th. I seen a clutch work great, with out pushing in the clutch pedal.

The only way you'll know for sure is when you pull the tranny out.
 

·
Registered
2012 Forester X MT
Joined
·
87 Posts
Discussion Starter · #9 ·
Very true about having to pull it to find out. There is a very good transmission shop near me Ill give em a call to see if they would do a subaru trans rebuild before I get to ahead of myself.
Im kinda thinking my issue may be the input shaft bearing, not really sure how to diagnose that once the tranny is out though.
 

·
Registered
'14 Forester XT Touring
Joined
·
1,135 Posts
Very true about having to pull it to find out. There is a very good transmission shop near me Ill give em a call to see if they would do a subaru trans rebuild before I get to ahead of myself.
Im kinda thinking my issue may be the input shaft bearing, not really sure how to diagnose that once the tranny is out though.
Chances are your tranny is fine. Unless you had tranny fluid leak and been doing drag pulls, or towing boats up hill, your tranny is fine. A new clutch/tob/fluid might be all you need.
I like your way of thinking, plan for the worse just to have all your bases covered. Another option if it is the tranny, is finding a used one. Not a high mileage one but one from an accident that didn't affect the drive train.
 

·
Registered
2012 Forester X MT
Joined
·
87 Posts
Discussion Starter · #11 ·
I just wanted to post an update here. The clutch job was done in the fall and although the TOB was bad, this spring the noise came back only 2x as bad. At this point I can only surmise that it is in fact a bad input shaft bearing. Currently the trans is being rebuilt at a local shop and I will provide another update when I get back and its back in the car.
 

·
Registered
2012 Forester X MT
Joined
·
87 Posts
Discussion Starter · #12 ·
And just to follow up: It was indeed a bad input shaft bearing. Unfortunately in my case the bearing had been spun for so long that the inner race welded itself to the shaft. The shop could not get it off the shaft and figured they would ruin the balance on the shaft if they tried to cut it off. Ended up sourcing a used trans to replace this one.
Moral of the story, I should have had the trans looked at in the first place.
 
1 - 13 of 13 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top