Transfer Clutch problem that won't go away - Subaru Forester Owners Forum
User Tag List

 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 11 (permalink) Old 12-07-2009, 07:55 PM Thread Starter
Forum Member
 
Join Date: Aug 2007
Location: The Catskills, NY
Posts: 8
Car Year: 2005
Car Model: Forester
Transmission: 5MT
Gallery: 0
Feedback Score: 0 reviews
Transfer Clutch problem that won't go away

Hi-

My 4EAT 2000 Forester has been exhibiting the clutch binding problems on turns that I have seen described here and elsewhere. Basically when making sharp turns it feels like you are driving over a rumble strip.

Well my local Subaru dealer replaced the transfer solenoid, the clutches and plates, and the extension case and the problem seemed worse. So I took it back and he replaced the reduction drive gear and shaft, as well as putting in a second new clutch pack and it got a little better but is still there. I am frustrated and annoyed- before I go back again does anyone have any idea what might be going wrong here?

Thanks in advance…
filmguy is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 12-07-2009, 09:19 PM
Forum Member
 
Nick D's Avatar
 
Join Date: Feb 2009
Location: West Springfield, Massachusetts (Taxachusetts)
Posts: 944
Car Year: 2007
Car Model: 2.5X
Transmission: 5mt
Gallery: 0
Feedback Score: 0 reviews
Thats sounds like a bad center differantial. Did they check that?

2007 Subaru Forester 2.5X MT
165,000+ Miles
Nick D is offline  
post #3 of 11 (permalink) Old 12-07-2009, 09:32 PM
Registered User
 
Join Date: Oct 2009
Location: NoVA
Posts: 49
Car Year: 2006
Car Model: wrx
Gallery: 0
Feedback Score: 2 reviews
what's your tire situation? any replaced individualy/in pairs without replacing all 4?
06wrxturbo is offline  
post #4 of 11 (permalink) Old 12-08-2009, 04:13 AM Thread Starter
Forum Member
 
Join Date: Aug 2007
Location: The Catskills, NY
Posts: 8
Car Year: 2005
Car Model: Forester
Transmission: 5MT
Gallery: 0
Feedback Score: 0 reviews
My impression was that the center differential consisted of the transfer clutches and associated parts- and my confusion lies in the fact that they have replaced almost all of those parts and there is no significant difference.

Tires have always matched and been regularly rotated and inflated, and they certainly have been since this problem arose.
filmguy is offline  
post #5 of 11 (permalink) Old 12-08-2009, 06:46 AM
Forum Member
 
funkymonkey1002's Avatar
 
Join Date: Jan 2006
Location: Boston
Posts: 9,013
Car Year: 2004
Car Model: 2.5 XT
Transmission: 4eat
Gallery: 0
Feedback Score: 8 reviews
You most likely have an issue with a speed sensor. Its probably thinking that the back is always slipping, and always sending power to the rear. All tires match, right?

Was the transfer solenoid valve body replaced, or just the solenoid?

04xt/4eat, 16g, STI bits and bobs
funkymonkey1002 is offline  
post #6 of 11 (permalink) Old 12-08-2009, 06:55 AM Thread Starter
Forum Member
 
Join Date: Aug 2007
Location: The Catskills, NY
Posts: 8
Car Year: 2005
Car Model: Forester
Transmission: 5MT
Gallery: 0
Feedback Score: 0 reviews
Hmm, speed sensor- now there's an interesting idea- where are these speed sensors located?

It looks like what they replaced was

31942AA103 VALVE AY TRAN
31952AA060 PLATE TRANSFE
33284AA001 SEAL TRANSFER

All tires match.
filmguy is offline  
post #7 of 11 (permalink) Old 12-08-2009, 08:09 AM
Forum Member
 
Join Date: Dec 2008
Location: Alberta, Canada
Posts: 25
Car Year: 2001
Car Model: Forester S
Gallery: 0
Feedback Score: 0 reviews
AT versions have no center diff. Seems like all that stuff they did should have solved the problem. I agree that you should look into the valve body and perhaps speed sensors.
johngenx is offline  
post #8 of 11 (permalink) Old 12-08-2009, 08:55 AM
Forum Member
 
simxs's Avatar
 
Join Date: Jun 2007
Location: Sydney, NSW, Australia
Posts: 57
Car Year: 2002
Car Model: Forester XS
Gallery: 0
Feedback Score: 0 reviews
Is a steering angle sensor fitted on that model? If failed, then the MPT may be remaining engaged during turns when it ought to be partially disengaging.

Also, have you tested with the 2WD fuse in to temporarily eliminate the MPT from the equation and make sure it's not something else in the drivetrain causing the problem?
simxs is offline  
post #9 of 11 (permalink) Old 12-08-2009, 01:16 PM Thread Starter
Forum Member
 
Join Date: Aug 2007
Location: The Catskills, NY
Posts: 8
Car Year: 2005
Car Model: Forester
Transmission: 5MT
Gallery: 0
Feedback Score: 0 reviews
I have no idea if it has the steering sensor- where would that be located?

It drives like a champ in FWD mode.

I looked in the manual at the speed sensors- it looks like the whole wiring harness would need to be replaced, which would involve some disassembly of the tranny to make all of the connections- no small job at all. I am guessing that my dealer would have diagnostic equipment that could determine if it is some sort of valve body/speed sensor problem? I feel a little bit like he has been guessing so far...
filmguy is offline  
post #10 of 11 (permalink) Old 12-09-2009, 07:43 AM
Forum Member
 
funkymonkey1002's Avatar
 
Join Date: Jan 2006
Location: Boston
Posts: 9,013
Car Year: 2004
Car Model: 2.5 XT
Transmission: 4eat
Gallery: 0
Feedback Score: 8 reviews
Quote:
Originally Posted by filmguy View Post
I have no idea if it has the steering sensor- where would that be located?

It drives like a champ in FWD mode.

I looked in the manual at the speed sensors- it looks like the whole wiring harness would need to be replaced, which would involve some disassembly of the tranny to make all of the connections- no small job at all. I am guessing that my dealer would have diagnostic equipment that could determine if it is some sort of valve body/speed sensor problem? I feel a little bit like he has been guessing so far...
On nonturbo models the front and rear speed sensors are somewhere in the transmission (just looked it up recently but can't remember where they are), the turbo models have the rear speed sensor on the side of transmission case. Where in NY are you? You might want to give IPT a call as they specialize in import automatic transmissions and seem to have the most experience with the subaru AT. I believe that a dealers SSM (select monitor) reader can read the input of all these sensors, they should be able to plug it in and see if they're reading correctly.

04xt/4eat, 16g, STI bits and bobs
funkymonkey1002 is offline  
post #11 of 11 (permalink) Old 12-09-2009, 01:02 PM
Forum Member
 
SkateandDestroy's Avatar
 
Join Date: Dec 2006
Location: New Jersey
Posts: 857
Car Year: 04
Car Model: XT 68HTA
Transmission: 12.20@113
Gallery: 0
Feedback Score: 2 reviews
I'm assuming the dealer put all new fluid in when they changed the transfer clutch out? If not do a flush or a few drain/refills.

I just had this problem and what fixed it was: a drain/refill plus adding Lubegard additive. The Lubegard (black bottle one) keeps the clutch packs from binding up. You can pick it up at Napa. It will say "Highly Friction Modified ATF Supplement" on the bottle.

If you can't find Lubegard black, try 10 ounces of GM LSD additive.

Good luck, keep us posted!
SkateandDestroy is offline  
Sponsored Links
Advertisement
 
Reply

  Subaru Forester Owners Forum > Technical Forums and Vehicle Assistance > Problems, Maintenance, and Warranty

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Subaru Forester Owners Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome