Welcome to the North American Subaru Impreza Owners Club Friday September 21, 2018
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Transmission (AT/MT) & Driveline

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 05-18-2018, 09:00 AM   #1
10ecman
Scooby Newbie
 
Member#: 474890
Join Date: Sep 2017
Default 6mt will not shift unless started in gear

Ok new to me my son's sti swapped 6 speed manual will not shift between gears. You can start it in reverse let the clutch out and it will back up. Go to a forward gear and nothing. Kill the engine put it in first and it will go forward. His graduation is tonight and I really need to resolve this so he can have it for project graduation
* Registered users of the site do not see these ads.
10ecman is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 05-18-2018, 11:18 AM   #2
Samurai Jack
Scooby Guru
 
Member#: 21145
Join Date: Jul 2002
Chapter/Region: NESIC
Location: Not in my own time
Vehicle:
2002 Enemy of Aku

Default

OK, so let's start with stupid questions first:

1. What year car?
2. What year transmission?
3. What type shifter?
4. Is the shifter linkage hooked up correctly?
5. Is there any gear oil in the transmission?
6. What type of transmission gear lube are you using?
Samurai Jack is offline   Reply With Quote
Old 05-18-2018, 12:40 PM   #3
mrsaturn7085
Scooby Specialist
 
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2006 Impreza WRX STI
WR Blue

Default

Honestly, you'll probably be opening the transmission case regardless if the shift linkage checks out okay... so you're not gonna knock this out in a night.
mrsaturn7085 is offline   Reply With Quote
Old 05-18-2018, 01:19 PM   #4
Charlie-III
Scooby Guru
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

Quote:
Originally Posted by Samurai Jack View Post
OK, so let's start with stupid questions first:

1. What year car?
2. What year transmission?
3. What type shifter?
4. Is the shifter linkage hooked up correctly?
5. Is there any gear oil in the transmission?
6. What type of transmission gear lube are you using?
Agreed.

Additional questions.......
Are you saying you can shift gears engine off, but can't select a gear engine running while stopped?
If so, does it shift OK once the car is moving?

If yes to both, sounds like the clutch is not disengaging. May need a clutch system bleed, may be a bad clutch, ToB, failing pressureplate, broken ToB fork, etc.

Short term, select the gear to move.....start car. If you need to change direction (you backed out, now need to go forward), shut off engine, select a forward gear and drive.
Have to stop at some point? You may need to shut the engine off so you don't fry the clutch when sitting stationary. Start back up in gear.
Charlie-III is offline   Reply With Quote
Old 05-18-2018, 01:22 PM   #5
Charlie-III
Scooby Guru
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

Waiting to see what the reply is....I think I have it......this time.......
Charlie-III is offline   Reply With Quote
Old 05-18-2018, 01:24 PM   #6
impresaru
Scooby Newbie
 
Member#: 486136
Join Date: May 2018
Default

It seems like a transmission case here.
impresaru is offline   Reply With Quote
Old 05-18-2018, 05:09 PM   #7
mrsaturn7085
Scooby Specialist
 
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2006 Impreza WRX STI
WR Blue

Default

Quote:
Originally Posted by impresaru View Post
It seems like a transmission case here.
Oh yeah... that's gotta be it.
mrsaturn7085 is offline   Reply With Quote
Old 05-18-2018, 07:20 PM   #8
Charlie-III
Scooby Guru
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

Quote:
Originally Posted by mrsaturn7085 View Post
Oh yeah... that's gotta be it.


Then again, we will be shamed if he is correct (not likely......waiting on OP feedback.....just trying to help.....).
Charlie-III is offline   Reply With Quote
Old 05-21-2018, 12:05 AM   #9
10ecman
Scooby Newbie
 
Member#: 474890
Join Date: Sep 2017
Default 6mt will not shift unless started in gear

Sorry guys the driver is now a high school graduate so family in from all over the us. The car is an 04 wrx with 01 jdm sti swapped tranny and differentials. I found a sticker that is TY856WB1AA which is on a master list as being a 6 speed mt from an 01 JDM import. It has a new hybrid motor built by motion labs in Charlotte NC. It shifts fine except a few days before this incident it started to grind only going into 5th. It doesn't do it all the time. Now as if magically cured it shifts like normal. We have been a little wet over the last week and I have talked to another guy who buys and sells subaru's he said it was the clutch getting wet and not disengaging. When this happened if it was running it would not go to any of the 7 gears, however if the car was off you could select any gear and start it and move it but not change out of the gear selected. Thanks for your help. I will stay on top of this now that graduation and family have headed home. On a totally separate thing right before the no shift thing we have a whine that sounds like a super charger and changes with rpm changes. We removed the belts and the sound still remains. I pulled the exhaust and the turbine impellers seem to have no movement forward or laterally.

Last edited by 10ecman; 05-21-2018 at 02:37 AM.
10ecman is offline   Reply With Quote
Old 05-21-2018, 12:08 AM   #10
10ecman
Scooby Newbie
 
Member#: 474890
Join Date: Sep 2017
Default

It also after I posted started shifting fine like nothing had happened when he was leaving for school so he drove it home after school and back and forth to project graduation. Not sure but I think this car is trying to kill me as well as bankrupt me and all before he goes to college in the fall.
10ecman is offline   Reply With Quote
Old 05-21-2018, 12:14 AM   #11
10ecman
Scooby Newbie
 
Member#: 474890
Join Date: Sep 2017
Default 6mt will not shift unless started in gear

To answer Samurai this car was bought with the newly built hybrid engine. So I don't know what year tranny it came from as well I don't know what trans fluid is in it. I assume since it has worked fine since September 2017 it is hooked up correctly as we have done absolutely nothing with the clutch,gears or tranny. So if you tell me where to look to ascertain what year tranny we have I will be glad to know than info. To my knowledge the shifter is stock.

Last edited by 10ecman; 05-21-2018 at 12:26 AM.
10ecman is offline   Reply With Quote
Old 05-21-2018, 11:03 AM   #12
Charlie-III
Scooby Guru
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

I highly doubt the "clutch getting wet" is an issue, unless maybe you drove through 1.5' of water.

I can see not enough lube on the trans input shout or trans splines causing the friction plate to hang up a bit. Or, dirty snout or splines.
Charlie-III is offline   Reply With Quote
Old 05-21-2018, 11:53 AM   #13
mrsaturn7085
Scooby Specialist
 
Member#: 375462
Join Date: Dec 2013
Chapter/Region: NWIC
Location: Portland, OR
Vehicle:
2006 Impreza WRX STI
WR Blue

Default

Lack of grease on the snout should not cause a hang up that a hydraulic piston cannot clear.
mrsaturn7085 is offline   Reply With Quote
Old 05-21-2018, 12:20 PM   #14
Charlie-III
Scooby Guru
 
Member#: 30669
Join Date: Dec 2002
Chapter/Region: Tri-State
Location: USA, North NJ, 07456
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper BK, 5MT

Default

Quote:
Originally Posted by mrsaturn7085 View Post
Lack of grease on the snout should not cause a hang up that a hydraulic piston cannot clear.
I don't disagree with that statement.
I will say, if parts of an install are not done right (cleaning, dry fitting, then lube on assembly) then who knows what is the issue?

I still doubt the "clutch was wet".
Likely simple issue, just a PITA to get to the simple issue.
Charlie-III is offline   Reply With Quote
Old 05-21-2018, 09:52 PM   #15
10ecman
Scooby Newbie
 
Member#: 474890
Join Date: Sep 2017
Default

But why Friday? Why not Christmas Day or New Years. There was nothing other than a bunch of rain everything else remained the same. So if some one messed up the install it took forever to show up? I just can't figure out. The sometimes grind in 5th just started. Shortly before this latest hiccup. It has been driven daily by my son. He babies this car. My philosophy is flog it and if it breaks we will fix it. He is not anything like me. This was his high school graduation present. He got a full ride to U of M and he wanted a wrb 02-07 wrx. This one being a jdm sti swap and a new motor build won out. So it goes to the dyno tomorrow so I guess I'll see if the tuner can find anything . Thanks guys
10ecman is offline   Reply With Quote
Old 05-22-2018, 07:58 AM   #16
Samurai Jack
Scooby Guru
 
Member#: 21145
Join Date: Jul 2002
Chapter/Region: NESIC
Location: Not in my own time
Vehicle:
2002 Enemy of Aku

Default

Quote:
Originally Posted by 10ecman View Post
The car is an 04 wrx with 01 jdm sti swapped tranny and differentials.

I assume since it has worked fine since September 2017 it is hooked up correctly as we have done absolutely nothing with the clutch,gears or tranny.
The above is good info that was needed.
- If it has been running for 8 months w/no issue, then it's not an initial install issue.
- Your shifter has a shift linkage ( rods ) as opposed to a cable shifter. One thing to check is the linkage to see if the bushings, etc. are greased or if the grease has worn off over the winter.
- The shifter could be binding on something, so that is also something to check

I don't get the "wet clutch" thing either unless, as Charlie-III said, the car was driven through a river
Samurai Jack is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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
Forum Jump

All times are GMT -4. The time now is 08:17 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.