Winesalot Posted November 18, 2017 Share Posted November 18, 2017 My son has a 96 Impreza. I imagine it has the same transmission as the legacy. It is a 5 speed. When he is driving along and unloads the transmission it jumps out of 4th. It doesn’t do this in any other gear. Any idea what would cause this and what my remedy is? Link to comment Share on other sites More sharing options...
doublechaz Posted November 19, 2017 Share Posted November 19, 2017 Good would be if there was a problem with how the shifter is coming up through the floor and boot, pushing it out. The trans mount can do this, and probably a couple other things. You can check for this by taking off the trim and boot and keeping an eye on it for a while. Bad would be 4th gear synchro failing. Rebuild or replace the trans. Link to comment Share on other sites More sharing options...
RustyRuu Posted November 22, 2017 Share Posted November 22, 2017 i've been holding 4th in on my legacy for 30k miles or so just try to change my driving habits and only use it for acceleration. had a 96 impreza that i bought with the same issue for 800 but that only lasted 10k miles before the clutch would not release anymore. holding gears in is bad to do, shame me if you want, but if its already forsitzled it does more good than bad. Your mileage may vary. is he having other issues, knotchy shifts? you could always drain it to see if there is an abnormal amount of metal shavings on the tranny drain plug which is also a magnet. Link to comment Share on other sites More sharing options...
Setnev Posted November 23, 2017 Share Posted November 23, 2017 Here is a great article about what causes pop-outs in gear. There are several factors that will cause it, and I think the article outlines them well. http://www.wcengineering.com/articles/popout.html Link to comment Share on other sites More sharing options...
doublechaz Posted November 23, 2017 Share Posted November 23, 2017 Great article! Turns out I've been lumping the shift hub under the name synchro since they look kinda like an assembly. I didn't know there was a separate name for that part. Anyway, sounds like the shift hub is not so much at fault as movement that allows the shift hub to disengauge. Possibly good news for the blown up trans I have. I always knew I had a damaged bearing in it. That article explains how that produces the symptoms I was having. So OP, shift hub or internal bearings would be the bad news, and mounting problems would be the good news. Link to comment Share on other sites More sharing options...
Winesalot Posted November 26, 2017 Author Share Posted November 26, 2017 Thanks for the info. Next time he is home I will jack up the car and, hopefully, see some mounting problems. Otherwise, its junk yard shopping for a replacement transmission. Link to comment Share on other sites More sharing options...
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