Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

Knocking when upshifting

  • Please log in to reply
4 replies to this topic

#1 Suba9792


    Subaru Fanatic!

  • Members
  • 373 posts
  • Sandy,OR

Posted 19 May 2011 - 01:15 AM

So my 97 Legacy Brighton EJ22 5MT has been knocking when you up shift... symptoms are it knocks only on the up shift going up a hill, flat road, but not down hill. My thoughts are a bad u-joint in the drive shaft, or worn mounts somewhere. I had the trans replaced a few months back but it did this noise with the old one as well, but I'm almost 99.9% sure it has nothing to do with the tranny and the fact that it comes from right under the back seat leads me to the drive shaft. All of the exhaust mounts are new and it is nice and stiff. The exhaust was my first idea but now...I dunno any ideas or has anyone had the same prob. I have no vibration per say just some from the snow tires that are on it.

#2 Suba9792


    Subaru Fanatic!

  • Members
  • 373 posts
  • Sandy,OR

Posted 21 May 2011 - 03:55 PM

Problem solved, GD was under the rear end and noticed one of my "mishaps" :lol: We take it on some pretty rough forest roads since we hike so much and it looks as if we hit a fairly large rock, enough to bend the bracket supporting the mustache bar and causing vibrations through the entire cabin and not allowing that bushing to flex like it should causing the clunk between gear changes. Nothing a hammer couldn't fix:banana: Thanks again Rick!!

#3 rverdoold


    Subaru Nut

  • Members
  • 680 posts
  • Netherlands

Posted 23 May 2011 - 06:46 AM

Is that bar not nearly on top of the gearbox? Must have been a big rock then :)
Hammer the tool of choice!

#4 GeneralDisorder


    Elite Master of the Subaru

  • Members
  • 21,936 posts
  • Portland

Posted 23 May 2011 - 12:40 PM

It's the bracket that supports the end of the mustache bar that holds up the front of the diff. It's bolted to the body with a couple of 8mm bolts and then a large 12mm bolt that goes through the rubber bushing mount of the mustache bar. It was bent such that the metal ring that supports the mustache bar rubber bushing was actually touching the mount - causing a knocking noise and vibration due to the metal-on-metal contact that was bypassing the rubber bushing mount.

Removed the bracket, Hammered it straight on the anvil, and reinstalled. No big deal really - finding it was the biggest chore.


#5 Suba9792


    Subaru Fanatic!

  • Members
  • 373 posts
  • Sandy,OR

Posted 24 May 2011 - 12:22 AM

I know now to just simply avoid the rocks....or try to convince my wife on the GL:lol:

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users