Welcome to the North American Subaru Impreza Owners Club Thursday July 10, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
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 01-27-2010, 04:12 PM   #1
spulbi
Scooby Specialist
 
Member#: 190378
Join Date: Sep 2008
Chapter/Region: SCIC
Location: Vancouver/Portland/SCIC/OC
Vehicle:
2002 WRX stg2
w/ 2005 STI front conver

Default **** Transmission problems... again! !!!!SOLVED!!!!

Sooo I have rebuilt my transmission twice. NOT looking forward to doing it again.
Everything has been going great after the last rebuild, until I decided to switch gear oil and went with Redline Shockproof (3 qts) and Motul Gear 300 (less than 1 qt).

At the same time I went with Redline Diff oil in the rear.

As soon as I changed the fluid, my car started making weird noises such as the ones you will see in the video. I don't even know how to describe them! I tried contacting the creators of the videos, but I haven't found anything out yet.

What could it be???



To me it seems like it is coming from the front right, but I am not sure. The sound is kind of like metal scraping together, and sometimes it sounds like its bumping around.


Axle?
Wheel bearing?
Center diff?
Rear diff?

Ahhh help me out guys
* Registered users of the site do not see these ads.

Last edited by spulbi; 01-28-2010 at 06:42 PM.
spulbi is offline   Reply With Quote
Old 01-28-2010, 02:05 AM   #2
aaron04
Scooby Specialist
 
Member#: 146569
Join Date: Apr 2007
Chapter/Region: NWIC
Location: Vancouver, WA
Vehicle:
2009 A4

Default

almost sounds like my PPG's lol, hrmm i would guess a center diff or front diff. it is speed dependent right? ie the faster you go the louder? or is it rpm dependant?

my guesses would be center diff, front diff or a wheel bearing. its really hard to tell. hope its something easy i guess. if it still makes the noise in neutral its definitely not your gears.

but the front and center diff will still make noise.

the best way to find out would be to put in on a lift and drive it and listen under the car for the source.

hope this helps ed
aaron04 is offline   Reply With Quote
Old 01-28-2010, 09:29 AM   #3
AndrewtechAutomotive
NASIOC Vendor
 
Member#: 99694
Join Date: Nov 2005
Chapter/Region: MAIC
Location: 94 Legacy Right-hand,
Vehicle:
2002 dogbox,'11 wrx

Default

Those videos have pretty good sound quality!Is the noise speed related only? It doesnt mater if your in gear or not, it still makes the same noise and seems to follow speed???

Andrew
AndrewtechAutomotive is online now   Reply With Quote
Old 01-28-2010, 12:18 PM   #4
arminyack
Scooby Newbie
 
Member#: 211671
Join Date: May 2009
Default

Sounds all too familiar...my 04 FXT is making the same damn noise. I'm getting the dealership to look at it tomorrow.
arminyack is offline   Reply With Quote
Old 01-28-2010, 04:36 PM   #5
spulbi
Scooby Specialist
 
Member#: 190378
Join Date: Sep 2008
Chapter/Region: SCIC
Location: Vancouver/Portland/SCIC/OC
Vehicle:
2002 WRX stg2
w/ 2005 STI front conver

Default

Well after hours of reading and pouring through old threads (01+) I FOUND THE PROBLEM!

I believe in the original WRX deceleration noise thread somebody mentioned the rear subframe brackets that they used to jack up the car. It turns out, when I changed my transmission and rear diff oil, I used that bracket to jack up the rear, and I bent the bracket. I thought I had messed up something in the transmission.

What ended up happening, was whenever I would decelerate in gear, ~40 mph in fourth gear, the vibration from the rear diff and propeller shaft was traveling through the chassis, because that bracket was touching the rear subframe.

Sooo for all the people out there like me, it wasn't a clutch problem, it wasn't a tranny problem, and it wasn't a diff problem. It was a stupid metal bracket that took me ten minutes to bend back.

Case closed.
spulbi is offline   Reply With Quote
Old 01-28-2010, 07:32 PM   #6
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

you dont know how many of those that I have had to hammer back into shape after loonies have bent them like that
Uncle Scotty 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
All your diet problems are solved! thrashvr6 Off-Topic 0 06-15-2004 12:53 PM
Real world math/logic problem. Needs solved. Keenan Off-Topic 7 08-27-2003 03:13 PM
Attempting to solve transmission problems dragcar Transmission (AT/MT) & Driveline 1 02-21-2003 05:14 PM
Vishnu problems not solved with EMI BlackWagon Engine Management & Tuning 25 02-10-2003 08:15 AM
CE light- Problem hopefully solved JayGold Mid West Subaru Owners Club Forum -- MWSOC 5 02-15-2002 12:21 PM


All times are GMT -4. The time now is 12:01 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.