Welcome to the North American Subaru Impreza Owners Club Sunday July 13, 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 07-24-2008, 04:18 PM   #1
nperkins
Scooby Specialist
 
Member#: 135812
Join Date: Dec 2006
Chapter/Region: NESIC
Location: Griswold, CT
Vehicle:
90 Miata
04 Evo Rally Car

Default Rear Diff Temp Sensor...

Does anybody ever have a problem with their sensor flickering? My 04 STi has been doing this for a little while.. I am thinking it is wiring, as sometimes it will come on, sometimes it will flicker... it is totally random, and sometimes it is within a minute or two sometimes its not for awhile.

I thought I remembered seeing somethign about somebody saying a loose ground wire somewhere, but I dont recall... Anybody have any more info?

And i KNOW my diff has fluid in it, & it has ZERO signs of leaks/weaps/drips.
* Registered users of the site do not see these ads.
nperkins is offline   Reply With Quote
Old 07-25-2008, 07:51 AM   #2
nperkins
Scooby Specialist
 
Member#: 135812
Join Date: Dec 2006
Chapter/Region: NESIC
Location: Griswold, CT
Vehicle:
90 Miata
04 Evo Rally Car

Default

bump... any assistance?
nperkins is offline   Reply With Quote
Old 07-25-2008, 11:01 AM   #3
WRXbluJ
Scooby Specialist
 
Member#: 69161
Join Date: Aug 2004
Chapter/Region: MWSOC
Location: SE Michigan
Vehicle:
02 Bugeye, 05 STi
14 Forester

Default

My wife's STi just started doing this last night. She picked up a screw in the pass tire, so it was low on air. I thought that was causing it, but even after it was repaired the light is still flickering.

My first guess is something electrical, it just happened to coincide with the low tire pressure on one side. Looks like I know what I will be working on this weekend.
WRXbluJ is offline   Reply With Quote
Old 07-26-2008, 01:50 PM   #4
DS1
Vendor
 
Member#: 111780
Join Date: Apr 2006
Chapter/Region: MWSOC
Location: Schaumburg, IL
Default

Check the terminals on the sensor and connector, sometimes they get a little corrosion on them. Also check the ground terminal for corrsion.

Hope that helps

-Dylan @ DS1
DS1 is offline   Reply With Quote
Old 07-26-2008, 02:43 PM   #5
WRXbluJ
Scooby Specialist
 
Member#: 69161
Join Date: Aug 2004
Chapter/Region: MWSOC
Location: SE Michigan
Vehicle:
02 Bugeye, 05 STi
14 Forester

Default

The ground terminal directly above the sensor was rusted pretty badly. I would have liked to take that off and clean it, but there is no way of getting that bolt off without dropping the diff, so I just cleaned it with a small wire brush and sandpaper then cleaned the wire as best I could. So far so good, but I am not impressed with that ground location so I am sure I will be either relocating or coming up with a better connection in the future. Probably next spring after another round of salt and snow....
WRXbluJ is offline   Reply With Quote
Old 07-26-2008, 02:51 PM   #6
nperkins
Scooby Specialist
 
Member#: 135812
Join Date: Dec 2006
Chapter/Region: NESIC
Location: Griswold, CT
Vehicle:
90 Miata
04 Evo Rally Car

Default

hmm... i haven't climbed underneath to look yet. Think its possible to just cut the ground wire and move it?
nperkins is offline   Reply With Quote
Old 07-26-2008, 04:02 PM   #7
DS1
Vendor
 
Member#: 111780
Join Date: Apr 2006
Chapter/Region: MWSOC
Location: Schaumburg, IL
Default

I wouldn't cut it, but you can move it as long as it's to a clean ground.

-Dylan @ DS1
DS1 is offline   Reply With Quote
Old 07-27-2008, 12:31 AM   #8
WRXbluJ
Scooby Specialist
 
Member#: 69161
Join Date: Aug 2004
Chapter/Region: MWSOC
Location: SE Michigan
Vehicle:
02 Bugeye, 05 STi
14 Forester

Default

Quote:
Originally Posted by nperkins View Post
hmm... i haven't climbed underneath to look yet. Think its possible to just cut the ground wire and move it?
Just clean it and you will be fine.
WRXbluJ is offline   Reply With Quote
Old 07-27-2008, 12:27 PM   #9
Deathrin
Scooby Newbie
 
Member#: 165728
Join Date: Dec 2007
Chapter/Region: MWSOC
Location: Bloomington, MN
Vehicle:
2005 Imperza WRX sti
Blue

Default

I had this issue acouple months ago on my 05, the wiring had sercum to the elements ended up just replacing the whole sensor, the car was still just barly under warrenty but if i remeber from the invoice the sensor wasnt that expensive
Deathrin is offline   Reply With Quote
Old 10-13-2008, 12:23 PM   #10
TRAPSTI
Scooby Newbie
 
Member#: 83312
Join Date: Mar 2005
Chapter/Region: NESIC
Location: Buffalo, NY
Vehicle:
05 WRX STi
CGM

Default

I having same issue. I bought a new sensor last night, $93. I'll keep you posted.
TRAPSTI is offline   Reply With Quote
Old 10-15-2008, 05:35 PM   #11
wuuusaa
Scooby Specialist
 
Member#: 92894
Join Date: Aug 2005
Chapter/Region: International
Location: Running away from Polar bears
Default

Quote:
Originally Posted by TRAPSTI View Post
I having same issue. I bought a new sensor last night, $93. I'll keep you posted.
What dealership? Cause they want like $170.00 for a new temp sensor where I live.
wuuusaa is offline   Reply With Quote
Old 10-15-2008, 06:28 PM   #12
TRAPSTI
Scooby Newbie
 
Member#: 83312
Join Date: Mar 2005
Chapter/Region: NESIC
Location: Buffalo, NY
Vehicle:
05 WRX STi
CGM

Default

TRAPSTI is offline   Reply With Quote
Old 10-15-2008, 08:50 PM   #13
wuuusaa
Scooby Specialist
 
Member#: 92894
Join Date: Aug 2005
Chapter/Region: International
Location: Running away from Polar bears
Default

Cool mucho gracias... their cheaper then Subarugenuine parts on alot of things.
wuuusaa is offline   Reply With Quote
Old 10-27-2008, 09:26 PM   #14
TRAPSTI
Scooby Newbie
 
Member#: 83312
Join Date: Mar 2005
Chapter/Region: NESIC
Location: Buffalo, NY
Vehicle:
05 WRX STi
CGM

Default

Spent $93 on a new sensor and it did nothing to rid this problem. I got fed up and cut the ground wire off to find it was a corroded spade lug- I had no idea it was supposed to disconnect. I wire brushed the terminal and crimped on a new spade plug. the stupid light is GONE!!!! sweet:tup:

Diagnostic hint: resistance between ground terminal and sensor case should be < 1 ohm anything more there's too much crap under there, clean it up!
TRAPSTI 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
WTB: STI Rear Diff Temp Sensor sonicsam Private 'Wanted' Classifieds 0 12-23-2008 12:37 PM
WTB: STI Rear diff temp sensor jnorth85 Private 'Wanted' Classifieds 4 03-21-2008 01:29 PM
WTB Vendors or others STI Rear diff temp sensor ljaviation Private 'Wanted' Classifieds 3 02-29-2008 10:47 AM
WTB: STi rear diff temp sensor stizzer Private 'Wanted' Classifieds 4 01-21-2007 07:51 PM
wtb: STi rear diff temp sensor Bullitt 2496 Private 'Wanted' Classifieds 0 02-27-2006 08:04 PM


All times are GMT -4. The time now is 10:41 AM.


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.