Welcome to the North American Subaru Impreza Owners Club Friday January 30, 2015
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 > Normally Aspirated Powertrain

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 12-22-2008, 11:29 PM   #1
grafton
Scooby Specialist
 
Member#: 187936
Join Date: Aug 2008
Chapter/Region: MAIC
Location: Fairmont WV
Vehicle:
97 Legacy w/12:1CR
07 WRB STi

Default weird temp gauge behavior

Today on the way home from an inlaws place in 17 deg weather i noticed weird behavior out of the temp gauge, the motor was warming up normally, so i thought, but when i hit above 3500rpms the temp needle dropped like a rock almost strait to C well let the car coast with the clutch pushed in letting the car idle as we cruised along, and the temp gauge started rising. after that i down shifted and ran the motor @ appox 4200 rpm and again the temp needle dropped ,

even took it on the interstate, as long as the revs are below 3500 then the temp gauge warms up to normal operating temp but run it above that and the needle starts to drop and the air blowing from the heater feels like it is not as hot when the needle drops

also when we got home i checked the motor, nothing looked off, the alt. was too hot to hold my hand on without feeling discomfort the upper radiator hose was a little firm with pressure but the entire radiator was cold to the touch

bad rad cap? bad themostat ( the motor heats up *but not overheating at all* below 3500 rpm but not above) bad radator ie. clogged?
* Registered users of the site do not see these ads.
grafton is offline   Reply With Quote
Old 12-23-2008, 12:37 AM   #2
reddevil
Scooby Guru
 
Member#: 64673
Join Date: Jun 2004
Chapter/Region: NWIC
Location: portland
Vehicle:
1990 Legacy wagon
goes 12.387 @ 116.5

Default

Did you check your coolent level?

And I would just replace the thermostat STAT with an OEM.
reddevil is offline   Reply With Quote
Old 12-23-2008, 02:12 AM   #3
grafton
Scooby Specialist
 
Member#: 187936
Join Date: Aug 2008
Chapter/Region: MAIC
Location: Fairmont WV
Vehicle:
97 Legacy w/12:1CR
07 WRB STi

Default

seeing as thats a cheap repair i'll grab one while in advance tomorrow see if that fixes my odd issue never have seen something like this, last time i saw a broken thermostat it would take FOREVER to heat up on my 86 nissan pick up but once it was finished it wouldn't dip down with high revs

think it is possibly stuck partway open?
grafton is offline   Reply With Quote
Old 12-23-2008, 08:43 AM   #4
Guerice
Scooby Newbie
 
Member#: 51519
Join Date: Dec 2003
Chapter/Region: E. Canada
Location: Moncton, NB
Vehicle:
2006 2.5i Wagon
AKA Drtywgn

Default

Had the same problem, the coolant temp sensor is at the top of the engine. So if your missing coolant or dropping some, and airlock will occur around the sensor and thus the sensor wont read right and will frig up your idle.
Guerice 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
How to modify the stock dummy water temp gauge to real water temp gauge? SuperTurbo Normally Aspirated Powertrain 14 02-01-2008 07:38 PM
Is it possible to use a Water Temp Gauge as Intercooler Temp Gauge ? Sausage Electrical & Lighting 6 12-11-2006 02:35 PM
trying to find air temp gauge. before-after intercooler air temp, and two others STEALTH-WRX Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 6 06-10-2003 04:38 PM
Transmission temp gauge idea, Switch to use coolant temp gauge so no dash space taken ciper Transmission (AT/MT) & Driveline 6 06-05-2003 04:54 PM
Weird oil temperature gauge behavior Corn-Picker Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 2 04-01-2002 07:32 PM


All times are GMT -4. The time now is 01:28 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.