Welcome to the North American Subaru Impreza Owners Club Tuesday September 2, 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 > 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 02-25-2006, 05:08 PM   #1
98subyrezaRS
Scooby Newbie
 
Member#: 89505
Join Date: Jun 2005
Location: Brasher Falls, NY
Vehicle:
1998 Impreza 2.5 RS
Black Diamond Pearl

Default hmmm...smoke/steam coming out of radiator...help?

ok this is really weird. i have a 98 2.5 rs, and there is alot of smoke/steam coming out of the radiator when i stop. it seems to do it more when its wet or snowing out, but it's not normal because there is ALOT of it. i have brand new HG's, not overheating, not losing coolant, just had the radiator pressure tested and its fine, i have and injen CAI but there is a waterproof pre-filter on it for the winter. nothing is wrong with the car at all it run perfect, but when i stop it does this. anyone have any ideas or more questions, i'd love the help
* Registered users of the site do not see these ads.
98subyrezaRS is offline   Reply With Quote
Old 02-25-2006, 05:59 PM   #2
98subyrezaRS
Scooby Newbie
 
Member#: 89505
Join Date: Jun 2005
Location: Brasher Falls, NY
Vehicle:
1998 Impreza 2.5 RS
Black Diamond Pearl

Default

also, i have the knocking noise that is semi normal on cold engine, but could my timing belt tensioner be bad? and does that have anything to do with the smoke? i have no idea....the knocking seems to go away mostly after warming up, but it miught not go away completely, not sure
98subyrezaRS is offline   Reply With Quote
Old 02-26-2006, 01:14 PM   #3
98subyrezaRS
Scooby Newbie
 
Member#: 89505
Join Date: Jun 2005
Location: Brasher Falls, NY
Vehicle:
1998 Impreza 2.5 RS
Black Diamond Pearl

Default

someone help?
98subyrezaRS is offline   Reply With Quote
Old 02-26-2006, 01:27 PM   #4
fourbyman
Scooby Newbie
 
Member#: 100444
Join Date: Nov 2005
Default

on my 98 it would also do that, on mine it was the front main seal leaking. Does it smell like coolant?
fourbyman is offline   Reply With Quote
Old 02-26-2006, 09:20 PM   #5
awesome2.5rs
Scooby Newbie
 
Member#: 96154
Join Date: Sep 2005
Chapter/Region: MWSOC
Location: Beecher, IL
Vehicle:
98 2.5RS
Red

Default

Does it smell like coolant, are you ever seeing any fluid of anykind underneath, how is the level of your other fluids? Check all of those before it may become too late depending on the problem :-\

Billy
awesome2.5rs is offline   Reply With Quote
Old 02-27-2006, 12:54 PM   #6
98subyrezaRS
Scooby Newbie
 
Member#: 89505
Join Date: Jun 2005
Location: Brasher Falls, NY
Vehicle:
1998 Impreza 2.5 RS
Black Diamond Pearl

Default

yea it does smell like coolant, but im not losing any. what will it do if its too late...i had my front seal and both cam seals done about 5000 miles ago, along with the timing belt...so i really doubt its those. i'll take anything though, whats going on here??

Last edited by 98subyrezaRS; 02-27-2006 at 06:47 PM.
98subyrezaRS is offline   Reply With Quote
Old 02-27-2006, 06:47 PM   #7
98subyrezaRS
Scooby Newbie
 
Member#: 89505
Join Date: Jun 2005
Location: Brasher Falls, NY
Vehicle:
1998 Impreza 2.5 RS
Black Diamond Pearl

Default

come on scooby specialists...anything? im lost here
98subyrezaRS is offline   Reply With Quote
Old 02-28-2006, 12:18 PM   #8
98subyrezaRS
Scooby Newbie
 
Member#: 89505
Join Date: Jun 2005
Location: Brasher Falls, NY
Vehicle:
1998 Impreza 2.5 RS
Black Diamond Pearl

Default

bump...
98subyrezaRS is offline   Reply With Quote
Old 02-28-2006, 12:23 PM   #9
b4wantab
Scooby Specialist
 
Member#: 21293
Join Date: Jul 2002
Chapter/Region: MWSOC
Location: Oak Park, IL
Vehicle:
05 OB Black Bean
1969 W-30

Default

You have a leak.

Was the system pressure tested when it was warm? I know there is pressure in the system when it is hot so you have to be careful opening it up, but seals expand when hot/warm and they dynamics change. Try testing when the system is warm. I have seen a pin hole leak in a water pump spray an almost invisible stream of coolant onto the radiator and smoke. When the system was cold it wouldn't get a drip at the seal when pressured for 30 minutes+. Not even enough to register as loosing coolant but it was. Just a thought.

Peace,

Greg
b4wantab is offline   Reply With Quote
Old 02-28-2006, 01:52 PM   #10
awesome2.5rs
Scooby Newbie
 
Member#: 96154
Join Date: Sep 2005
Chapter/Region: MWSOC
Location: Beecher, IL
Vehicle:
98 2.5RS
Red

Default

I believe you can also pressure test the system with the engine running....this would make it slightly safer....as you don't have to remove a hot cap. Just be careful to relieve the pressure test pressure before you remove it off the radiator neck.

Hopefully you figure out something soon. As long as you keep an eye on your coolant level, and other fluid levels....it shouldn't be bad. Don't let it get too low, as you will roast your motor if the coolant is gone!

Billy
awesome2.5rs is offline   Reply With Quote
Old 02-28-2006, 02:52 PM   #11
mrpedal
Scooby Newbie
 
Member#: 71361
Join Date: Sep 2004
Chapter/Region: BAIC
Location: SFBay
Vehicle:
2000 Impreza 2.5RS
silver

Default

FWIW, here's a nice LINK to the rs25 sticky on cooling system stuff.
mrpedal is offline   Reply With Quote
Old 02-28-2006, 03:05 PM   #12
98subyrezaRS
Scooby Newbie
 
Member#: 89505
Join Date: Jun 2005
Location: Brasher Falls, NY
Vehicle:
1998 Impreza 2.5 RS
Black Diamond Pearl

Default

thanks alot guys, do i have to take my car somewhere to get this done or can i do it....and if so what do i need for it. oh and if its leaking then its the water pump? or is there other places it could be leaking...i dont need a whole new radiator do i? thanks again
98subyrezaRS 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
So whats burning when smoke is coming out of exhaust... WolfInSheepsCLothing Factory 2.0L Turbo Powertrain 19 07-04-2008 11:34 PM
help smoke coming out of hood scoop ? phat pat Factory 2.0L Turbo Powertrain 7 08-04-2004 03:43 PM
Uhh... smoke coming out of my hood vent.. Clutch? Siper2 New England Impreza Club Forum -- NESIC 14 06-10-2002 10:39 AM
Smoke or exaust coming out of my turbo??? dgp Factory 2.0L Turbo Powertrain 3 04-10-2002 03:42 AM
Smoke/Steam coming out of vents?? HonduhEater Factory 2.0L Turbo Powertrain 6 07-24-2001 06:03 PM


All times are GMT -4. The time now is 10:22 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.