Welcome to the North American Subaru Impreza Owners Club Thursday September 18, 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 > Factory 2.0L Turbo 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 10-13-2012, 02:06 PM   #1
Tdaz250
Scooby Newbie
 
Member#: 310744
Join Date: Feb 2012
Chapter/Region: NWIC
Vehicle:
02 WRX
WRB

Default

So it's a stage 2 02 wrx. I replaced the timing belt and water pump. About a month later the radiator took a dump(stock one, car has 112k miles). Replaced it with an aluminum one. Thought it was all good but one day at a stop light I was getting some steam at a red light. Temp was normal so I pulled over and checked it out and coolant was dripping into the exhaust manifold from the upper hose. I had pinched it a little putting the radiator in so I replaced it. All good.

Now 2 weeks later I got steam again and I can't find the source. It's dripping from the little plastic guard that goes over the alternator and compressor...almost like the water pump is leaking ? I can't see a leak anywhere...temp is normal car doesn't overheat. Any suggestions ? Trying to find a source I haven't thought of before I rip everything apart to check the water pump
* Registered users of the site do not see these ads.
Tdaz250 is offline   Reply With Quote
Old 10-13-2012, 08:49 PM   #2
Mishmosh
Scooby Newbie
 
Member#: 45030
Join Date: Oct 2003
Vehicle:
2004 WRX wagon
Platinum silver metallic

Default

Have you replace the upper and lower radiator hoses? Those can get hairline cracks that only manifest themselves when engine is warmed up.
Mishmosh is offline   Reply With Quote
Old 10-13-2012, 10:03 PM   #3
03WRXer
Scooby Newbie
 
Member#: 142905
Join Date: Mar 2007
Default

Quote:
Originally Posted by Tdaz250 View Post
So it's a stage 2 02 wrx. I replaced the timing belt and water pump. About a month later the radiator took a dump(stock one, car has 112k miles). Replaced it with an aluminum one. Thought it was all good but one day at a stop light I was getting some steam at a red light. Temp was normal so I pulled over and checked it out and coolant was dripping into the exhaust manifold from the upper hose. I had pinched it a little putting the radiator in so I replaced it. All good.

Now 2 weeks later I got steam again and I can't find the source. It's dripping from the little plastic guard that goes over the alternator and compressor...almost like the water pump is leaking ? I can't see a leak anywhere...temp is normal car doesn't overheat. Any suggestions ? Trying to find a source I haven't thought of before I rip everything apart to check the water pump

The water might be leaking out from the intake manifold. There is an o-ring near the throttle plate that leaked on mine once. It could also be a hole in the radiator and spraying back towards the motor.

A trick I have used to find these leaks requires getting the motor hotter then you otherwise could while siting there with the hood up looking for a leak. Simply unplug the fans on the radiator, or pull the relay/fuse and let the car run till it gets hot (watch the temp gauge. Get it over half gauge, but be careful not to get it much more them 3/4). It might take a short drive around the block to get it hot enough.

This will increase the pressure in the radiator, and will hopefully make steam, or water start to shoot out the leak.

Be careful not to max out the temp gauge.
03WRXer 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


All times are GMT -4. The time now is 04:47 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.