Welcome to the North American Subaru Impreza Owners Club Wednesday July 30, 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 > Service & Maintenance

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 12-08-2005, 10:29 AM   #26
IIdiceII
Scooby Guru
 
Member#: 90438
Join Date: Jul 2005
Chapter/Region: Tri-State
Location: New York
Default

Feel your balls, squeeze your balls to see if you have cancer...

Thats what this thread reminds me of, Tom Green.
* Registered users of the site do not see these ads.
IIdiceII is offline   Reply With Quote
Old 12-08-2005, 11:05 PM   #27
Mike Wevrick
RIP 1/19/64 - 7/23/11
Scooby Guru
 
Member#: 24654
Join Date: Sep 2002
Chapter/Region: NESIC
Location: saraseager.com
Vehicle:
1957 Taggart Comet
atlasshruggedpart1.com

Default

pour in a bit, burp upper hose, pour in bit, burp upper hose, etc, etc. Took me about 30 minutes but no air pockets afterwards and no overheating.
Mike Wevrick is offline   Reply With Quote
Old 05-01-2006, 11:03 AM   #28
Phy6
Scooby Specialist
 
Member#: 2219
Join Date: Aug 2000
Chapter/Region: MAIC
Location: TeH MAIC
Vehicle:
2007 Exige S
Aspen White

Default

This thread is priceless (along with Unabomber's). I just replaced mt hoses with new Samco ones and flushed the radiator....i guess i got a lot of air in there, cause the temp was up to 2/3!
An interesting thing....when i turned on the heater it got really hot at first, then by the time I went to park it was no-so-hot. Usually it stays hot the whole time--burning hot.
Phy6 is offline   Reply With Quote
Old 05-04-2006, 12:08 PM   #29
Bonzo
Scooby Specialist
 
Member#: 2307
Join Date: Sep 2000
Chapter/Region: MWSOC
Location: West of Rd Am
Default

never mind.

Last edited by Bonzo; 05-04-2006 at 03:16 PM.
Bonzo is online now   Reply With Quote
Old 12-18-2006, 11:14 AM   #30
ScuubyT
Scooby Newbie
 
Member#: 38243
Join Date: Jun 2003
Chapter/Region: MAIC
Location: Northern, VA
Vehicle:
2004 Impreza WRX
WR Blue Pearl

Default

this may not matter, but is there any benefit to burping the radiator first and then closing that up and burping the near-turbo cap, or vice-versa? I have to replace my hoses tonight so I want to make sure I do my best to get all the air out.
ScuubyT is offline   Reply With Quote
Old 01-07-2007, 08:09 PM   #31
ascheier
Scooby Specialist
 
Member#: 121031
Join Date: Jul 2006
Chapter/Region: RMIC
Vehicle:
1999 RHD Legacy Wgn
Green

Default

OK, so I'm getting overheating at idle. Never happens while moving, and it goes away when I start moving. I haven't checked my fans yet but I will soon. I want to burp the system first, since I have reason to believe I have an air pocket..

I replaced my turbo and spilled about a tablespoon of coolant, didn't give it a second thought, and put it back together. SO, how do we burp the system if we DO NOT want to add coolant? I just want to remove air. So let me get this straight.

1. Idle
2. Take turbo reservoir coolant cap off when it starts getting hot
3. Repeat?

Do I use the turbo reservoir or the plastic one? Do you have any idea how hot the turbo reservoir would be if my car is overheating? I'd burn my hand ! Please let me know what's up.
ascheier is offline   Reply With Quote
Old 01-07-2007, 08:25 PM   #32
thrdeye
Scooby Specialist
 
Member#: 24569
Join Date: Sep 2002
Chapter/Region: South East
Location: East Tennessee
Vehicle:
2011 Impreza WRX
SWP

Default

Quote:
Originally Posted by ascheier View Post
OK, so I'm getting overheating at idle. Never happens while moving, and it goes away when I start moving. I haven't checked my fans yet but I will soon. I want to burp the system first, since I have reason to believe I have an air pocket..

I replaced my turbo and spilled about a tablespoon of coolant, didn't give it a second thought, and put it back together. SO, how do we burp the system if we DO NOT want to add coolant? I just want to remove air. So let me get this straight.

1. Idle
2. Take turbo reservoir coolant cap off when it starts getting hot
3. Repeat?

Do I use the turbo reservoir or the plastic one? Do you have any idea how hot the turbo reservoir would be if my car is overheating? I'd burn my hand ! Please let me know what's up.
Take teh cap off the turbo reservior, start teh car and let it get up to temp. Let it idle till the fans kick on. make sure you have the heat on.
thrdeye is offline   Reply With Quote
Old 04-05-2007, 02:51 PM   #33
Davidwrx
Scooby Newbie
 
Member#: 141028
Join Date: Feb 2007
Location: Atlanta, GA
Vehicle:
2002 WRX Wagon
WRB

Default

I haven't seen discussion of opening the radiator air bleeder? Is this being done in all cases and just not being mentioned or is it being skipped and causing some issues.

Also, Is there a picture of the drain plugs for the engine? Is this normally done on a simple coolant replacement?

I will be changing my coolant for the first time and wanted all the tips I can get.

BTW, I have an 02 WRX.

Last edited by Davidwrx; 04-05-2007 at 03:04 PM.
Davidwrx is offline   Reply With Quote
Old 04-05-2007, 03:42 PM   #34
Phy6
Scooby Specialist
 
Member#: 2219
Join Date: Aug 2000
Chapter/Region: MAIC
Location: TeH MAIC
Vehicle:
2007 Exige S
Aspen White

Default

Quote:
Originally Posted by Davidwrx View Post
I haven't seen discussion of opening the radiator air bleeder? Is this being done in all cases and just not being mentioned or is it being skipped and causing some issues.

Also, Is there a picture of the drain plugs for the engine? Is this normally done on a simple coolant replacement?

I will be changing my coolant for the first time and wanted all the tips I can get.

BTW, I have an 02 WRX.
I'm not sure what you mean by the radiator air bleeder (my car came with an aftermarket radiator).
  1. Fill the core. I wouldn't bother opening anything on the radiator unless the radiator core has air in it. Fill that up first.
  2. Fill the upper tank. At this point your upper hose still has air in it, and if you've really drained the system, there are air pockets in the engine and in your heater.
  3. Start the cool engine with the upper resevoir tank open
  4. as the upper tank starts to sink (because air is making it's way to the top), fill it
  5. while filling that upper tank, and with the car running but not HOT, you can rythmically squeeze the upper radiator hose to make the air come out. (You'll feel the difference when it's filled with air)
  6. When you stop seeing air bubbling out of the top resevoir, or when the car is hot, turn on the heat full blast. This may not make air surface right away, so you may need to drive it a few miles. Just bring a 2 liter of distilled water (or whatever) with you and if you see the temp rocket up, you still have air bubbles.
Phy6 is offline   Reply With Quote
Old 04-06-2007, 12:43 AM   #35
Astroguy
Scooby Newbie
 
Member#: 46392
Join Date: Oct 2003
Location: Campbell, CA
Vehicle:
2004 WRX
Black

Default

Just follow what the manual says everyone. Take a look at this thread near the bottom, Jay-R expands a bit on what the manual says, it's pretty simple.

http://forums.nasioc.com/forums/show....php?t=1203387

PS, I followed the directions in the manual (and as described by Jay-R) and it worked perfect.
Astroguy is offline   Reply With Quote
Old 04-11-2007, 09:08 AM   #36
Davidwrx
Scooby Newbie
 
Member#: 141028
Join Date: Feb 2007
Location: Atlanta, GA
Vehicle:
2002 WRX Wagon
WRB

Default

I wanted to share my experience in changing my coolant on my '02 wrx.

First, draining was a mess and slow. I attached a tube to the horizontal tube coming off the drain valve. None came out of that. It came out the hole where the threaded plug is. It came slowly and dripped over the rail under it. Luckily I was able to catch the majority with a pretty wide bucket. After about 1.5 hrs of draining it had pretty much stopped and looked like I had about 2 gallons. I reinstalled the plug and cleaned up.

In filling, I filled very slowly. My thinking was that the more I could get in intitally, the less chance of bubbles / runnig hot later. I spent about 30 minutes putting about 1.5 gallons. It took so long because when you pour into the upper reservoir, it would fill and then slowly gurgle / bubble down. After it got really slow, I decided to try to squeeze the upper hose - burping it. That worked very well and I was able to get the almost additional 1/2 gallon in it. At that point I was very close to having 2 gallons in. I drove for 5 min at 2-3K RPM and then let it cool. I added maybe another 8 oz to get it back to full. During the test drive, the temp never got above the normal point (a little less than half way).

Hope someone finds this helpful.
Davidwrx is offline   Reply With Quote
Old 07-22-2007, 07:14 PM   #37
thrasher
Scooby Specialist
 
Member#: 40579
Join Date: Jul 2003
Chapter/Region: MAIC
Location: Elizabethtown, PA
Vehicle:
2002 WRX Stage 2+
Tuned by IA Performance

Default

Quote:
Originally Posted by Davidwrx View Post
I wanted to share my experience in changing my coolant on my '02 wrx.

First, draining was a mess and slow. I attached a tube to the horizontal tube coming off the drain valve. None came out of that. It came out the hole where the threaded plug is. It came slowly and dripped over the rail under it. Luckily I was able to catch the majority with a pretty wide bucket. After about 1.5 hrs of draining it had pretty much stopped and looked like I had about 2 gallons. I reinstalled the plug and cleaned up.

In filling, I filled very slowly. My thinking was that the more I could get in intitally, the less chance of bubbles / runnig hot later. I spent about 30 minutes putting about 1.5 gallons. It took so long because when you pour into the upper reservoir, it would fill and then slowly gurgle / bubble down. After it got really slow, I decided to try to squeeze the upper hose - burping it. That worked very well and I was able to get the almost additional 1/2 gallon in it. At that point I was very close to having 2 gallons in. I drove for 5 min at 2-3K RPM and then let it cool. I added maybe another 8 oz to get it back to full. During the test drive, the temp never got above the normal point (a little less than half way).

Hope someone finds this helpful.
This was the exact method I used today to refill and heat cycle, and so far, so good. I also replaced my hoses with SAMCO hoses while I was at it, which made it an even messier job, but on the other hand, I probably got more coolant out by removing the bottom hose completely.
thrasher is offline   Reply With Quote
Old 08-02-2007, 10:34 AM   #38
disappear72
Scooby Newbie
 
Member#: 155616
Join Date: Aug 2007
Default

I tried burping last night, and this morning, with the heater on. Took it for a test drive and still overheated. There seemed to be some sort of smoke or maybe steam rising from the radiator intermittently. Only on some of the larger bubbles. I figure it might be the head but I don't want to take it completely apart till I am sure. I did a compression test and all cylinders were even. Any ideas?
disappear72 is offline   Reply With Quote
Old 09-10-2007, 10:36 PM   #39
nardvark
Scooby Newbie
 
Member#: 145108
Join Date: Apr 2007
Vehicle:
2002 Impreza TS
Aspen White

Default

I just changed my coolant last night. I followed the procedure in the manual, with the car up on ramps. I had a 1/2 hose on the drain **** to bring the coolant down to my drain pan, but it didn't matter, because it leaked out of the threaded plug in a roughly equal amount, so I just put a long funnel under the whole drain **** and pointed it at my drain pan. This worked well once I had it situated.

I let it drain for about 45 minutes, but only got about 6 quarts out, including what was in the resovoir. I don't know where the other quart was hiding, but I figured this was good enough and refilled...very...slowly. I filled the resovoir up to the Full line. Then I ran the car at 2,000 rpm for 10 minutes or so and watched it bubble. Once this stopped, I topped it off and called it a night because the temperature gauge was stable.

This morning, after my commute to work and back (only 8 miles round trip), the resovoir had moved from Full to Low, so I topped it off again. Temperature needle has not jiggled at all or gone above the normal operating point, so I assume I don't have any major bubbles left.
nardvark is offline   Reply With Quote
Old 09-11-2007, 10:35 PM   #40
dynamic_klink
Scooby Newbie
 
Member#: 157445
Join Date: Aug 2007
Chapter/Region: MWSOC
Location: Milwaukee, WI
Vehicle:
05 Honda Civic
Black

Default

contrary to what many say, it's best to run the car with the radiator cap off. when it gets warm ,the thermostat will open and suck take in the coolant in the radiator into the block, as that happens, add the coolant into the radiator until it is topped off. the car will not over heat by just running at idle.
dynamic_klink is offline   Reply With Quote
Old 10-09-2007, 07:03 PM   #41
Reddstars
Scooby Newbie
 
Member#: 75804
Join Date: Nov 2004
Chapter/Region: TXIC
Location: Pasadena and DeerPark, Tx!!!!
Vehicle:
2002 WRX sedan
Bukakke White wingless!

Default

I was driving to work the the other morning with the windows down and started smelling a coolant smell. i looked at the temp guage and it was about 3/4 high. Luckily i was only a block away from work. I popped the hood and seen coolant was sprayed all over the engine and etc. I checked the upper radiator hose and it was soft so I then waited till the engine cooled and added coolant back into the resovoir and to the one next to the turbo. Also burped all hoses and etc. I drove the car home later that day with no problems untill i got home. I popped the hood and coolant was again sprayed all over the engine and the resovoir was 1/2 empty. So I thought maybe the thermostat was sticking so I replaced the thermostat and added coolant back burped all lines and etc. Test drove the car and it was fine no leaks no spray no anything. I drove the car to work this morning the day after the thermostat install and popped the hood and coolant sprayed all over the engine once again and resovoir was 1/2 drained once again. Anyone have any ideas on what the problem could be? It looks like the spray is coming directly out of where the top radiator hose connects to the radiator. Any help would be appreciated guys thanks.

Matt
Reddstars is offline   Reply With Quote
Old 10-09-2007, 08:32 PM   #42
jac04
Scooby Specialist
 
Member#: 49895
Join Date: Dec 2003
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
09 Forester
06 Legacy 2.5i Wagon

Default

I would say that you have a small crack in the radiator where the upper hose attaches. It only sprays coolant after things heat up and enough pressure builds to force coolant through the crack. That's my guess.
jac04 is offline   Reply With Quote
Old 10-10-2007, 05:47 PM   #43
Reddstars
Scooby Newbie
 
Member#: 75804
Join Date: Nov 2004
Chapter/Region: TXIC
Location: Pasadena and DeerPark, Tx!!!!
Vehicle:
2002 WRX sedan
Bukakke White wingless!

Default

Yeah i will check for external cracks tonight. Whats the best way? Iwas thinking running the car and spraying soapy water on the radiator and etc once it heats up. Any other suggestions?
Reddstars is offline   Reply With Quote
Old 12-01-2007, 11:48 AM   #44
NewShockerGuy
Scooby Specialist
 
Member#: 40736
Join Date: Jul 2003
Chapter/Region: MAIC
Location: Pittsburgh, PA / FairFax, VA
Vehicle:
2005 WRX STI
Aspen White

Arrow

Ok so I am about to do this because when I changed the upper radiator hose I lost a lot of coolant.
I filled it back up to the FULL in the overflow tank but now it's below LOW..

So to clarify. Upper radaitor cap is near the turbo and lower radiator cap is on the actual radiator right?

I want to take the cap off by the turbo turn the car on and let it idle as I fill coolant up? While it's still idleing I want to them squeeze the radiator hose to force air out?

Does that seem right?

Sorry this is my first time doing it.

-Nigel
NewShockerGuy is offline   Reply With Quote
Old 12-01-2007, 01:50 PM   #45
NewShockerGuy
Scooby Specialist
 
Member#: 40736
Join Date: Jul 2003
Chapter/Region: MAIC
Location: Pittsburgh, PA / FairFax, VA
Vehicle:
2005 WRX STI
Aspen White

Arrow

Welp I took of the cap to the upper radaitor , near the turbo... and it was LOW... so I filled it, and I also squeezed the radiator hose... and in fact it was ALL air, I was surpised. My temps would be at 170-190 for water temp and now they are at 130 which is excelllent.

My over flow tank is now at the FULL line but does it pull from that tank as well... I am worried that it might overflow?

I keep squeezing the hose though and i still hear a swooshing somewhat noise...

Can this be done when the car is off or does it need to be on with the upper radiator cap off?

-Nigel
NewShockerGuy is offline   Reply With Quote
Old 12-03-2007, 02:07 AM   #46
holdtight bp
Scooby Newbie
 
Member#: 35066
Join Date: Apr 2003
Chapter/Region: MAIC
Location: Maryland
Vehicle:
2002 WRX Wagon
WR Blue

Default

There is no way to get 100% of the air out of the system. Of course a lot of air is a problem but if your temps are within the normal range then you are OK. Once you fill the radiator through the hose put the hose on and fill the small tank. You can run the car with the cap off to get more air out. However you will need to drive around the block to get the pump to really put pressure in the system. Put the cap on before you drive around the block. Then go back home let the car cool open the cap and add more coolant. I did this twice and I was good. The first time I did not know and was on my way back home from Home Depot and my temps went up. I stopped the car waited a while and drove home slowly (I was 2 blocks away). You can still squeeze the hose if you want but be careful when it gets hot. Of course turn the heater on but I like to do this once the thermostat is open (fan on). If you turn the heater on before that you are just cooling off your coolant. The heater is a radiator in your car remember that. Fill the reservoir to the full line. Be sure to open the cap and check you level the next morning just to be sure (in the small tank, If you cannot see the level in your reservoir than you need to clean off that dirty thing). Also this will have you looking under the hood and spotting any leaks. I like to change clamps if they look rusty (oem).
holdtight bp is offline   Reply With Quote
Old 01-01-2008, 09:08 PM   #47
sovereign
Scooby Newbie
 
Member#: 105309
Join Date: Jan 2006
Vehicle:
2006 WRX TR Sedan

Default

great thread!!!

I'm at 24k miles and looking to change my coolant soon and this thread will help make sure I do a good job!
sovereign is offline   Reply With Quote
Old 01-02-2008, 02:31 AM   #48
bzbuzz
Scooby Specialist
 
Member#: 116052
Join Date: May 2006
Chapter/Region: MWSOC
Location: IL 수바루!
Vehicle:
2011 STI ( Sold )
WRB

Default

last time i was chaning coolant, if you run the car w/ cap off.. the coolant will expand and spilt..just let you know...watch out..
bzbuzz is offline   Reply With Quote
Old 01-22-2008, 12:18 AM   #49
Lil_Red_Raven
Scooby Newbie
 
Member#: 154976
Join Date: Jul 2007
Cool

We'll having had this problem before on my 2003 WRX...You probably split the radiator right at the top where the top meets the middle of the radiator..I was not so lucky as mine let go 30 miles from the nearest cactus..let a lone a shop with a mechanic that had more then one tooth. 3 days and $1,000.00 bucks later...Thankfully the car was still under warranty.

As far as the rest of the thread..great info..I just had my Turbo replaced (can't imagine why? 7900 rpm on a car with 116,000 miles and it let go, oh well) and one of the coolant lines was not secured and blew off, draining most of the fluid. I thought I had gotten it filled but had gotten an air bubble..filled it slowly burped the upper hose..ran it with the heater, let it cool re-burped it and it's running great.

Thanks for the info

Quote:
Originally Posted by Reddstars View Post
I was driving to work the the other morning with the windows down and started smelling a coolant smell. i looked at the temp guage and it was about 3/4 high. Luckily i was only a block away from work. I popped the hood and seen coolant was sprayed all over the engine and etc. I checked the upper radiator hose and it was soft so I then waited till the engine cooled and added coolant back into the resovoir and to the one next to the turbo. Also burped all hoses and etc. I drove the car home later that day with no problems untill i got home. I popped the hood and coolant was again sprayed all over the engine and the resovoir was 1/2 empty. So I thought maybe the thermostat was sticking so I replaced the thermostat and added coolant back burped all lines and etc. Test drove the car and it was fine no leaks no spray no anything. I drove the car to work this morning the day after the thermostat install and popped the hood and coolant sprayed all over the engine once again and resovoir was 1/2 drained once again. Anyone have any ideas on what the problem could be? It looks like the spray is coming directly out of where the top radiator hose connects to the radiator. Any help would be appreciated guys thanks.

Matt
Lil_Red_Raven is offline   Reply With Quote
Old 04-14-2008, 05:45 PM   #50
GeneralTJI
Scooby Specialist
 
Member#: 152680
Join Date: Jun 2007
Location: s366 Duramax self built/tuned
Vehicle:
I Parted out WRX
for my Pilots License :)

Default

Out of curiosity, after letting the motor cool down, and then opening the cap on the resavoir tank, did any of you have a little pressure built up that was released when you opened the cap?
GeneralTJI 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
FS : 04 WRX DP. UP, Air Box Intake System, Alternator Cover Steeldon Engine/Power/Exhaust 13 01-27-2011 07:21 PM
Coolant temp up but oil temp is the same? ogboot Newbies & FAQs 5 04-15-2009 10:57 PM
HELP with air pocket. massdrewski Normally Aspirated Powertrain 7 11-29-2008 06:33 PM
Air pocket in cooling system. Questions. Obsessive Factory 2.0L Turbo Powertrain 12 02-22-2008 08:51 AM


All times are GMT -4. The time now is 02:01 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.