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 > 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 02-01-2002, 08:26 PM   #1
ANZAC_1915
Moderator
 
Member#: 456
Join Date: Oct 1999
Chapter/Region: NWIC
Location: Redmond, WA, USA
Vehicle:
2008 Forester XT
Steel Gray Metallic

Default Coolant top up - air pockets?

I think I refilled my WRX coolant too fast --- the header tank should help bleeding but several times today my temp went up to 2/3 and suddenly back down.

I am going to wait overnight and check it cold in the morning.
All the levels are ok. (both in the header tank and the expansion tank).

Do the air pockets eventually get swept out and the system self-bled? Or do I have to drain the whole flippin' thing and refill it really s-l-o-w-l-y.

[I had to drain some coolant as I was fitting the engine block heater (TBird rally coming up).]

Glenn
* Registered users of the site do not see these ads.
ANZAC_1915 is offline   Reply With Quote
Old 02-01-2002, 08:31 PM   #2
hotrod
Scooby Specialist
 
Member#: 14141
Join Date: Jan 2002
Location: 13.239@102.85 @ 5800 ft on 13T
Vehicle:
2002 Impreza WRX
e85forum.net

Default just top it off

Just top the radiator off every time it cools down. It will take 3 or 4 times to get all the air out. Best is to park the car on a slope so the radiator is high, top it off. Be sure the heater is on so you get air out of the heater core.

Larry
hotrod is offline   Reply With Quote
Old 02-01-2002, 08:43 PM   #3
Jademonkey
Scooby Specialist
 
Member#: 9213
Join Date: Aug 2001
Location: My grandma was 6' 6"
Vehicle:
2000 RS
Red

Default

make sure you're engine is cool when you do this..but turn the engine on, open the radiator...and slowly fill until it gets to the top. The water pump circulating water should help get rid of the air in the cooling system.
Jademonkey is offline   Reply With Quote
Old 02-01-2002, 11:33 PM   #4
ANZAC_1915
Moderator
 
Member#: 456
Join Date: Oct 1999
Chapter/Region: NWIC
Location: Redmond, WA, USA
Vehicle:
2008 Forester XT
Steel Gray Metallic

Default

I just checked now and it had slurped up a bunch from the expansion tank, so I topped that up and topped off the header tank.

Glenn
ANZAC_1915 is offline   Reply With Quote
Old 02-02-2002, 09:23 AM   #5
PerformanceAutoSolutions
Former Vendor
 
Member#: 853
Join Date: Feb 2000
Chapter/Region: Tri-State
Location: Deer Park, NY, USA
Vehicle:
2011 STI Sedan
Satin White Pearl

Default

what i do if i serviced the cooling system,i removed the upper radiator hose and fill through the hose until it backs up in the hose,then install the hoes on the radiator,and then fill through the filler neck of the tank on top of the intake manifold.
dave
PerformanceAutoSolutions is offline   Reply With Quote
Old 02-02-2002, 08:37 PM   #6
DuneHopper
Scooby Newbie
 
Member#: 1249
Join Date: Apr 2000
Location: Newark, DE USA
Vehicle:
2000 OBS
White

Default

Just did mine. I refilled the radiator, then warmed the car up w/ the radiator cap off, revving a little, and adding more coolant every time it burped. It took quite a while, like 15 minutes, to stop burping.
DuneHopper is offline   Reply With Quote
Old 02-03-2002, 09:48 AM   #7
Shik
NASIOC Supporter
 
Member#: 132
Join Date: Jul 1999
Chapter/Region: Tri-State
Location: Central PA
Vehicle:
2006 GT Ltd 5spd sdn
2015 WRX 6spd CWP

Default

Dunehopper has it, although with the WRX you pour the coolant in the tank near the turbo.

Leave the cap off and just keep watching and waiting for no more(or very very few) bubbles to pop up. Be patient

And when you do pour the coolant in, try to pour it slowly as not to create alot of unwanted bubbles.

Oh, and make sure your heater is in the HOT position so the heater core gets filled as well at the same time.
Shik is offline   Reply With Quote
Old 02-03-2002, 07:33 PM   #8
cantex
Scooby Newbie
 
Member#: 9611
Join Date: Aug 2001
Location: katy
Default yea

sometimes jacking up the front of the car will remove the bubble as well.
but i recommend what shik said
cantex is offline   Reply With Quote
Old 02-04-2002, 01:40 PM   #9
Coati
Scooby Guru
 
Member#: 9106
Join Date: Aug 2001
Chapter/Region: SCIC
Location: 10 Doors, 2 Scoops!
Vehicle:
2002 WRX Wagon - PSM
2008 STI - Aspen White

Default Re: Coolant top up - air pockets?

Quote:
Originally posted by Glenn Wallace
several times today my temp went up to 2/3 and suddenly back down.
To quote George Costanza "I think it moved!"

You've seen a rare thing, indeed.
Coati is offline   Reply With Quote
Old 02-04-2002, 05:11 PM   #10
ANZAC_1915
Moderator
 
Member#: 456
Join Date: Oct 1999
Chapter/Region: NWIC
Location: Redmond, WA, USA
Vehicle:
2008 Forester XT
Steel Gray Metallic

Default

Quote:
And when you do pour the coolant in, try to pour it slowly as not to create alot of unwanted bubbles.
Yes, I was a bit hasty. One night with the radiator at the high end of the car worked. I topped it up then and it was fine.

If y'all want a picture of a engine block warmer install, let me know. The cable routing on the WRX is a challenge due to header angle.

Glenn
ANZAC_1915 is offline   Reply With Quote
Old 02-11-2002, 01:12 AM   #11
Austin
Scooby Guru
 
Member#: 7089
Join Date: May 2001
Chapter/Region: NWIC
Location: Western Wa
Default

Quote:
Originally posted by Glenn Wallace
If y'all want a picture of a engine block warmer install, let me know. The cable routing on the WRX is a challenge due to header angle.

Glenn
Please post a pic.
Austin is offline   Reply With Quote
Old 02-15-2004, 12:16 AM   #12
shinsain
Scooby Specialist
 
Member#: 51745
Join Date: Jan 2004
Chapter/Region: NWIC
Location: Wenatchee...WA
Vehicle:
LIKE A
BOSS

Default

can this make your temprature gague go crazy?

see thread:

http://forums.nasioc.com/forums/show...hreadid=503134

i'm really going crazy here......

EDIT: fixed it this morning. all good. don't mind me.

although there is one thing....i don't know how some of you arrived at a very complicated answer to this. "jack the car up" "put the coolant in the res. by the turbo"

i think its simpler than that unless there's something i'm missing?

all i did was wait until i could see the temp gague spike, then i would go and relieve the pressure on the reservior by the turbo. then i would tighten it down, rev it to make the bubbles push and wait until the next temp spike and repeat.

i also put the coolant where it is normally supposed to go: in the overflow tank by the radiator. no jacking, tipping, standing on one leg, none of that.

is there some reason for you guys saying all that that i'm not familiar with?

also, i first tried leaving the cap off and waiting for the bubbles, and it didn't work whatsoever. hmm

Last edited by shinsain; 02-15-2004 at 11:22 AM.
shinsain is offline   Reply With Quote
Old 02-15-2004, 12:07 PM   #13
z&cobb
Scooby Specialist
 
Member#: 12344
Join Date: Nov 2001
Chapter/Region: MAIC
Location: Mountains of Maryland
Vehicle:
2002 2JC
blue

Default

You can speed the "burping" process by squeezing the big upper radiator hose repeatedly after each addition of coolant.

You should be able to get 2 gallons (pretty nearly) in this way, make sure the heater controls are on, both when you drain and when you fill.

You shouldn't have to stand on one leg, tip the car on its trunk, or suck on the coolant tank opening.
z&cobb is offline   Reply With Quote
Old 02-23-2004, 02:07 PM   #14
SubaruImpreza_power
Scooby Guru
 
Member#: 13910
Join Date: Jan 2002
Chapter/Region: NESIC
Location: Greenwich, CT
Vehicle:
1997 Legacy outback
blue

Default

SubaruImpreza_power is offline   Reply With Quote
Old 04-20-2004, 12:35 PM   #15
sp00n32
Scooby Newbie
 
Member#: 27582
Join Date: Oct 2002
Location: Wauwatosa, WI
Vehicle:
2002 WRX
WRB

Default

One thing that made draining the coolant easier is to remove the tube that goes to the overflow tank and attach that to the radiator drain spout. This hangs over perfect to your collection bucket.

Or just park on your neighbor’s lawn so you don’t have to use a bucket at all
sp00n32 is offline   Reply With Quote
Old 05-19-2005, 04:48 PM   #16
Cadaver
Scooby Newbie
 
Member#: 59015
Join Date: Apr 2004
Location: Houston
Vehicle:
2004 WRX
Blue

Default

EPA would have a fit if they ever saw the guys in my neighborhood drain it while at the car wash. While its draining, they just wash their car like nothing was going on. Had mind of turning them in, but i'd like my scoobie to stay in one piece and not wind up in some chop shop. LOL
Cadaver is offline   Reply With Quote
Old 08-30-2005, 09:12 PM   #17
thrdeye
Scooby Specialist
 
Member#: 24569
Join Date: Sep 2002
Chapter/Region: South East
Location: East Tennessee
Vehicle:
2011 Impreza WRX
SWP

Default

Just thought I'd bump this thread and give some more info since it's linked in Unabomber's FAQ.

I did a coolant change the other day, which is the second one I have done on my car. First time, went off without a hitch. This one was a bit more frustrating. After I changed the coolant, the car would continuously overheat during my "test drives". At first I though "Oh crap, a head gasket is gone", because I thought I knew EVERYTHING about air being trapped in the system and I thought that I had it all out. I got frustrated last night and parked the car and let it sit. I knew that car ran perfectly befor I started futzing with it, so I gave it another try

I went to Napa today, got some PEAK Global to use for top-off. When I got home, I popped off the cap and just started compressing the upper and lower radioator hoses rapidly. I then could FEEL that there was absolutely NO COOLANT in the upper hose. It was all air. (If there is air in it, it will be VERY easy to squeeze - you will notice it is harder to squeeze as water enters the hose) I started "massaging" the hose and I could feel the coolant start to work it's way into the hose as I made a swushing motion with my hand. I then started the car and heat cycled the engine, letting the fans kick on and off a few times, all the while, I was squishing the hose and topping off the coolant with distilled water and PEAK. Turns out, for whatever reason, a TON of air got into the system this time and that is what caused my problem. I took the car for a drive and the temp needle stayed right where it needed to be.

DON'T GIVE UP! KEEP MASSAGING YOUR HOSES UNTIL YOU GET ALL OF THE AIR OUT! IT MAY TAKE A VERY LONG TIME!!
thrdeye is offline   Reply With Quote
Old 08-31-2005, 07:38 AM   #18
Hayes
Scooby Specialist
 
Member#: 11808
Join Date: Oct 2001
Location: Cape Coral,FL
Default

My manual says fill with coolent and run engine for 5+ minutes at 2500 rpm to purge air. Your manual is your friend so I wonder why so many of us don't read it?
Hayes is offline   Reply With Quote
Old 08-31-2005, 08:46 AM   #19
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 Hayes
My manual says fill with coolent and run engine for 5+ minutes at 2500 rpm to purge air. Your manual is your friend so I wonder why so many of us don't read it?
yes, that is the correct procedure. What you're looking for is the fans to kick on, which will let you know that the thermostat has opened. There should be a significant amount of air come out at that point. However, if you have an 02 WRX or any Subaru that doesn't have a cap on top of the radiator, there is a great liklihood that you will still get air trapped in there.
thrdeye is offline   Reply With Quote
Old 08-31-2005, 09:17 AM   #20
Snoop
Scooby Newbie
 
Member#: 20626
Join Date: Jun 2002
Location: Minnesota
Vehicle:
2002 WRX Wagon
Silver

Default

Heh. I wish I had all these tips when I changed my coolant a month or so ago. I started driving around after my flush and was freaking out when the temperature started approaching the red zone (x3 or so). I wish I had these methods to try way back when. I ended up kind of shaking my cars front end back and forth and that seemed to help too, though. Probably not the easiest way, though.
Snoop is offline   Reply With Quote
Old 08-31-2005, 12:27 PM   #21
craigmp50
Scooby Newbie
 
Member#: 33791
Join Date: Mar 2003
Chapter/Region: Tri-State
Location: Buffalo NY
Vehicle:
2009 WRX
Lightning Red

Default

OK, so I won't get turned in to the EPA, just what do you do with the used coolant if you don't let it drain into the sewer, will they recycle it somewhere?
craigmp50 is offline   Reply With Quote
Old 08-31-2005, 02:40 PM   #22
AndyH
Scooby Specialist
 
Member#: 2133
Join Date: Aug 2000
Chapter/Region: MWSOC
Location: Minneapolis, MN USA
Vehicle:
2005 STi WRB/Gold
2005 S4 Avant

Default

Quote:
Originally Posted by craigmp50
OK, so I won't get turned in to the EPA, just what do you do with the used coolant if you don't let it drain into the sewer, will they recycle it somewhere?
For a location near you that accepts coolant for recyling, go here:
http://www.earth911.org/master.asp?s=ls&serviceid=1

Enter your ZIP code and on the results page(s) look for locations that accept "antifreeze".
AndyH is offline   Reply With Quote
Old 10-10-2005, 03:20 PM   #23
Chris Cuevas
Scooby Specialist
 
Member#: 75547
Join Date: Nov 2004
Chapter/Region: SCIC
Location: San Diego, CA
Vehicle:
2002 WRX
P&P'd VF39+NOS+SRP= PWND!

Default

great thread !
I just changed my radiator hoses and have the problem of overheating on my test drives !
I will go burp the hoses !!

Thanks a million guys !
Chris Cuevas is offline   Reply With Quote
Old 10-10-2005, 03:24 PM   #24
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 Chris Cuevas
great thread !
I just changed my radiator hoses and have the problem of overheating on my test drives !
I will go burp the hoses !!

Thanks a million guys !

yep, burp burp burp and then burp burp burp some more.
thrdeye is offline   Reply With Quote
Old 10-10-2005, 07:23 PM   #25
Chris Cuevas
Scooby Specialist
 
Member#: 75547
Join Date: Nov 2004
Chapter/Region: SCIC
Location: San Diego, CA
Vehicle:
2002 WRX
P&P'd VF39+NOS+SRP= PWND!

Default

This is killing me....
I have burped it twice and still it keeps overheating..

I have massaged the hoses, added coolant, massaged more, added a little more coolant, then test drove. About a mile and a half it spikes close to the H !!!

About to go and do it again !!
Chris Cuevas 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 10:48 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.