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Old 08-16-2007, 06:30 PM   #1
RallyBlue
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Member#: 69323
Join Date: Aug 2004
Chapter/Region: MWSOC
Location: Indiana, near Cincy
Vehicle:
2004 WRX
82 BRAT

Default Losing Coolant

So this started all of a sudden while I was driving down the freeway to work one morning. My car suddenly ran hot and I had to turn on the heat and limp it home while running in the upper part of my temp guage. I figured i hit an air pocket and changed the coolant, it did the same thing again a few days later, I looked and no coolant in the res. I had my friend who is a subaru mechanic look at it and said my coolant res was broken at the filler neck. Fine got a new one. Still happened. This is what happens, when the engine is up to operating temp and after driving it for a few min i pop the hood and take a look, it seems my coolant is dissapearing out of the overflow its like cooland gushes out of it when I shut off the engine and the hose going into the overflow is boiling out steam. I have looked over the car up and down and I dont see ANY leaks, steam or that sweet coolant smell. Just gushing out the overflow. Does anyone have any suggestions on to what my prob might be

04 WRX 50k miles
I've had a 30R on it since it had 15k
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Old 08-17-2007, 02:06 AM   #2
austenf740
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Join Date: Jul 2002
Location: Austin,TX
Vehicle:
02 WRB WRX
98 RS

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Bad radiator cap?
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Old 08-17-2007, 04:01 AM   #3
kurtdaniel
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Default

You may be evaporating your water out of your coolant causing level to be lower. I recommend flushing your coolant and refill it with new coolant and see what that does. Check the drain on the radiator and all your hose connections. Also check your heater core it is up under the dash on the passenger side and see if it is leaking an easy way to tell is if the passenger side floor is wet. Or if you have a sweet smell in your cab of your truck. You know the smell of hot coolant. That is what I recommend. But someone else may have more info on this.
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Old 08-17-2007, 04:43 AM   #4
RallyBlue
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Location: Indiana, near Cincy
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82 BRAT

Default

Well I have checked everything stated above and nothing helped.
A friend did tell me that it might be a slight headgasket leak, and that a small amount of exhaust is leaking in the coolant jacket, I have been running a 30R rotated turbo at 20 psi on a stock 205 for over 30k so it just might be time
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Old 08-17-2007, 12:22 PM   #5
StarDogChampion
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2001 Impreza RS
2002 WRX, 2012 535i

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If it is boiling out of the tank, Your thermostat is probably stuck closed. That is the exact same thing that happened to me with one of my cars. I replaced it with the Crucial Racing fail safe thermostat that when it breaks, it stays open so it doesnt overheat, and opens earlier.
http://www.crucialracing.com/products/coolsafe.php
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Old 08-17-2007, 12:58 PM   #6
linsavy
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Likely it's your headgaskets. I have been through it, twice.
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Old 08-17-2007, 07:27 PM   #7
jevera2k
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Location: Alabama
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blue

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Mine is doing something similar but my car when it gets hot only one fan is turning on I dont really know if this is nomal, but I will replace the thermostat and let you know what happens then, good luck.
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Old 08-17-2007, 08:21 PM   #8
MasterKwan
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Yeah, classic HG symptoms. Boiling recover tank isn't really boiling, it's combustion gases from the blown HG. I'd get it checked. They can check the coolant for combustion gases.
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Old 08-17-2007, 11:49 PM   #9
fastnoypi
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Chapter/Region: Tri-State
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MY01 EJ207 HTA35r
nothing to see, i'm stock

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go to autozone, borrow a coolant leak down tool...pressurize and find out exactly where its gushing out from . otherwise you're just guessing
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Old 08-18-2007, 03:55 PM   #10
WRXShawn
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Location: Regina, Saskatchewan, Canada
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2002 PPG + FPGreen
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I'm having the same issues. I've idled the car and kept the coolant resevoir topped, but at a certain temp, it starts bubbling from one of the lines (rad to coolant resevoir) and I have to put the cap on. Then the overflow fills up and overflows. If I turn the engine off, the overflow will fairly quickly empty out. WTF?

I'm going to Subaru on Monday to test for exhaust gases in the coolant.
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