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Old 11-28-2008, 09:22 AM   #1
Don Arm
Scooby Specialist
 
Member#: 17520
Join Date: Apr 2002
Chapter/Region: MWSOC
Location: Indianapolis now Orlando
Vehicle:
2002 Impreza WRX
Midnight

Default HVAC system diagnosis help

Last night I turned the defrost (heat) on and the INSIDE of the damn windows started to fog up. I also thought I smelled antifreeze when I had the regular heater running right before that. I know that 2 years ago I had a heater core leak and rather going through the whole mess of removing the dash to get to the core I used the Subaru stopleak and it fixed the problem.
Another piece of information, this started happening a few days ago when I turned the defrost on I heard what sounded like a hissing from behind the dash. I know that in the past I would hear this sound right after turning the AC or defrost on and it would go away after a few seconds, but this time the sound kept going.
Any thoughts or help, it's going to suck big time if it's something major this close to X-mas.
I tried looking through the factory manual CD but the diagnostic portion stinks.

Thanks
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Old 11-28-2008, 01:19 PM   #2
Cougar4
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Member#: 53443
Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:
2001 LL Bean Outback
Winestone

Default

From what you say it seems to me that the the heater core is leaking again. Hopefully the problem is just due to a bad connection to the core. The car dosen't seem old enough to have a bad core. Someone is going to have to get into the air box and check it out.
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Old 11-28-2008, 02:58 PM   #3
flstffxe
Scooby Specialist
 
Member#: 155358
Join Date: Jul 2007
Location: Coon Rapids, MN
Vehicle:
2008 Forester
Steel Silver

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Quote:
Originally Posted by Don Arm View Post
I know that 2 years ago I had a heater core leak and rather going through the whole mess of removing the dash to get to the core I used the Subaru stopleak and it fixed the problem.
I agree with Cougar4 on the heater core leak. In my opinion the stop leak is just a band-aid, not a fix. Time to do it right and take it apart to see what you are dealeing with.
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