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Old 07-29-2003, 09:33 PM   #1
cashew
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02 Impreza TS
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Default Air Flow in car intermitently impaired

2002 Impreza wagon
Can hear the fan at different speeds. Sounds like it is working O.K., but the volume of air is pathetic. Real hot right now!
This is a very intermitent problem and after letting the car sit stopped for a while, it is now working again. It happened once in the winter as well. Initial call to dealer service indicated I might be a total moron (not turned the right knob) and he had never heard of it. Any ideas?
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Old 07-30-2003, 05:38 PM   #2
Dr Ken
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2000 RS (GME)
SilvAr

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Any difference between recirculated/fresh air setting or even between defrost v etc ? I'm thinking maybe the 'baffle/valve' which directs air between the two settings may be incompitant or not fully clicking to position. If it gets lazy and sits between its full extremes, the ducts are partly occluded. I'm not sure if the pliability or demensions of these componants would vary with temperature to behave as you described.... but that's my best guess.
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Old 07-30-2003, 09:38 PM   #3
cashew
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Thanks for your interesting opinion. It made no difference on fresh or recirculated or on the various location settings. The only constant was that the volume of air was extremely low.
I really appreciate any opinions especially since the dealer wanted to keep the car for 2 or 3 days which seems a bit odd to me?
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Old 07-30-2003, 11:08 PM   #4
Dr Ken
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Okay, so all four-speeds of the fan work, but the air flow remains low. This has to be an occlusive problem -- either of outlet or inlet or anywhere in between. As the outlets are numerous, its not that. There is no change between the two inlets (inside and outside air), so it's not those. If you're sure that the baffle-valve-thing that clunks one-way or the other for each air intake is properly functional, then you have the odious task of ferreting through the ducts for a potentially unsavory foreign object. A colonoscope is handy for this. But I'm getting a funny vibe from that baffle-valve-thingie... my psychic monkey says it's not working right .
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Old 07-31-2003, 12:50 AM   #5
RawCode
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Maybe you need to change your airfilter.

Not the case if it is intermittant.

RawCode
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Old 07-31-2003, 08:55 AM   #6
Mulder
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If this happens when the AC is on, and has been running for a while, it could be the evaporator freezing up and the ice obstructing the airflow. This is not an uncommon problem and there is a TSB from Subaru for it on the '02s.
However the fact that you mentioned it happened in the winter indicates it may be something else as you wouldn't be using AC then.
Just a thought.
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