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Old 04-26-2004, 06:46 PM   #1
FinalBean
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Member#: 42704
Join Date: Sep 2003
Location: San Francisco
Vehicle:
2003 WRX
MBP

Default air conditioner not working...

It's roasting outside and my AC is dead! There's no way it's out of freon (unless it all leaked out) because one day it was working, the next day it wasn't. The light still comes on, but there's no difference in temp, no change in idle or low-end power, and it doesn't sound like the AC fan ever comes on at all.

I've searched around and people have talked about the Hi/Low test having to do with those blue knobs labelled "H" and "L." What test is this and what does it tell you? One of my AC lines near my TMIC is bent in a bit, but it doesn't seem like it's enough to disrupt flow, unless there's only a tiny little tube inside. Any way I can diagnose whether it's a busted AC unit, or a plugged AC line? The fuse for the AC is fine too, btw. I don't wanna take it to the dealer cuz of all of my mods. Thanks!

John
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Old 04-26-2004, 07:33 PM   #2
Mulder
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Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NYC
Vehicle:
02 WRX
15 WRX/05 GTO

Default

It's entirely possible that it's out of refrigerant (134A, not Freon). There might have been a sudden leak, or a gradual one that finally got to the point where the charge in the system was too low for the compressor to turn on.
Do you have a non-stock TMIC? It's somewhat common for the AC line to rub on these and eventually perforate.
If you don't want to go to a dealer, find a local shop that does AC work and have them put gauges on it to check the charge level, if it's low they'll need to look for leaks.
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Old 04-26-2004, 11:14 PM   #3
vvk
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Member#: 6436
Join Date: May 2001
Location: Holland, PA
Vehicle:
1998 Impreza 2.5RS
BDP

Lightbulb fans

There could be an electric problem with your radiator fans. If the fans don't come on, the A/C will not work either. Do your cooling fans come on when the engine temperature rises?
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Old 04-27-2004, 12:51 AM   #4
FinalBean
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Member#: 42704
Join Date: Sep 2003
Location: San Francisco
Vehicle:
2003 WRX
MBP

Default

Yeah, those fans still come on when the car is hot. But they don't come on anymore when I turn the key forward without the engine starting, and push the AC button. This used to be a nice trick for cooling the car off without leaving the engine running (AC wouldn't turn on, but the radiator fans would), but now, nothing comes on. Anyway, I'm getting it checked out tomorrow. I'll update you guys when I find out. Thanks!

John
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Old 04-27-2004, 03:20 PM   #5
Charlie-III
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Join Date: Dec 2002
Chapter/Region: Tri-State
Location: 07456, North NJ
Vehicle:
1998 Legacy 2.5GT
Silver Sleeper Wagon

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Does the compressor clutch engage when you hit the AC switch?
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Old 04-27-2004, 07:53 PM   #6
Drew888
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Location: Orange County, SoCal.
Vehicle:
2008 LGT Spec-B stg4
Delicious Tuned 336/336

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I'm in SoCal and my WRX is in right now for the same thing.

Several O-Rings leaked and the Evaporator valve was sticking (this part is on order-will be fixed by this Fri.).

One day it worked and the next nothing.

If it is really O-rings then unless somehow installed incorrectly, everyone else should have failing O-rings...***


Drew,

I also have the "turn on the A/C at 3k rpms 'Squeek' that should be fixed also with the A/C repair.
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