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Old 03-05-2012, 01:03 AM   #1
Ndasilva
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Member#: 311112
Join Date: Feb 2012
Chapter/Region: BAIC
Location: Santa Cruz Mountains
Vehicle:
2004 WRX Wagon

Default AC problems 04 WRX

So I bought my car and they didn't tell me the A/C didn't work. Shame on me for not testing it. So I am very lost. When I turned my AC on it was blowing outside temp air. I purchased the recharge can with the gauge. It was pretty much all the way low before I charged the system, It blew cold air but when I parked my car it had alittle bit of steam coming from the engine bay, couldn't locate where though. 4 hours later I got in my car and turned the AC on and back to outside air temp.... Help please?
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Old 03-05-2012, 01:23 AM   #2
Rally Monkey
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Join Date: May 2003
Chapter/Region: SWIC
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03 WRX Sedan
Silver

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Could be a leak in many places....but the high pressure hose is notorious for going bad.
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Old 03-05-2012, 09:53 AM   #3
Ndasilva
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Ok, sounds like I should recharge with a uv can then?
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Old 03-05-2012, 05:10 PM   #4
Rally Monkey
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The system is empty from a leak, you have contaminates and moisture in there now. It should be under vacuum for a while to clean out before recharging, I would take it somewhere that has an A/C machine. They can use an electric sniffer or UV to find the leak and charge it properly with the right amount of refrigerant and oil. If you have the gear, do the UV test, repair the leak and then take it to a charging machine.
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Old 03-05-2012, 05:29 PM   #5
Mulder
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15 WRX/05 GTO

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Go to a shop and have it diagnosed, repaired and recharged properly. The DIY-in-a-can recharge kits are crap and while you might get working AC in the short term, you can end up with very expensive problems later on.
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Old 03-07-2012, 12:37 PM   #6
lolol
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If you have a small leak, continuing to top off before going totally flat will prevent the system from ingesting contamination. Once its totally flat, the system is likely contaminated with moisture, so a new dryer at the time of repair is recommend. Before the new dryer, the system will have to be evacuated and held at several microns of vacuum for a few hours to remove moisture.

The lubricant used with R-134a has greater affinity for water and vacuuming will not totally remove it like mineral oil in R-12.
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