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Old 05-05-2009, 03:23 PM   #7
Scooby Specialist
Member#: 128537
Join Date: Oct 2006
Chapter/Region: MWSOC
Location: Bloomington, Indiana
2004 Baja Turbo


Originally Posted by Guzzler View Post
Actually, go find an A/C tech that uses a "sniffer".
Yup, we tried using one of those too - with mixed results. After going over every possible point in the refrigerant system at least 3 times we came to the conclusion that the most likely place it would be leaking would be at the compressor return line (low side - same line you would put your charge into) We also tried a device that "listens" for any kind of air leak with no luck.

A friend of mine's `02 WRX leaked it's freon out. I believe it's on his low-side maintenance port cuz directly behind it on the firewall there was a thin film of oil with a layer of dust/dirt collected.

I've got a thin layer of oil/dirt directly behind my compressor return line, problem is that's also very close to where you fill the engine oil with, so it's possible that that could be blow-back but I'd say it's refrigeration oil.
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