1993 Chevy Blazer leak detection

1993 CHEVROLET BLAZER
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JEFF ZWAR
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Air Conditioning problem
1993 Chevy Blazer V8 Four Wheel Drive Automatic
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I have pressure tested the system to 75psi with nitrogen for 15 minutes with no pressure loss, and no visible leaks using soapy water solution. But, when pulling vacuum, it loses 6 inches in five minutes and is down to 10 inches overnite. Any ideas?
Jul 15, 2008 at 3:01 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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