Leaks under vacuum


By Steve Schaeber

A s OEMs continue improving their systems, technicians are seeing leaks more often attributed to the valve core located down inside the service port fitting, either on the high or low side of the system. Most of these leaks are discovered while the system is charged and under pressure, but that’s not the only time they can be found.
We recently worked on an F-650 bucket ……
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About macsworldwide

Mobile Air Conditioning Society (MACS) Worldwide Founded in 1981, MACS is the leading non-profit trade association for the mobile air conditioning, heating and engine cooling system segment of the automotive aftermarket. Since 1991, MACS has assisted more than 600,000 technicians to comply with the 1990 U.S. EPA Clean Air Act requirements for certification in refrigerant recovery and recycling to protect the environment. The Mobile Air Conditioning Society (MACS) Worldwide’s mission is clear and focused--as the recognized global authority on mobile air conditioning and heat transfer industry issues. www.macsw.org
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