Author Archives: macsworldwide

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

The Shop Down Below


By Steve Schaeber, MACS Technical Editor Back in July I attended IMPACon18, the annual conference of the International Motor Press Association, of which I’m a member. This year it was hosted by Volvo at their newest dealership, Volvo Cars of … Continue reading

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Time counts!


By Angie Kilbourne Despite the awesome features available on social media, it can be a time sink — whether as part of a business’ marketing program or as a consumer. And even if you are doing it right, social media … Continue reading

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Installation and modification of A/C systems for US and imported vehicles


By Ward Atkinson Members have requested information regarding requirements that apply to vehicles produced by OEM vehicle manufacturers, commercial upfitters and independent A/C repair or service facilities that install or modify mobile A/C systems. All A/C refrigerants listed as acceptable, … Continue reading

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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 … Continue reading

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Tariffs a threat to auto repair industry


July 6, 2018 (Lansdale, PA) Today, 25 percent tariffs went into effect on a list of Chinese goods, and many MACS members have voiced concerns about the impact the tariffs will have on all sectors of our industry. In the … Continue reading

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Spin-On Coolant Filters


By Chris Tyson, MACS Heavy Duty Contributor While rarely seen in automotive and light truck systems, engine coolant filters (sometimes called water filters) can be found on many over-the-road, heavy duty truck and off-road engine cooling system applications. While most … Continue reading

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The new world of HD and off-road equipment cooling


By Jerry Lemon, Lemco Mobile AC Consulting Welcome to the new world of HD and off-road air conditioning. There was a time, not that long ago, when the HVAC system in a piece of heavy equipment, or an over-the-road (OTR) … Continue reading

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Are you ready for A/C season?


This is the MACS blog site if you are looking for the MACS main website click here. Repair shops – one question: Are you prepared for A/C season 2018? Circle the right answer: YES – NO What do you mean … Continue reading

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It’s not your Daddy’s Section 609 certification anymore


By Steve Schaeber, MACS Manager of Service Training If you were Section 609 certified before 2015 and you’re scrambling to find your card to buy refrigerant this Spring that’s fine, but after you calm down and get a shiny new … Continue reading

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Look at this beauty!


Longtime MACS member Gus Swensen serviced this 1957 Bentley yesterday, he got their A/C back in shape at Cool Car Auto Air of Columbus, GA.

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