Category Archives: ACtion Magazine

Engine cooling fans-enough time?


By Steve Schaeber, MACS Technical Editor The hottest days of summer are the most taxing on an engine cooling system. Drivers run their air conditioners to stay cool, which makes the system work even harder, particularly when driving in humid … Continue reading

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A technician’s approach to HVAC diagnosis and testing


Twenty years ago, we could break down all areas of HVAC diagnostics into three categories when you really think about it. It was and still is called Heating, Ventilation, and Air Conditioning (HVAC). All of the HVAC parts and components … Continue reading

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MACS to dedicate annual golf tournament trophy to posthumously honor Art Hobbs


Art Hobbs was a member and director of MACS for many years and was instrumental in the Society’s growth during MACS’ formative years. The MACS annual golf tournament was a particular favorite event of Art’s and he took great pride … Continue reading

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MACS ACTION magazine honored with 7 IAMC awards


MACS ACTION™ magazine has been honored with seven medals for editorial excellence by the International Automotive Media Competition. The IAMC program recognizes and encourages excellence in all forms of automotive media from works published, aired, or broadcast in 2016. The MACS … Continue reading

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How does the MACS Mobile A/C Diagnostics App Work? Take a look…


You must be a member of MACS to obtain the MACS mobile A/C diagnostics App. Join MACS at http://www.macsw.org or call the MACS office at 215-631-7020 x 0

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Looking for mobile A/C wiring diagrams? We know where they are!


MACS mobile A/C diagnostics app includes wiring diagrams for mobile A/C systems for cars and light duty trucks. The only way to get the MACS mobile A/C diagnostics app is to become a MACS member. Join Now! Visit the MACS … Continue reading

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Tata Motors and MAHLE partner together to develop a prototype Secondary Loop Mobile Air Conditioning System on a vehicle


Tata Motors Limited and MAHLE, one of the world’s 20 largest suppliers to the automotive industry, have signed a joint development agreement for designing and developing a Secondary Loop Mobile Air Conditioning System (SL–MAC), under the aegis of United Nations … Continue reading

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Keeping pace with change


We have been hearing about the evolving and expanding roles of air conditioning and cooling as technology continues to develop. A couple examples will appear in the 2018 Dodge Challenger SRT Demon to be released this fall. When in Drag … Continue reading

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Get the MACS mobile A/C diagnostics app with your paid MACS membership


  Nearly a year in the making, the MACS mobile A/C diagnostics app is now available. The MACS board of directors decided last fall that it was time for MACS to fully embrace current technology and push our information out … Continue reading

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HD and OTR vehicle service: Keep it clean


July/August 2017 MACS ACTION Magazine It’s been said that cleanliness is next to godliness. This can also be considered gospel when servicing heavy duty (HD) and over-the-road (OTR) refrigeration. These systems operate in far more severe conditions compared to those … Continue reading

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