Category Archives: Uncategorized

Comparing the 2020 COVID-19 and 2003 SARS Pandemics


By Ward J. Atkinson, MACS Technical Advisor When COVID-19 first appeared in the news, the U.S. general population wasn’t very concerned. Many assumed that like the SARS pandemic, it would only affect relatively few people. The 2002–2003 SARS outbreak lasted … Continue reading

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Over the road: Auxiliary power unit engine cooling systems


By: Joey Rosato, Director of Marketing at Texas Truck A/C, Inc. As time goes on, Auxiliary Power Units (APUs) continue to play a larger role in the over the road trucking industry. Idle laws that vary state by state are … Continue reading

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MACS Live Chat (Richard Hawkins and Steve Schaeber discuss Service Port Location)


This live chat features Richard Hawkins, A/C Tech line specialist and MACS technical contributor. Like many of you are during this Coronavirus Pandemic, all of us here on the MACS Staff are working from home and practicing social distancing to … Continue reading

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Name That Hybrid Water Pump


By Dave Hobbs, MACS Technical Correspondent While virtually every HEV (hybrid electric vehicle) has an ICE (internal combustion engine) along with one or more high voltage electric motors, not every one of them circulates the coolant in their engines the … Continue reading

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Electric yf


June is hybrid month at MACS, and since we looked at the overall industry last month when it comes to its use of R-1234yf refrigerant, let’s take a closer look this month at what’s happening with hybrid and battery electric … Continue reading

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Meet MACS Member Joey Rosato of Texas Truck A/C


Joey Rosato is second-generation and Director of Marketing for family-run Texas Truck A/C in Dallas, TX. Joey tells us, “It all started in 1996, when Nick Rosato (Joey’s Dad) set out on his own to work on trash truck A/C … Continue reading

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MACS Live Chat (Clem Drummond and Steve Schaeber discuss Automotive Education in NYC & COVID-19)


Hi everyone, and welcome to another MACS Live Chat, hosted by Steve Schaeber, manager of service training and technical editor for MACS publications like ACtion Magazine and the MSR (MACS Service Reports). Joining me today is Clement E. Drummond, Director … Continue reading

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The June issue of ACtion magazine is out!


By Dave Hobbs, MACS Technical Correspondent Name That Hybrid Water Pump While virtually every HEV (hybrid electric vehicle) has an ICE (internal combustion engine) along with one or more high voltage electric motors, not every one of them circulates the … Continue reading

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MACS Live Chat (John Duerr & Steve Schaeber discuss A/C Leak Detection Tracer dye & COVID-19 in NYC)


Hi everyone, and welcome to another MACS Live Chat, hosted by Steve Schaeber, manager of service training and technical editor for MACS publications like ACtion Magazine and the MSR (MACS Service Reports). Preview(opens in a new tab) This live chat … Continue reading

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Thermostats


By Neal Kwort, MACS Technical Correspondent   As you know, engines have to be warm to run efficiently for drivability, emissions and fuel economy. But why is this necessary? It’s got to do with the volatility (the capability of fuel … Continue reading

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