Tag Archives: vehicle

Thermocycle leaks


Radiator leaks are nothing new, and some technicians may initially blame a faulty part, poor construction or shoddy workmanship during installation when a leaker shows up in their bay, particularly when it’s a later model vehicle that has failed. But … Continue reading

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Here comes the Sunair convention backpack


There will be a sea of yellow when MACS 2017 Training Event and Trade Show attendees pick up their new sunny yellow backpacks at MACS registration desk February 15-18 at the Anaheim Marriott. Longtime MACS member and sponsor Sunair is … Continue reading

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GM’s first Chinese-built crossover at Buick dealers now


By Steve Schaeber, MACS Technical Editor During a trip earlier this month to Bergey’s Buick GMC in Franconia Township (Souderton), PA, MACS was fortunate enough to be shown their newest Robinair R/R/R machine for use with R-1234yf refrigerant as well … Continue reading

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Antique air by Denso, circa 1973


By Steve Schaeber, MACS Technical Editor Regular readers of the MACS WordPress BLOG know that we’ve been out and about lately, hunting down those vehicles that are new to the streets with R-1234yf refrigerant. Our travels this week brought us … Continue reading

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More in common with an IT specialist


“…more than 30 hours of information, education and training…” Continue reading

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GMC hits the road with R-1234yf


By Steve Schaeber, MACS Technical Editor It was during the general session meeting on Thursday morning at MACS 2016 Trade Show in Orlando that we first learned about GM’s intention to add several new vehicles to their lineup this year … Continue reading

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A small Δ in airflow = A BIG impact on A/C performance


By Steve Schaeber, MACS manager of service training Proper air flow across the heat exchangers in an air conditioning system is key to its being able to transfer heat efficiently. Problems with air flow can be caused by slow turning … Continue reading

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Do you know how to handle A/C for off highway vehicles?


  Like the light duty world, most heavy duty HVAC systems are tested using a laptop and specific software. However, the Freightliner M2 Business Class Truck HVAC controls and blower motor circuits can still be checked using common items found … Continue reading

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Nissan bleeder caps


By Steve Schaeber, MACS Technical Editor Coolant leaks take on many different forms. Some we’re used to seeing, as they’re common failures that make up some of the bread and butter of cooling system service. But there are others that, … Continue reading

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What exactly goes on in a wind tunnel test?


  T/CCI’s Wind Tunnel: Let’s test it! By Steve Schaeber, MACS Technical Editor One of MACS most unique mobile A/C training events was held on Friday, May 29th in Decatur, Illinois at T/CCI’s Climatic Wind Tunnel facility. Amongst those who … Continue reading

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