Tag Archives: air conditioning components

Cool runnings


By Steve Schaeber, MACS Technical Editor The main purpose of a thermostat is to help the cooling system regulate engine operating temperatures to within the manufacturer’s specification. This is normally done by first remaining closed to allow engine coolant to … Continue reading

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Changing regulations is no simple matter


By Keith Leonard, ESQ Regulations play an integral role in all of our lives. It is impossible to imagine driving a vehicle without regulations governing driving behavior. Without such regulations, every time you drive could, perhaps be, an accident waiting … 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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A/C performance issue


The part exists, sort of. The 2001 Dodge Caravan minivan with Automatic Temperature Control had poor rear A/C cooling performance and the technician decides (correctly) the issue is with the rear expansion valve. But it’s not like one with which … Continue reading

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Repeat blower motor issue


By Steve Schaeber, MACS Technical Editor An old boss of mine used to have a saying that goes something like: I ain’t got time to be doing the same thing two and three times! In fact, I can still picture … Continue reading

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Where have all the “leakers” gone?


By Ward Atkinson, MACS Technical Advisor It has been said that back in the days of R-12, A/C system engineers sometimes used “Band Aid” fixes to address A/C system issues. Speaking as one of those early engineers, there is some … Continue reading

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