Category Archives: Automotive Aftermarket

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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MACS 2017 Spring Mobile A/C Training Clinics


MACS has many mobile A/C training clinics scheduled throughout North America and we are adding more everyday! Please click here to see the full schedule of clinics and register to attend today! If you’re a service professional and not a … Continue reading

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Gen 2 Ridgeline cools with R-1234yf


  By Steve Schaeber, MACS Technical Editor The 2017 Ridgeline is the second generation of Honda’s midsize pickup truck, redesigned and brought back in June 2016 following a short 2 year production hiatus. Like other manufacturers who are introducing new … Continue reading

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While my water pump gently weeps…apologies to George Harrison


  By Steve Schaeber, MACS Technical Editor Most modern engines use some type of water pump to circulate antifreeze through the engine and heat exchangers to regulate operating temperature. Many of the engine-driven pumps contain shaft seals that are lubricated … Continue reading

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Insufficient A/C performance at idle


On some 2013 Chevrolet Sparks, the air conditioning duct temperature may be 10°F (5.6°C) warmer at idle, but is sufficient while driving .   Verify that the A/C pressures are within specifications at idle according to the A/C Performance Chart … Continue reading

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Denso uses A/C to alert drowsy drivers


By Steve Schaeber, MACS Technical Editor The basic technology has been around for a while now, going back at least 10 years on Toyota and some luxury car brands such as Mercedes, Lexus and Volvo, but this new concept by … Continue reading

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Do you know the basic principles of mobile A/C diagnostics?


The June 2016 issue of MACS ACTION Magazine challenges you on your knowledge of mobile A/C diagnostics. Download now to see if you really know what you think you know.

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Meet Steve Rush, a MACS member for 29 years… and counting


Meet MACS member Steven Rush of Dealer Automotive Services located in Hopkins, MN. Steve was hired into the business by his father-in-law in 1989 and purchased the business in 2002. Dealer Automotive Services performs many jobs for other repair facilities, … Continue reading

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Six steps to a sound diagnostic strategy


By Bob Chabot, Manic Media LLC James E. Wilson of Bosch USA was a presenter at MACS 2016 Training Event and Trade Show in Orlando, FL this past February he left us with some great information including these six steps … Continue reading

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No, you cannot put R-134a into a HFO-1234yf system; here’s why…


We have received some questions about putting R-134a into HFO-1234yf system and here’s why you should not do that from EPA. From the 2015 EPA SNAP Final Rule: For vehicles for which the manufacturer counts air conditioning credits toward its … Continue reading

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