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09Sep

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…

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09Sep

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

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09Sep

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…

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04Apr

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…

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08Aug

By Paul Weissler, MACS Senior Technical Correspondent The evaporator is out of sight, but with A/C  technicians it can’t be out of mind. When you can’t find a leak anywhere…

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09Sep

 [youtube=http://www.youtube.com/watch?v=pS2InArAuVc&w=420&h=315]

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08Aug

By Elvis L. Hoffpauir, MACS president and COO We know that MACS members are the best of the best, the crème de la crème, go-to guys even for other A/C…

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06Jun

There’s nothing cheaper or more benign than soap bubbles for finding a leak. As a technician with a 1999 Pontiac Bonneville complained, he tried trace dye and two different electronic leak detectors with no luck, despite the fact that the system was gushing between a half-pound and a pound overnight. But when he swabbed the compressor nose with soap solution, presto, it bubbled. His conclusion: back to basics does it.

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05May

1) What is HFO-1234yf?
HFO-1234yf is a chemical refrigerant that will be used in new cars in place of R134a.

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11Nov

The compressor is usually belt-driven by the engine crankshaft, and engages through an electromagnetic clutch.

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11Nov

The Mobile Air Conditioning Society (MACS) Worldwide has been honored with two Automotive Communications Awards for its technical newsletter MACS Service Report. The September 2009 issue of the MACS Service Report covering A/C performance in hybrid vehicles was the winner in the business-to-business technical magazine article category and was chosen best in show for the business-to-business communication category. The awards were presented during the Car Care Council Women’s Board reception, which took place Tues., Nov. 2, at the Sands Expo Center during the Automotive Aftermarket Products Expo (AAPEX).

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10Oct

In a scroll compressor, a scroll shaped “paddle” rotates inside a channel. By the offset of the paddle drive pin, the compressor drive shaft rotates the paddle in an orbiting or circular motion.

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