What you don’t know can hurt your diesel engine
April 4, 2017
By Lauren Lewis An introduction to heavy-duty coolant technology and best practices Coolant has a few basic jobs in a vehicle’s engine, not the least of which is to absorb...Read Article >
Going electric
March 13, 2017
By Steve Schaeber, MACS manager of service training One of my favorite childhood toys was an electric race track set, but more fun than playing with it was taking apart...Read Article >
Alternative fuel vehicle service
January 23, 2017
By Andy Fiffick, MACS Chairman/CEO and Owner Rad Air Complete Car Care I come from a Ford family. My Dad retired from Ford in 1989, I have two brothers...Read Article >
Gen 2 Ridgeline cools with R-1234yf
January 18, 2017
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...Read Article >
Hybrid and battery electric vehicle A/C
December 31, 2016
By Steve Schaeber, MACS Technical Editor Internal combustion engines have powered our transportation for decades, including the cars and trucks we drive each day. Over the years we’ve seen attempts...Read Article >
Insufficient A/C performance at idle
September 8, 2016
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...Read Article >
Do you know the basic principles of mobile A/C diagnostics?
June 1, 2016
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.Read Article >
A/C use and fuel efficiency, A MACS whitepaper
July 13, 2015
Does using your A/C system cause you to burn more fuel? MACS attempts to answer that question in the attached whitepaper. Free download. If you’re a service professional...Read Article >
The high voltage A/C oil cross contamination issue
June 25, 2015
What you can do to provide safe service with an existing SAE J2788 machine If you work on air conditioning, you’ve hopefully heard about the issues regarding high voltage compressors...Read Article >
A/C Diagnostics & Troubleshooting
June 1, 2015
It’s long been said that opinions are like smiles… everybody’s got one! And that’s certainly true when it comes to diagnosing and troubleshooting mobile A/C systems. Depending on whom you...Read Article >
HVAC in Hybrid and Electric Vehicles
October 22, 2013
Hanging out in the hall after lunch at the MACS Training Event in New Orleans, a young tech approached Jack Rosebro, introduced himself as Ron and said, “Somebody told me...Read Article >
All about receiver driers
September 10, 2013
[youtube=http://www.youtube.com/watch?v=pS2InArAuVc&w=420&h=315]Read Article >