Fix it correctly the first time
February 15, 2021
A cooling system classroom lesson By Christopher J. Holley, MACS Contributing Editor A 2017 Accord with an overheating 2.4L engine arrived at our college lab. The customer had a limited...Read Article >
A Change in Temperature
February 10, 2021
Using a contact thermometer, they quickly discovered 50° on the suction line at the expansion valve, and down at the compressor it read 96°. Along any length of hose or tube, there should be very little change in temperature.Read Article >
Compressor Oil: When is it enough?
February 9, 2021
But how do we know that a system has the correct amount in it to start with?Read Article >
Doing the repair right
February 4, 2021
By Richard Hawkins, MACS Contributor The focus in the two previous weeks articles on the Chevy Tahoe was on what went wrong and what should have been done to correct...Read Article >
Safety Alert: Online Sales of Cool Penguin F-12
November 23, 2020
Refrigerant safety alertRead Article >
Understanding data lines (Part I)
September 8, 2020
By Larry Turay Data lines and multiplexing have been with us in the heavy-duty world since 1990. The increased use of ABS, electronic ICUs, and automated transmissions to name a...Read Article >
Spend some time with MACS president and coo Elvis Hoffpauir
July 24, 2020
Hello, and Welcome to MACS Worldwide’s YouTube Channel. We’re glad you’re here! Elvis Hoffpauir Pioneer Experience MACS History! Elvis Hoffpauir, MACS president and chief operating officer, was presented with a...Read Article >
Connector testing and repair
July 22, 2020
By Larry Turay In the previous issue, wiring harness issues were discussed. The subject of harness issues continues with a look at connectors and connections either in the harness or...Read Article >
MACS Live Chat (John Duerr & Steve Schaeber discuss A/C Leak Detection Tracer dye & COVID-19 in NYC)
May 28, 2020
Hi everyone, and welcome to another MACS Live Chat, hosted by Steve Schaeber, manager of service training and technical editor for MACS publications like ACtion Magazine and the MSR (MACS...Read Article >
Thermostats
May 18, 2020
By Neal Kwort, MACS Technical Correspondent As you know, engines have to be warm to run efficiently for drivability, emissions and fuel economy. But why is this necessary? It’s got...Read Article >
Stop complaining about the technician shortage…
April 8, 2020
…and DO SOMETHING ABOUT IT! By Elvis Hoffpauir C.O.O. MACS Worldwide That was the principal message from Peter Meier, Director of Training at Motor Age. Peter, along with MACS Technical...Read Article >
Helpful tactics to minimize the spread of Covid-19 in your service and repair shop
April 7, 2020
By Bill Snow, Radair Complete Car Care, Cleveland, OH With today’s concern about being exposed to COVID-19 shop owners need to take additional steps to protect their team members and...Read Article >