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Interior Heating Evolution
November 1, 2022
In the last 120 years, automotive passenger heating has evolved dramatically from open carriage-type automobiles with little occupant protection from the elements to complex electric vehicle (EV) heating, ventilation, and air conditioning (HVAC) systems.Read Article >
Heavy-duty Coolants
October 31, 2022
In this MACS 2023 Training Event class about Heavy duty coolants, you will learn about: • OEM approved coolants • Coolant colors • Testing of coolants • Coolant filtering • Treating cooling systemsRead Article >
Global Parts Distributors to exhibit
October 18, 2022
All GPD products are designed to meet/exceed OE fit, form, and function. Product lines include compressor, condensers, cooling fans, electrical components and engine management sensors, evaporators, expansion valves, fittings, heater cores, hose assemblies, radiators, tools, chemicals, service items, and ‘Do It Right the First Time Kits’: Compressor Kits, Kits Plus, System Service Kits, Blower Motor Kits, as well as application specific O-Ring Rapid Seal Kits (included w/ Compressors Kits, Kits Plus, and System Service Kits) and Cap and Valve kits.Read Article >
UAC returns as a MACS Exhibitor
September 13, 2022
UAC is a family owned and operated company since 1988, from Mansfield, TX specializing in Temp Control and Engine Cooling products.Read Article >
The benefits of MAP-controlled thermostats
February 9, 2022
A customer driving a 2014 BMW 328i arrived at the college's 2nd-year electrical lab reporting his illuminated check engine light. The customer had no complaints other than the light. The vehicle had just over 82K miles showing on the odometer. A student (Phil) assigned to the BMW performed a review with a scan tool, and a single code (P0597 – Thermostat Heater Control Circuit Open) was present.Read Article >
Air contamination in an A/C system can ruin your day
February 2, 2022
I had a memorable encounter with air contamination in the mid 1990s. I was conducting a lot of retrofit clinics at the time and had recently acquired a demo refrigerant identifier which I took to those clinics. At one clinic, there was a technician who was extremely interested in the refrigerant identifier.Read Article >
The pressure is on
April 19, 2021
By appearance, radiator caps seem to be a simple device. Yet, many technicians do not understand the cap’s real functionRead Article >
Learn all about electric cooling fan analytics
March 1, 2021
Learn all about electric cooling fan analyticsRead Article >
Caveman to Mr. Cool
February 18, 2021
Over 300,000 years ago, modern man began walking the earth relying heavily on his five senses-- especially sight – to hunt, find joy, and avoid danger. In 1914, Garrett Morgan, who decided it was important to protect man’s eyes during hazardous situations, developed what we know today as ‘safety’ glasses.Read Article >
The Lubrication System Service – It seems routine, but it’s not!
March 5, 2020
Have you ever heard someone say, “When it begins ticking, that’s when I know to add oil?” When we’re asked to change oil and filter, it seems so routine. Car...Read Article >
Radiator Inspection
May 10, 2018
By Chris Tyson, MACS Heavy Duty Contributor Our fleet includes more than 180 pieces of equipment, and while we implemented a periodic inspection program many years ago, there are still...Read Article >
Clogged radiator!
July 8, 2016
Johnny’s Radiator in Warren, AR is very busy right now and trucks with clogged radiators like this are one reason why! Make sure air flow is not restricted. If you’re...Read Article >
