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Vehicle Components

Mastercool returns to MACS Training Event

September 22, 2022

“Mastercool is celebrating our 40th year of supplying professional quality air conditioning service tools and equipment. As one of the fastest growing companies in this market, our primary goal is to drive new product innovation and technologies to make the everyday work of the automotive technician easier.”
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Don’t overlook a diagnostic clue

September 13, 2022

When thinking about the topic of A/C diagnostic tools, a recovery, recycle, recharge machine (R/R/R machine) is not one of the first tools that comes to mind.  It may not come to mind at all in the world of inexperienced technicians. 
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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.
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T/CCI MFG Awarded Illinois’ First Reimagining Electric Vehicle Tax Incentive Package to Support Major Investments in Transportation Manufacturing and Infrastructure

September 7, 2022

MACS member T/CCI Manufacturing, a global leader for compressor technology, has received Illinois’ first Reimagining Electric Vehicle (“REV Illinois”) Tax Incentive package established by Governor J.B. Pritzker and the Illinois Department of Commerce and Economic Opportunity (DCEO).
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You Knucklehead, you caused this compressor to lock up!

September 7, 2022

Last week's article ended with the following: "As I was completing the job, it hit me what had happened and my first thought was:  You Knucklehead, you caused this compressor to lock up!"  
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Charging buses and other large systems

September 1, 2022

I have been in the transportation climate control industry for 30 years now and have had the good fortune to have learned from some of the best people in the industry. Although I specialize in the school and transit bus sector, all large systems pose the same certain challenges that require the use of proper equipment and tools to perform the repairs correctly.
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Unlocking the compressor Lock up, PT. 2

August 30, 2022

I was driving the van home in the afternoon. It was about 45° F outside and the heater was on. It had been an uneventful 15 to 20 minutes’ drive at about 55 to 60 mph. Slowing down to make a 90 degree turn on to a different road, a faint grinding noise was heard. I rolled the window down and drove along at about 5 MPH and could hear the noise more distinctly. The next step was to pull over into a parking lot and leave the engine running and raise the hood.
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Unlocking the compressor lock up

August 23, 2022

I noticed the temperature inside of the van had increased a bit. Placing my hand near a vent, I also noticed that the airflow had decreased and increasing the blower speed did not increase the airflow much.
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Why did the compressor lock up, part 2

August 16, 2022

The relay was sticking in the on position and the compressor would not cycle off when the clutch cycling switch turned the power off to it.
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Why did the compressor lock up?

August 10, 2022

All too often when a compressor lock-up occurs, the compressor itself is blamed for the lock-up. While it is possible for a manufacturing defect to cause a lock-up, there is usually a problem related to the service work or a problem with the system that is the culprit.
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