Category Archives: Uncategorized

It’s not your Daddy’s Section 609 certification anymore


By Steve Schaeber, MACS Manager of Service Training If you were Section 609 certified before 2015 and you’re scrambling to find your card to buy refrigerant this Spring that’s fine, but after you calm down and get a shiny new … Continue reading

Posted in Uncategorized | Leave a comment

Look at this beauty!


Longtime MACS member Gus Swensen serviced this 1957 Bentley yesterday, he got their A/C back in shape at Cool Car Auto Air of Columbus, GA.

Posted in Uncategorized | Leave a comment

Radiator Inspection


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 times when job requirements make it impractical or inefficient to … Continue reading

Posted in Uncategorized | Leave a comment

Coolant chemistry review


By Dave Hobbs, MACS Technical Correspondent Ethylene glycol (EG) was green back when I was a young tech, and its formula is fairly obsolete now. Its technical name is IAT (Inorganic Additive Technology), which contained Borates, Phosphates and Silicates. Silicates … Continue reading

Posted in Uncategorized | Leave a comment

Another GM Antifreeze


By Paul Weissler, MACS Senior Technical Correspondent Every engineering group of every car company wants exclusivity, and that often extends down to the smallest things. Then the corporate purchasing teams for the parts departments look them over and decide there … Continue reading

Posted in Uncategorized | Leave a comment

The time for mandatory Section 609 recertification is now


The new refrigerant purchasing rules that took effect January 1, 2018 have had service shops, distributors and the MACS office in an uproar. At the MACS office, the faxes, emails, phone calls and mail deliveries never stop. Every technician wants … Continue reading

Posted in #1234yf, ACtion Magazine, Environmental Protection Agency, Mobile Air Conditioning, Uncategorized | Tagged , , , | 1 Comment

Continuing training is key to success


Changes in automotive technology invariably impact the service industry, and technicians who don’t keep up are finding fewer jobs they can do correctly and profitably. The impact is not “overnight.” But when the car is in your shop, you can’t just … Continue reading

Posted in Uncategorized | Leave a comment

Check out MACS 2018 Training Event and Trade Show Schedule


Registration opens Tuesday, September 5, 2017 for the February 14-18, 2018 Event in Orlando, FL. Complete details at this link.  

Posted in Uncategorized | Leave a comment

MACS heavy-duty mobile A/C training with Mahle October 5-6 in York, PA


MACS member, Mahle Service Solutions located in York, PA has graciously opened its manufacturing facility for a MACS Section 609 Certification class on Thursday, October 5 from 2pm-5pm. Also, on Friday, October 6 MACS and Mahle will host a MACS … Continue reading

Posted in Uncategorized | Leave a comment

Thermocycle leaks


Radiator leaks are nothing new, and some technicians may initially blame a faulty part, poor construction or shoddy workmanship during installation when a leaker shows up in their bay, particularly when it’s a later model vehicle that has failed. But … Continue reading

Posted in MACS Member, Mobile Air Conditioning, Training, Uncategorized | Tagged , , , , , | Leave a comment