Category Archives: Automotive Aftermarket

2018 MACS Service Information Survey


The Mobile Air Conditioning Society (MACS) was organized to serve the mobile air conditioning industry. MACS’ charter and mission are communication and education. To achieve these goals, the Society has developed training programs and coordinated information between the air conditioning … Continue reading

Posted in #1234yf, Automotive Aftermarket, Automotive training, MACS Member, Mobile Air Conditioning, Refrigerants | Tagged , , , , , , , , | Leave a comment

Do you know your HVAC components?


  The first part of any good under-hood inspection should include a label check. The labels below provide us with refrigerant charge specifications to correlate to the OE specifications found in service information. Notice the specifications for the R-1234yf charge … Continue reading

Posted in #1234yf, ACtion Magazine, Automotive Aftermarket, Mobile Air Conditioning, Training | Tagged , , , , | Leave a comment

MACS Training Clinic in Watertown, SD


Many thanks to MACS member Lake Area Technical Institute for hosting a capacity crowd at their training center Friday, March 23 for a MACS mobile A/C heavy duty best practices class. MACS training classes are happening all Spring see the … Continue reading

Posted in #1234yf, #off road vehicles, Automotive Aftermarket, MACS Member, Mobile Air Conditioning, Training | Tagged , , , , | Leave a comment

Section 609 certification frequently asked questions


The MACS office continues to experience a high volume of telephone calls regarding questions about Section 609 certification. Please read through the list of questions and answers below before calling the MACS office. Thank-you This is the MACS  wordpress blog, … Continue reading

Posted in #1234yf, Automotive Aftermarket, Automotive training, MACS Member, Mobile Air Conditioning | Tagged , , , , , , | 1 Comment

Join us at AC/cess 2018


If you need more reasons to escape from winter’s grasp and head for sunny Florida next February, I’ve got a bunch for you. MACS Worldwide will return to the Caribe Royale in Orlando Feb. 14 through 17, 2018. The event’s … Continue reading

Posted in Automotive, Automotive Aftermarket, MACS Member, Mobile Air Conditioning | Tagged , , , , , , | Leave a comment

Keeping pace with change


We have been hearing about the evolving and expanding roles of air conditioning and cooling as technology continues to develop. A couple examples will appear in the 2018 Dodge Challenger SRT Demon to be released this fall. When in Drag … Continue reading

Posted in ACtion Magazine, Automotive Aftermarket, Automotive training, MACS Member, Mobile Air Conditioning, Training | Tagged , , , , , | Leave a comment

MACS 2017 Spring Mobile A/C Training Clinics


MACS has many mobile A/C training clinics scheduled throughout North America and we are adding more everyday! Please click here to see the full schedule of clinics and register to attend today! If you’re a service professional and not a … Continue reading

Posted in #1234yf, Automotive Aftermarket, Automotive training, MACS Member, Mobile Air Conditioning, Uncategorized | Tagged , , , , , , , , | Leave a comment

Gen 2 Ridgeline cools with R-1234yf


  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 production hiatus. Like other manufacturers who are introducing new … Continue reading

Posted in #1234yf, ACtion Magazine, Automotive Aftermarket, Automotive training, Environmental Protection Agency, Hybrid, MACS Member, Mobile Air Conditioning, Refrigerants | Tagged , , , , , , , , , | Leave a comment

While my water pump gently weeps…apologies to George Harrison


  By Steve Schaeber, MACS Technical Editor Most modern engines use some type of water pump to circulate antifreeze through the engine and heat exchangers to regulate operating temperature. Many of the engine-driven pumps contain shaft seals that are lubricated … Continue reading

Posted in Automotive, Automotive Aftermarket, MACS Member, MACS Training Event, Mobile Air Conditioning, Refrigerants | Tagged , , , , | Leave a comment

Insufficient A/C performance at idle


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 within specifications at idle according to the A/C Performance Chart … Continue reading

Posted in Automotive, Automotive Aftermarket, Hybrid, MACS Member, Mobile Air Conditioning, Refrigerants, Training, Uncategorized | Tagged , , , , , | Leave a comment