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Automotive HVAC Forum

Professional automotive forum for discussion of heating, ventilation, and air conditioning maintenance and repairs. Includes discussion of refrigerants, refrigeration lubricants, system analysis and diagnostics, filtration, HVAC-specific tools & equipment, best practices, and more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Discussion Forum.

Recent Automotive Discussions in the Automotive HVAC Forum

Finding Leaks in Empty R1234yf Systems
11/13/2019 in the HVAC Forum
Good afternoon, everybody. We have a recently purchased R1234yf machine and use it regularly because we do a lot of work for some local body shops. Today we had one come in that was completely empty. The condenser had been replaced by the body shop, but w...
11/04/2019 in the HVAC Forum
May be wrong forum, need to know what the tool is to remove a suction(low side) line from the evaporator inlet on a 2015 porsche macans 3.6l v6. i don't have anything in my arsenal to fit or work it... contacted local snap on dealer,, he got nothing, i ca...
York 206 A/C Compressor
10/10/2019 in the HVAC Forum
Hello, I'm trying to figure out how the front seal on a York 206 series prevents refrigerant from leaking out, or is it just a dust shield. My problem is I believe I'm leaking refrigerant at the shaft seal. I removed the clutch to gain access to the shaft...
A/C pressures
10/02/2019 in the HVAC Forum
SITUATION: The customer states that while driving, occasionally the air-conditioning system stops cooling. CAUSE: The suction hose (compressor to expansion valve) has internally separated. Analysis of collected hoses indicates that the incorrect refrigera...
stays at panel when defrost or floor is requested
09/23/2019 in the HVAC Forum
[HVAC: 10 Ford Edge SE 3.5L] Vehicle is an automatic and dual zone climate control. following pinpoint test J for incorrect airflow, find DTC B295F, in history B226E. remove ATC control head and ohm test pins. J2 test in spec. J4 test pin10 to pin 8 in s...

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