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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

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...
2011 EXPEDITION cycles too much going down highway
09/09/2019 in the HVAC Forum
2011 Expedition, front and rear a/c, cools good in stall, when driving down the highway compressor cycles off for 20 seconds or so like low side pressure going below 25 or 30 psi and cuts compressor off. I can monitor high side pressure with IDS but not l...
Freon 134a Refrigerant
09/06/2019 in the HVAC Forum
Freon™ 134a Refrigerant Yes, as much as many of us cringed at the misuse of the term Freon™ years ago, things have changed. If you are not aware of this change, you may get called on it; so, this information will give you a heads-up for the cu...

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