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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

Evap temp sensors, in general
06/22/2018 in the HVAC Forum
We work on A/C year round here, and for some reason (luck?) I have never had to diagnose or replace an evaporator temperature sensor. It occurred to me today that I honestly have no idea what the "normal" range should be on a perfectly good working system...
Hybrid oil
06/22/2018 in the HVAC Forum
Is there a legitimate universal blend? We have a brand called "Supercool super premium Hybrid AC oil" for use in with vehicles with electric air compressors. Good enough or nah????
COMPRESSOR FAILURE ANALYSIS
06/21/2018 in the HVAC Forum
[denso-am.eu].
Refrigerant oil guide
06/19/2018 in the HVAC Forum
Replacing a compressor on that 2014 Ram I posted about. It is a Nippondenso unit and it lists ND12 as the oil of choice on the unit. Mopar lists PSD-1 part# [...] and no dealer around has any, lol. So I must wait and get it. Other than Delco 10-4085 , I h...
R1234yf Questions
06/16/2018 in the HVAC Forum
I am asking these questions to help those who are unsure of the answers. Please reply using information you have heard or read regardless of the source. Misinformation is a problem, it needs to be brought to light and corrected. Correct information is nee...

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