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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

New compressor noise-- 7SBH17C
06/18/2024 in the HVAC Forum
[HVAC: 13 Ford Flex SEL 3.5L] Installed new compressor and condenser 2-3 weeks ago.Cooled well, but was whiny when sped up at idle... Well, it came in Monday- no whine. but very poor cooling- 250 hs, 80 ls.Decided to get another compressor and replace it...
Where do you like to put your compressor oil?
06/14/2024 in the HVAC Forum
AC oil ends up in every component of the ac system to include lines. So when Replacing a compressor, and flushing your system, There is no longer any oil anywhere in the system. So where do you like to put your oil? If a system takes 8oz of pag, whatever ...
Microns - Ice - At What Reading Formed, How to Remove
06/06/2024 in the HVAC Forum
Microns - Ice - At What Reading Formed, How to Remove Note: It has already been established here that some vehicle MVAC system sources (not all) mention the inclusion and necessity of micron procedure and equipment to remove moisture. Additional note: The...
The Climate of Hell - Exothermic or Endothermic?
06/05/2024 in the HVAC Forum
The Climate of Hell - Exothermic or Endothermic? By B. Geerts: "Is Hell exothermic (gives off heat) or endothermic (absorbs heat)?" "Support your answer with a proof." Most of the students wrote proofs of their beliefs using the ideal gas law (Note 1.M). ...
Question of the day, for 'brainiacs'
06/04/2024 in the HVAC Forum
Which process below is quicker? Ice changing physical state to vapor? Water changing physical state to vapor?

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