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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

Contaminated refrigerant - new R1234yf Machine
01/20/2021 in the HVAC Forum
We recently purchased a Robinair R1234yf machine and started doing services with it. One of our local body shops has been sending us business and we got a 2015 Grand Cherokee from them to do a service on. We started doing the service and then the machine ...
OIL INJECTORS
12/20/2020 in the HVAC Forum
Its the end of the year and the wifey says I need to spend some money. I have been debating on getting into the R1234YF business for about 4 years now. I am glad I waited as I have had little call for YF work thus far and the equipment would have been a w...
BLEND DOOR
12/15/2020 in the HVAC Forum
[HVAC: 98 Chevrolet C1500 Cheyenne 4.3L] My door that sends air to defrost is broken. The hook to attach to the 2 metal arms is gone. Is there a kit for that or just remove case and install new door? Saw few various things online but nothing definitive. ...
bitten by a schrader valve
10/30/2020 in the HVAC Forum
Just finished diagnosing a problem that reminded me to never forget the basic's, 2011 GM luxury vehicle that uses a pressure transducer/sensor to regulate compressor solenoid,sensor had 5v ref signal and ground, but no voltage output to ECM, after being s...
Know a module rebuilder rear auxiliar module Auto AC
10/28/2020 in the HVAC Forum
[HVAC: 02 GMC Yukon SLE 5.3L] Hello fellow HVAC gents.. First time poster in this forum. I am having quite a hassle trying to find a discontinued GM part # [...] and pretty much given up on locating one new. What I am after is possibly a rebuilder that w...

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