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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

1997 Ford L9000 HVAC
09/20/2018 in the HVAC Forum
Hello everyone I was wondering if I could get a wire schematic for the HVAC system In a Ford L 9000. I have one that is butchered pretty bad and is tripping Breaker. We do have a Ford HD dealer I asked them and they actually Laughed at me. Thanks for any ...
Leak Detection with New Glasses
09/05/2018 in the HVAC Forum
I needed new eye glasses. I take the prescription and have it filled. I am checking a Jeep for a leak. I always check the service ports for signs of dye before connecting. I did not use a black light, but I could see traces of dye in the service fittings....
intermittent clutch engagement
09/04/2018 in the HVAC Forum
[HVAC: 04 Toyota Sienna LE 3.3L] The van will operate 15 to 30 minutes before losing clutch control. When this occurs I lose the pcm signal to clutch relay. Wait a while and I get clutch function as if it is temp. related. Refrigerant is correct, pressur...
Possible evap freeze
09/04/2018 in the HVAC Forum
[HVAC: 07 Freightliner M2 106 7.2L] Good day team, I would be happy for your assistance to align my thoughts and diagnosis on one of the trucks. - System had been out of service for some time - Flushed system - Installed a new receiver drier and expansi...
11 f350 evap fin temp sensor (ACET)
08/30/2018 in the HVAC Forum
[HVAC: 11 Ford F-350 Super Duty King Ranch 6.7L] Is it possible to replace this sensor without evap removal? I don't believe this is possible. .

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