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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

13 Toyota Avalon B1422 Lock Sensor
07/02/2020 in the HVAC Forum
Working on this 13 Toyota Avalon Limited 3.5l a/c. Vehicle presented no A/C control head operation would only display time, this is a digital soft touch LCD interface. NO communication with Control head so we suspected A/C Amplifier, tested power and grou...
Rear AC delete 2007 Chrysler Town and Country
07/01/2020 in the HVAC Forum
[HVAC: 07 Chrysler Town & Country Touring 3.8L] Installing a rear evaporator block off kit on mom's minivan. They don't use the rear AC anymore since the grandkids grew up, so it isn't worth the expense of replacing the leaking evaporator. My question i...
is this normal operation
06/30/2020 in the HVAC Forum
[HVAC: 14 Dodge Grand Caravan SXT 3.6L] When the ignition is first turned to run, the hvac system goes thru a calibration where it operates all the doors from stop to stop. This takes about 55 seconds. This has manual front & rear hvac, and neither f...
Evaporator Liquid
06/26/2020 in the HVAC Forum
Evaporator Liquid In the past for holidays, or upcoming holidays, I many times submit/submitted thread posts to offer beneficial information here at iATN. I would like to revisit a topic for the "benefit" of old and new members of iATN. In the past, a lot...
P0532
06/23/2020 in the HVAC Forum
[HVAC: 12 Ford F-150 XLT 3.5L] Complaint of a/c blowing warm....found dtc set. Have 5v and ground at pressure sensor, sensor reading 1.6 volts at sensor.... Checked wire to ecm, ok. Cleared code, did not return. Engine running data pid for pressure senso...

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