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.
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| humm and vibration in dash with a/c on 11/20/2025 in the HVAC Forum [HVAC: 19 Dodge Challenger R/T 5.7L] car was at a previous shop where they replaced the ac compressor twice, expansion valve, and drier and it came to us with a humm and vibration in the dash "loud" only with ac on. we replaced the ac compressor with a n... | ||
| AC Freeze up 11/19/2025 in the HVAC Forum [HVAC: 18 Genesis G80 3.8 3.8L] Hello fellow techs, This customer has this 2018 Genesis G80 that will, after 2 or more hours on the highway start to reduce air flow out the vents until it just stops flowing, you can hear the blower motor running. If you ... | ||
| Blower motor resistor 10/13/2025 in the HVAC Forum [HVAC: 16 Ford F-350 Super Duty XL 6.2L] This vehicle is going to need a blower motor resistor. Seems like this is in as awful location requiring major disassembly. Has anyone done the relocation? Seem like kind of a butcher job, but I may have done wors... | ||
| New Leak detector 09/09/2025 in the HVAC Forum [HVAC: 19 Chevrolet Silverado 1500 LD LT 5.3L] Need to upgrade my freonleak detectors..Having a hard time with this vehicle. I currently have a TEK Mate that I like a lot, but it seems that I am having a harder time with the new 1234y freon. I am looking... | ||
| PAG oil ICE-32 Enhancer 09/02/2025 in the HVAC Forum AC pro sells this at all the local part stores. Any idea if the "ICE 32" additive is safe ? Or just marketing BS ? Reason for my previous post.......ran across this. Mfg: Refrigerant Oil; First Charge; R-134A; 3 Ounces; Medium viscosity ester oil charge f... |
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