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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| 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... | ||
| 2023 Silverado Compressor & AC ystem 08/26/2025 in the HVAC Forum We had this 2023 GM truck that had very poor cooling ,especially in the afternoon & 95+ temperatures. I has the "variable" compressor. The command to the compressor valve was 100%, the high side was 160 or so and the low side 80-100 at times. Seems like a... | ||
| Orifice Tube clogs documentation 08/13/2025 in the HVAC Forum Does anyone know if anyone documented clogged orifice tubes and what was the root cause. Seen some yellow, green, charcoal, etc. Wondering what is attributed to the colors, if contaminated refrigerant causes this, etc. Just curious. Web searched failed...... | ||
| 87 Corvette noisey R4 compressor 08/04/2025 in the HVAC Forum Good Morning, Belongs to my good neighbor did him a favor and overhauled his AC , new 4S comp. accum, X tube, flush evap-cond, Pag , convert to 134A about one year ago, compressor made a slight rattling noise which over the years have seen many times,(wit... |
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