It was 85F, low humidity, and seems like the high side was either 250 or 275, i don't recall. If you DO recall correctly, those pressures at that ambient temperature suggest an overcharge. Thank you. My goal here is to improve my understanding more than to get answers about my truck. It's just...wa...

[/quote]The only reasons one would have a fan blowing in front of the grille on a hot day during charging (airflow toward the condenser and radiator) are to keep the high pressure from rising too high and disengaging the compressor; and/or to help prevent the vehicle from overheating. I don't think ...

Tim wrote: ↑Fri Aug 02, 2024 6:04 pm Go back and have the tech provide low and high side readings. We will be able to tell if it is within range.

It was 85F, low humidity, and seems like the high side was either 250 or 275, i don't recall.

Vehicle: 1997 Chevrolet K1500 Silverado 305V8 R134 A shop recently recharged the A/C in my pickup. It was not empty but was sufficiently low on R134 the compressor wouldn't kick on. I noticed the tech didn't put a floor fan in front of the condensor/grille while doing the work. I assume this is gonn...