Twenty ounces includes 3 oz of oil only, with the rest being r134a. System previously had an abrupt loss of pressure due to damage to condenser, which has a receiver built into it. My thoughts were a possible bad compressor as well, but since the low side increased when the clutch engaged from 50 to 80, and high side increased a few points, it made me think either a stuck open expansion valve since it sat for 2-3 years empty or a stuck inlet valve on the low side for the compressor. Oil and refrigerant was recovered, system placed under vacuum, and refilled again after sitting for a day. After feeding in oil at 3oz and remaining total volume as r134a to reach 1.3lbs, slowly, compressor clutch engaged and low side pressure dropped down to 30, high side increased up to 200. Current ambient temperature 83 Fahrenheit, humidity 80%, with inner engine bay reading 110 Fahrenheit. After some fiddling, pressure on low side reads between 20-30 with increasing rpm, resting idle 42 approx, high side 230-280. Cabin temperature blowing from 45 Fahrenheit (under load) to 50-54.
Largest concern is when the engine/system is off and equalizes out, both sides sit around 110, in an engine compartment temperature of 100, and unsure if this is slightly too high, due to the low side resting at 110.
Tuesday, July 5th, 2022 AT 4:00 PM