YES I i use professional hose's and it held vacuum I do not have a leak I have done a vac and recharge about 6 times and i always vac. out 545 grams.
I have done lots of a/c work and this one has thrown me a loop.

Yes I replaced the dessicant bag yes I am using R134 and I am in the US. Ambient temp 90 deg,. at 1800 to 200 rpm's the pressure are as follows
the Low is 70 and the high is at 120

Hi
I have a Robinair 34788NI when I recovered I recovered 540 grams I replaced the expansion valve, I vacuumed for 30 min. and recharged to 550 grams which is the amount stated on hood decal. lines coming out of compressor dont change in temp. hot and or cold just warm

Hello to all I have a 2014 Kia Sportage a/c does not cool the pressure read low side 80 and high side 120 I replaced the compressor reading stayed about the same a/c lines stay warm low pressure never gets cold. I replaced compressor again still the same a/c compressor clutch engages but nothing I t...