AC Not staying cool

System has never been opened. Does anyone know what the low high should be for specs?
Thanks

 

all of the pressures are ambient temperature sensitive... there are pressure / temperature charts for all the Freon types that are manufactured.
A good baseline for R134a is with the compressor off and the system equalized the system pressure should be equal to the ambient temperature. 70 degrees outside, the H and L in the system should be approximately 70 psi.

 

The high does look high and low does look low. I have a feeling you have a blockage/expansion valve issue.

I replaced my entire system Condenser, receiver/drier, expansion valve, evaporator, compressor, all lines, and with my clutch fan at idle sitting still in 95+ degree weather my temp sadly stays around 55-60 and if on recirculating it can drop to 49-55. When moving it drops down to around 40. When the temp outside is around 70-80 the temp can drop below 32 though haha.

I think it's the design of the system unfortunately. Not enough air past the condenser due to the clutch fan. If you switched to all electric fans with a relay to turn on when the AC is on you would see a good difference. I just cant justify spending $400 bucks on it and the hassle I hear from the electric fans if they fail.

 

Where do you live? I can certainly recommend a guy!