A/C works perfectly in the Morning and Evening, but basically doesn’t work once the cabin gets hot from the sun. Checked Freon level with new canister with a pressure gauge and it shows that it’s in the green which means fully charged. There is a hissing noise in the dash that is heard when fan is on low only. Will blow ice cubes in the morning or at night, so I know there is no it is working. Drove it for about 30 miles and it finally started cooling the cabin. But it almost acts like there’s a Temp sensor that is not working properly when the sun is out!