Fully charged system starting to blow warm. In the morning you can feel the ac but by afternoon it's warm air with an occasional coolish feel. Both high and low hoses are hot. Where should I start problem solving? 1995 XJS 2+2 4.0

 

You are probably mistaken that the system is fully charged if both hoses are hot. If there is no Freon pressure at all, the system low pressure switch will open and the compressor will not run at all. You probably have a leak.
Luck, RagJag

 

Lowside shows 45lbs with the system running.

 

Lowside shows 45psi with the system running.

 

With engine off ac clutch turns easy.

 

I know about AC in general, but am not familiar with the system on your 95 car. Do you know if it is a TXV system or orifice tube? In general, the static pressure, engine off, should be close to temperature in degrees F. When running with compressor on, the high side should be roughly 2-3 times outside temperature, low side should be 30-45 psi. if you are 45 low side and it is not cool to cold, are you sure the temperature door is going to cold, can you set it to hot and have it blow hot?