The ac button will not activate the ac clutch, but the auto button will. This has been like this for 3 years and been fine. Now the ac is not staying cold when i start up and do not move. I have to get going down the road before it will get cold. It now is to the point where i thought i needed to add more refrigerant, so i bought a can of 134a and a connector hose with a gauge on it and hooked it up while ac clutch engaged and auto setting on 60*. The gauge was reading above 75lbs and would slowly rise and fall to 45lbs. This seems high to me what do i need to do?
