My air conditioner seems to have issues. It blows not so cool air the first 5 or 10 miles then it seems to get cold and works normally. When I turn off the truck for even a few minutes it does the same routine. For a while I thought the AC was toast because I did not drive very far but today had to go about 20 miles and that is when I discovered that it did work after being run for a few miles. Any ideas on where to start looking?

 

Hook up some gauges and check pressure levels.