Why does my a/c take about 10 minutes to get cold? When it does it is very cold so the system is charged and once it gets cold it may only stay on for about 10-15 minutes. Is it possible the clutch is sticking? Need help? I am new to the site so I am not sure if people can view my truck specs. 2002 ranger, 4.0 v6 , 4 x 4. Thank you