Check to make sure the fan clutch is engaging.
The truck needs a tune up.
the only difference would be the controls in the dash
Usually not.
yes
turn on the ac and open the door or window
There are a multitude of possibilities here. You need to have a system performance test done to help narrow the cause down.
its water make sure the drain hole for the AC is not cloged
It Has An Orifice Filter & A Filter Dryer, But These Are Not Changed As If You Would An Air Or Oil Filter.
in front of the comp
It can be factory installed as an option.
That year did not have 1