could be that the compressor is binding up,could even be that its over/under charged
It takes as much as 10% of your engines horsepower to run a/c
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
yes
Usually not.
turn on the ac and open the door or window
It Has An Orifice Filter & A Filter Dryer, But These Are Not Changed As If You Would An Air Or Oil Filter.
its water make sure the drain hole for the AC is not cloged
There are a multitude of possibilities here. You need to have a system performance test done to help narrow the cause down.
in front of the comp
It can be factory installed as an option.
That year did not have 1