I've noticed that when the temp **** is in the full cold position the air comming out of the floor or panel is colder then the outside air when the AC is NOT selected. Is the AC compressor always on when the **** is not in the off position?

 

In my model, the compressor cycles in every position but FLOOR & PANEL.

------------------
2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.

 

I have a '01 f150 with the same problem. The air is definatly colder coming out of the vents than the air outside, even with panel or floor/panel selected.