yes
on a 2005 ford Taurus the AC inlet is next to the firewall on the passenger side
ac charge valve location on 1999 ford pu
Probably because the ac needs to be recharged..
maybe its a sens or relay connected with ac and the engine blower
3000 miles
For a diagram consult: http://www.2carpros.com/forum/1999-ford-taurus--ac-suddenly-not-working!-vt155404.html What year Taurus? The linked answer specifically cites the temperature blend door actuator motor. See "Related Questions" below for more about it...
If you have the defroster on the ac will run. It dries the air to help clear the inside of a foggy windshield quickly.
No you can not bypass the ac pulley but you can by a bypass pulley at the part store for about 40$. I just got one for my 2006 ford taurus the ac pump locked up and burned my belt it can take a while to put on but its worth it if you dont mind not having your ac working.
how to take off a air conditioning unit on 96 ford taurus
It is at left side of engine compartment between engine and firewall.
Try Autozone.com - they have a comprehensive on-line repair guide for the 1996-1999 Taurus/Sable.