http://www.markviii.org/LOD2/blend_door_repair.htm
Sounds like the Blend Door actuator, a $6.00 part but about $2,000 in labor, the dash has to be removed to do the job right.
Probably your thermostat
A/C or Heater? Be more specific.
Under the dash passenger side
I need to know how to place it,and where is it located at on the car
Passenger side behind the glove box.
Lincoln dealership parts man or go to library and get a chiltons repair manual for 69 Lincoln.
one because it is set on air only .. u need to shift it to warm first the RED mark...Secondly your heater wire must have come loose in the electricals. you should check out blendor store.com we had the same problem with our jeep, very helpful.
You have to connect the both hoses that go into the heater core on the passenger side but that will throw codes and you will have a light on the dash
try supercoupeonline.com lincolnmotorsports.com
You can replace it with '94, 95 and some 96.
First make sure that the wire to it isn't corroded off, known problem with the Marks.