Ok new problem. On the right side under the glove box area of the A/C , Heater core box. There is a switch/sensor that has a probe that goes into the evaporator box. That switch has been knocked off. Where can I get one,is it needed,and or can I rig it? I get that it controls the a/c, and that it goes to the thermostat. Can I wire around it. Is there a universal replacement? I am open to any and all help on this. PLEASE and Thanks in advance.

 

I have finally found it on an old wiring diagram. it is called an A/C thermostat. it has three wires black shows ground, dark blue show to low pressure A/C switch, light blue shows to A/C request.

My question is still what can replace this,and or can i wire around it?