An Air Conditioner needs the Type of "Refrigerant" that is stated on the (Identi-Plate) usually located near the condenser.
If your air conditioner blows air but it's not cold air then you probably need freon in your air conditioner
r12
R134a
If you are talking about removing the freon in the a/c system then you will need a freon reclaimer.............
you would need to add freon
R134a
you need 8.00 oz. of oil and 2.25 lbs of freon
Answering "Where do you add freon to your air conditioner in your ford ranger?"
You will need a Freon recharge kit. Connect the hoses of the recharge kit to the ports on top of the air conditioner compressor. Release the Freon into the compressor.
You might need freon
you might need freon in the air condition.
== ==