A reputable HVAC service Co. will locate and repair the leak and recharge your system.
yes
nowhere
Never, unless you have a leak.
how do you check freon on central ac and what should the guages read.
Usually there is a leak somewhere in the system.
Your 1993 Ford Taurus air conditioning system has a Freon capacity of 5.5 pounds. You should never overfill the air conditioning Freon.
Adding freon to an air conditioning unit should only be done by a certified technician. It is in fact illegal for anyone to add freon to air conditioning that isn't properly certified, so one would add freon by calling in a certified technician to do it for them.
The 1994 for Ranger pickup truck air conditioning system has a Freon capacity of five pounds. The air conditioning Freon should never be overfilled.
You should not put any oil in a Ford air conditioning compressor. The air conditioning compressor runs on Freon. The system should take about one pound of Freon.
The amount of Freon you will need to recharge your air conditioning system is dependent upon how low the Freon level is. You should begin with a one pound bottle of Freon.
freon is just a brand name
Never, an air conditioner is a closed system. If you need to add refrigerant you have a leak that needs to be repaired. In theory you should never have to add freon. but there can be some residual loss. maybe after five to ten years.