How Often Should Car Air Conditioning Freon Be Replaced?

[DelConnor]

There is no fixed replacement interval for car air conditioning freon. Generally, when the cooling effect of the car air conditioner deteriorates, you can check whether the freon is insufficient and replace or replenish it if necessary. The freon is added to the air conditioning refrigerant storage tank in the car. The steps for adding freon to a car air conditioner are as follows: 1. Evacuate the system and close the manual valves on the pressure gauge as well as the high and low pressure manual valves; 2. Connect one end of the hose to the injection valve connector of the freon tank; 3. Open the refrigerant tank, loosen the nut on the pressure gauge hose to allow some gas to escape, then close it; 4. Open the high-pressure side manual valve and invert the tank; 5. Inject the specified amount of liquid refrigerant, then close the refrigerant injection valve and the high-pressure manual valve.