How to Recharge Your Car’s AC System

Has your car’s air conditioning system lost its cooling effect? ​​Refrigerant will slowly leak out of your car’s air conditioning system over time. If you go to a car repair shop for maintenance, it will cost you a lot of money. In order to save money, this article teaches you how to DIY a trick to charge your car’s air conditioning.

How to Recharge Car A/C?

Recharging your car’s air conditioning system to make it blow cold air again is a simple DIY task that takes about 15 minutes.

• Check the ambient temperature: If it’s below 55°F (about 13°C), it’s not recommended to add refrigerant. Use a hose with a pressure gauge and refer to the chart on the refrigerant package or the maintenance manual to determine the appropriate charging pressure for your vehicle.
• Locate the low-side service port: It’s usually found on the line connecting the accumulator and the compressor. Consult your manual to confirm the location.
• Clean the port: Wipe away any dust with a cloth and remove the cap.
• Connect the hose: Attach the charging hose to the low-side service port, ensuring a secure connection.
• Add refrigerant: Follow the instructions on the refrigerant package.
• Monitor the pressure: Determine the correct pressure based on the ambient pressure chart and continuously monitor the pressure reading. When the low-side pressure reaches approximately 25-30 PSI (about 1.7-2.1 bar), the compressor clutch should engage.

Note: Different years and models of vehicles may use different refrigerants (such as R12, R134A, 1234YF). Always refer to your manual and follow the relevant regulations. If you’re unsure about the operation, please seek professional assistance.

4 Signs That Your Car A/C Needs to be Recharged

Blowing hot air: If your air conditioner blows warm air instead of cold, it often means the refrigerant has severely depleted, so check the air conditioning performance comprehensively.

Refrigerant leak: If there is frost or moisture around the air conditioning components, and the air conditioner is not cooling, this is likely a sign of a refrigerant leak, and prompt repair is imperative.

Clutch not engaging: When you turn on the air conditioner and don’t hear a clicking sound, it may mean that due to refrigerant issues, the clutch has failed to engage properly, thereby affecting the operation of the entire cooling system.

Odd smells from vents: Strange odors emanating from the air conditioning vents are not only unpleasant but may also be the result of moisture or mold growth within the system, making timely cleaning and maintenance crucial.

How often should I recharge my car A/C?

It is recommended to refill the car air conditioner with refrigerant every two years to maintain optimal cooling effect. Be careful not to overfill, so as not to backfire. If you start to feel a temperature difference, your air conditioner may need to be recharged.

Summary

If you encounter any problems during operation or are unsure how to proceed, always seek professional help. With regular maintenance and care, your car air conditioner will provide you with continuous coolness and comfort on hot summer days.

Related blogs

• How do I replace my windshield wipers?
• How To DIY Repair A Tire
• DIY Car Paint Repair Tutorial: Easily car touch up paint Your Car’s
• How Often Should I Change Engine Oil