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How to Put Freon in a 2018 Chevy Malibu?

The 2018 Chevy Malibu is renowned for its smooth performance and impeccable design. However, like all vehicles, it requires regular maintenance. One common task car owners may face is recharging the air conditioning system with Freon. This step-by-step guide will provide comprehensive instructions on safely and efficiently adding Freon to your 2018 Chevy Malibu.

Understanding the Importance of Correct Freon Levels

Ensuring that your car has the correct amount of Freon is crucial. Freon, a refrigerant, ensures that the air conditioning system functions optimally. If your Chevy Malibu’s air conditioning isn’t cooling as effectively as before, it might be time for a Freon recharge.

Step-by-Step Guide to Adding Freon to Your 2018 Chevy Malibu

1. Gather Necessary Tools and Materials: Before starting the process, ensure you have:

  • A can of R-134a refrigerant (the 2018 Chevy Malibu uses this specific type)
  • Protective gloves and glasses
  • An A/C Pro recharge hose (compatible with R-134a)
  • A thermometer

2. Safety First: Always wear protective gloves and glasses. The refrigerant can be extremely cold and cause frostbite if it directly touches your skin.

3. Locate the Low-Pressure Service Port: Open the car’s hood and locate the A/C compressor. It typically has two ports: high and low. For recharging with Freon, you’ll focus on the low-pressure port, which is usually on a larger diameter metal tubing and often labeled with an “L.”

4. Attach the Charging Hose: Take the A/C Pro recharge hose and attach its end to the can of R-134a refrigerant. Then, connect the other end to the low-pressure service port. Ensure a snug fit to prevent leakage.

5. Start the Car: Turn on your vehicle and set the A/C to the maximum cold setting. Allow the car to run for a few minutes.

6. Monitor the Pressure: Look at the gauge on the charging hose. It will indicate the current pressure level. The ideal pressure for the 2018 Chevy Malibu typically ranges between 25-45 psi when the A/C is running at maximum cold. However, always refer to your car’s manual to verify the recommended pressure level.

7. Start Adding the Freon: If the pressure is below the recommended level, add the refrigerant by pressing the trigger. Do this in short bursts and monitor the gauge to ensure you don’t overcharge the system.

8. Check the A/C Temperature: Use a thermometer to check the temperature of the air coming from the vents. A well-functioning A/C system should blow air at temperatures between 35-45°F.

9. Finish and Disconnect: Stop the Freon flow once you’ve achieved the desired temperature and pressure. Remove the charging hose from the service port and close the hood.

10. Test Drive: It’s always a good practice to take your car for a short drive to ensure the A/C system maintains the cool temperature consistently.

How much Freon to put in a 2018 Chevy Malibu?

The 2018 Chevy Malibu requires approximately 19.04 oz of freon. Please note that these capacities are approximate and can vary based on the specific conditions of your vehicle. As your 2018 Chevy Malibu user’s manual recommends, always check fluid levels when adding or refilling. If you’re uncomfortable doing this, it’s best to take your vehicle to a professional mechanic.

Common Mistakes to Avoid

  • Overcharging the System: This can lead to reduced cooling efficiency and potential damage to the compressor.
  • Using the Wrong Refrigerant: The 2018 Chevy Malibu uses R-134a. Using a different refrigerant can harm the A/C system.
  • Skipping Safety Gear: Always prioritize safety by wearing protective glasses and gloves.


Maintaining the right Freon levels in your 2018 Chevy Malibu ensures optimal A/C performance, especially during hot summer months. While the process is straightforward, always prioritize safety and refer to the owner’s manual for specific guidelines and recommendations. Should you face any challenges or uncertainties, don’t hesitate to consult with a professional mechanic.