Is your Chevrolet A/C blowing hot air? Learn how to fix it by recharging the freon on the air conditioner.


Common symptoms that you may notice.

  • A/C blowing hot air
  • A/C blows cold, then hot
  • A/C blows cold sometimes
  • A/C blows cold air, then stops

What you will need

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AC Pro Car Air Conditioner Synthetic R134A Refrigerant, AC Recharge Kit with Hose and Gauge, 20 Oz,...
AC Pro Car Air Conditioner Synthetic R134A Refrigerant, AC Recharge Kit with Hose and Gauge, 20 Oz,…
Replaces lost R-134a refrigerant and oil in automotive A/C system; Extra long 24 inch recharge hose for accessing hard to reach service ports
  • AC Recharge Kit
    • Verify the refrigerant type in the owner’s manual or see the label under the hood.
  • Gloves
  • Protective Glasses


  1. Park the Chevrolet in a safe area. Turn off the engine.park chevrolet vehicle 
  2. Pull the hood release under the dashboard until you hear your Chevrolet hood pop open.
  3. To add freon to your Chevrolet, you need to locate the A/C low-pressure charging port in the engine bay.  chevy ac port locationchevy ac port locationThe A/C charging kit connector will not fit on the port for the high-pressure line.
  4. Carefully remove the cap from the low-pressure port by twisting it counterclockwise. Connect your A/C hose to the A/C charging port. You are almost ready to add freon to your vehicle A/C system. Don’t start adding refrigerant to your Chevrolet A/C system yet.
  5. Start the engine, turn A/C on, and set it to the max cold setting. Set the blowing fan to maximum speed. Now you are ready to recharge the Chevrolet A/C system. Add refrigerant as directed by the A/C recharge kit you are using.
  6. Press and hold the trigger until your Chevrolet A/C is charged. This process can take several minutes. When the A/C system is low on freon, the compressor may not be engaged at first.


  • As you add refrigerant, you should see the compressor kick in. As you charge, the system stops charging every minute to obtain a pressure reading.
  • Continue adding refrigerant until your gauge reaches the charged range. Do not allow the system to overcharge.
  • This procedure is used to top off the Chevy A/C system. If your A/C system is empty, you must remove the air from the system first.
  • The A/C charging port location can vary between Chevrolet models, but it will be located in the engine bay in all cases.
  • Before recharging the Chevrolet A/C system, ensure that other components are in working condition.

Chevrolet A/C may stop working if it is low on freon and other problems such as A/C compressor not working, bad A/C clutch, bad temperature sensor, major freon leak, etc.

The instructions in this guide will help the owner of Chevrolet Spark, Sonic, Bolt, Volt, Cruze, Malibu, Impala, Camaro, Corvette, City Express, Trax, Equinox, Traverse, Tahoe, Suburban, Colorado, Silverado, Sonic, Blazer, Astro, HHR, Uplander, Avalanche, etc. Charge the A/C that is filled freon (R134a).

We hope you find this “Chevrolet – Recharge Air Conditioner with Freon” guide helpful. Check these troubleshooting and repair guides for more help on your Chevrolet vehicle.

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One Comment

  1. Anonymous says:

    Hey.. Great article. I was hoping to add some more information for the early symptoms. One which is quite rare, but not impossible is when your A/C does not throw any air.
    That is obviously a poor sign, and can simply mean that the ‘Fan’ is not working. In this case, You might need to buy some extra parts or take it for repair.
    If you are feeling more adventurous, you can try to find the problem. It might be something as similar as a broken circuit or a bad motor.