In this guide, you will find instructions on how to recharge Chevrolet air conditioner (A/C). 

If your A/C is blowing hot air, there is a chance that the system may be low on freon. Charging Chevrolet A/C system with refrigerant is easy and takes about 15 minutes.

Symptoms

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

  • AC Recharge Kit
    • Verify refrigerant type in the owner's manual or see label under the hood. 
  • Gloves
  • Protective Glasses

Procedure

  1. Park your Chevrolet in a safe area. Turn off the engine. 
  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 location

    chevy ac port location

    The 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 and 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 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.

Notes

  • As you add refrigerant you should see the compressor kick in. As you charge the system stops charging the system every minute to obtain a pressure reading.
  • Continue adding refrigerant until your gauge reaches in 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 completely empty, you need to remove the air from the system first. 
  • The location of the A/C charging port can vary between Chevrolet models but in all cases, it will be located in the engine bay. 
  • Before you start recharging Chevrolet A/C system make sure that other components are in working condition.

Chevrolet A/C may stop working if it is low on freon but also due to 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 are filled freon (R134a).

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Thank you! 

Visitor
Member since 2020-07

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.

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