If your Hyundai A/C has been blowing hot air not cold, there is a chance the system is low on refrigerant. In this guide, we will show you how to recharge the air conditioner on your Hyundai.
Charging Hyundai A/C system is very easy and can take between up to 20 minutes depending on the system capacity.
Start the engine and let it idle.
Turn the air conditioner ON. Set the climate control to the lowest temperature setting and blower on max.
Open the hood of your Hyundai. Locate the low-pressure air conditioner service port and remove the cap.
Locate the air conditioner charging port or service port. In the Elantra, the A/C port is located behind the engine near the firewall.
If you are still having trouble locating the A/C charging port on your Hyundai this video explains it all.
Next, connect the A/C charging kit.
Once you connect the gauge, take a look at the gauge to read the pressure in your air conditioner system. If the pressure is low the gauge reading will be in the white zone.
If the pressure is normal then the gauge should be in the green or blue area depending on the A/C kit that you are using. You should not have a reading on the HIGH / RED zone except when the car is turned off, in which case it is normal.
Always keep the can UPRIGHT. As you charge the system shake the can every two or three seconds while you are charging.
Every few seconds release the trigger to stop the charging process. Take a look at the pressure gauge. (It is normal for the gauge to show overcharged with the engine turned off.)
Don't overcharge the A/C system. Stop recharging the A/C system once you get the pressure within the acceptable range. Measurement should only be taken with the engine running.
Detach the quick connect from the A/C port. Reinstall the cap. Don't overtighten the cap. Close the hood and enjoy your AC system.
Keep in mind that a system that has a large leak may loose the refrigerant quickly and will require repair before being topped off with refrigerant.
Yes as long as the vehicle is under manufacturers warranty.