Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHYUNDAI1999ELANTRA WAGON L4-2.0LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE AND REPAIRCHARGING REFRIGERANT SYSTEM
1999 Hyundai Elantra Wagon L4-2.0L
Charging Refrigerant System
1999 Hyundai Elantra Wagon L4-2.0LSECTION Charging Refrigerant System
NOTE: This step is to charge the system through the low pressure side with refrigerant in a vapor state. When the refrigerant container is placed right side up, refrigerant will enter the system as a vapor.
1. Attach an Air Conditioning Service Station as shown in figure.
2. Open the low pressure valve. Adjust the valve so that the low pressure gauge does not read over 412 kPa (4.2 kg/sq.cm, 60 psi)
3. Put the refrigerant in a pan of warm water on heat plate (maximum temperature 40 °C (104 °F) to keep vapor pressure in the container slightly higher than vapor pressure in the system.
4. Run the engine at fast idle, and operate the air conditioner.
NOTE: Be sure to keep the container upright to prevent liquid refrigerant from being charged into the system through the suction side, resulting in possible damage to the compressor.
5. Charge the system to the specified amount. Then, close the low pressure valve.
Specified amount: 675 - 725g (1.50 - 1.61 lbs)
1. Attach an Air Conditioning Service Station as shown in figure.
2. Open the low pressure valve. Adjust the valve so that the low pressure gauge does not read over 412 kPa (4.2 kg/sq.cm, 60 psi)
3. Put the refrigerant in a pan of warm water on heat plate (maximum temperature 40 °C (104 °F) to keep vapor pressure in the container slightly higher than vapor pressure in the system.
4. Run the engine at fast idle, and operate the air conditioner.
NOTE: Be sure to keep the container upright to prevent liquid refrigerant from being charged into the system through the suction side, resulting in possible damage to the compressor.
5. Charge the system to the specified amount. Then, close the low pressure valve.
Specified amount: 675 - 725g (1.50 - 1.61 lbs)
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.