Kia Sorento 2001 General Information Manual page 1255

Leak test
After evacuating system, refer to operating instructions of your refrigerant recovery/recycling charging station
for proper procedures. Check for leaks.
1. Connect a full refrigerant container to the service valve.
2. Open the high-pressure manual valve to charge system with refrigerant gas.
3. When low-pressure gauge reads 14 psi (98 kPa), close high-pressure manual valve.
4. Use a gas leak detector to check the system for leaks. If a leak is found, repair faulty component or
connection, then evacuate system again. Refer to operating instructions of your refrigerant
recovery/recycling/charging station for proper procedures.
Checking refrigerant pressure
1. Connect manifold gauge set.
2. Operate engine at 2000 rpm and set air conditioner to maximum cooling.
3. Measure low-and high-pressure sides
Normal pressure
Low-pressure side: 20~41 psi (137~285 kPa, 1.40~2.91 kg-cm²)
High-pressure side: 185~263 psi (1.275~1.815 kPa, 13.0~18.5 kg-cm²)