Kia Sorento 2001 General Information Manual page 1251

Insufficient refrigerant
Measured pressure
Low-pressure side : 8.5~14.2 psi (58.9~98.1 kPa, 0.6~1.0 kg/cm²)
High-pressure side : 119~136 psi (824~942 kPa, 8.4~9.6 kg/cm²)
1. Step 1
(1) Check for oil stains on pipes, hoses and other parts.
(2) If oil staining is found at connection of pipes or hoses, replace O-ring ; then, evacuate, charge, and test
system.
Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper
procedures.
(3) If oil staining is not found, go to Step 2.
2. Step 2
(1) Check for leakage from following connection with a gas leak tester.
A. Inlet and outlet of condenser
B. Inlet and outlet of receiver/drier
C. Inlet and outlet of compressor
D. Inlet and outlet of cooling unit
(2) If leakage is evident, go to Step 3.
(3) If leakage cannot be found, evacuate, charge and test system. Refer to operating instructions of your
refrigerant recovery/recycling/charging station for proper procedures.
3. Step 3
(1) Check tightening torque of connection where leak was detected.
(2) If connection is loose, tighten connection to specified torque ; then evacuate, charge, and test system.
Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper
procedures.
(3) If connection is properly tightened, replace O-ring; ten evacuate, charge, and test system. Refer to
operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.
Excessive refrigerant or insufficient condenser cooling
Measured pressure
Low-pressure side : 34.1 psi (235 kPa, 2.40 kg/cm²)
High-pressure side : 327 psi (2,256 kPa, 23.0 kg/cm²)
Low-side: 35.6 psi
(245kPa, 2.50kg/cm²)
High-side: 307~326 psi
(2,119~2,247kPa, 21.6~22.9kg/cm²)
Low-side: 57~85 psi
(392~608kPa, 4.0~6.20kg/cm²)
High-side: 107~152 psi
(736~1,050kPa, 7.50~10.7kg/cm²)
Expansion valve stuck open
Faulty compressor