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Home >> Kia >> 2003 >> Optima SE, 2.4 6 >> Repair and Diagnosis >> General Information >> Specifications Index >> Common Specs & Procedures >> Engine Cooling >> Radiator Cap Pressure

Radiator Cap Pressure

Main Valve Opening Pressure is 14-18 psi (0.98-1.27 kg/cm2 ). Main Valve Closing Pressure is 12 psi (0.85 kg/cm2 ).