Radiator Cap Testing
WARNING: This page is about a different variant/trim than selected.
- Remove the radiator cap, wet its seal with engine coolant, and then install it on a pressure tester.
 Courtesy of HYUNDAI MOTOR AMERICA
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- Apply a pressure of 79.43-122.58 kpa (0.81-1.25 kg/cm2
, 11.52-17.78 psi).
- Check for a drop in pressure.
- If the pressure drops, replace the cap.