Radiator Cap Testing

Inspection

Cap Testing

1. Remove the radiator cap, wet its seal with engine coolant, then install it to pressure tester.




2. Apply a pressure of 93 - 123kPa (0.95 - 1.25kgf/cm2, 14 - 19psi)
3. Check for a drop in pressure.
4. If the pressure drops, replace the cap.