Radiator Cap: Testing and Inspection

RADIATOR CAP OPENING PRESSURE CHECK

NOTE: Be sure that the cap is clean before testing. Rust or other foreign material on the cap seal will cause an improper reading.





1. Use a cap adapter to attach the cap to the tester.
2. Increase the pressure until the indicator of the gauge stops moving.
Minimum limit: 83 kPa (12 psi)
Standard value: 93 -123 kPa (14 -18 psi)
3. Replace the radiator cap if the reading does not remain at or above the limit.