Component Tests and General Diagnostics

1. Use an adapter to attach the cap to the tester.
2. Increase the pressure until the gauge stops moving.
Main valve opening pressure: 81.4-108 kPa (0.83-1.1 kg/sq cm, 11.8-15.6 psi)
Service Limit: 65 kPa (0.65 kg/sq cm, 9.2 psi)
3. Check that the pressure level is maintained at or below the limit.
4. Replace the radiator cap if the reading does not remain at or below the limit.

NOTE: Be sure that the cap is clean before testing, since rust or other foreign material on the cap seal will cause an incorrect indication.