Component Tests and General Diagnostics

RADIATOR CAP PRESSURE TEST





1. Use an adapter to attached the cap to the tester.
2. Increase the pressure until the gauge stops moving.
Main valve opening pressure: 83 - 110 kPa (0.83 - 1.1 kg/cm2, 12 - 16 psi)
Vacuum valve opening pressure: -7 kPa (-0.7 kg/cm2, -1.0 psi)
3. Check that the pressure level is maintained at or above the limit.
4. Replace the radiator cap if the reading does not remain at or above the limit.

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