Montero Sport ES 2WD L4-2.4L SOHC (1999)
Radiator Cap: Testing and Inspection
Radiator Cap Valve Opening Pressure Check
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: 64 kPa (9.2 psi)
Standard value: 74 - 103 kPa (11 - 15 psi)
3. 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 seal will cause an improper indication.
