5. Check Radiator Cap

Apply pressure to cap with a tester.

1. Radiator cap relief pressure: 59 - 98 kPa (0.6 - 1.0 kg/cm ²,9 - 14 psi 

OK or NG 

1. OK: GO TO 6.
2. NG: Replace radiator cap.

Fig 1: Checking Radiator Cap

Courtesy of NISSAN MOTOR CO., U.S.A.