Leak Check

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.

To check for leaks, apply pressure to the cooling system with radiator cap tester (commercial service tool) and radiator cap tester adapter [SST].
- Testing pressure
  - : 157 kPa (1.6 kg/cm² , 23 psi)
WARNING: Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine coolant escaping from radiator.

Fig 1: Applying Pressure To Cooling System With Radiator Cap Tester
Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION: Higher test pressure than specified may cause radiator damage.

NOTE: In a case engine coolant decreases, replenish radiator with engine coolant.
If anything is found, repair or replace damaged parts.