Checking For Coolant Leaks

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

To check for leakage, apply pressure to the cooling system using radiator cap tester (commercial service tool) and Tool.

Testing pressure : 157 kPa (1.6 kg/cm ², 23 psi)

Fig 1: Checking Cooling System For Leaks

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

WARNING: Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure coolant escaping from the radiator.

CAUTION: Higher pressure than specified may cause radiator damage.