Airtightness Inspection

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

Use a hand-held vacuum pump to check.

Fig 1: Inspecting Check Valve

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

When connected to booster side (1): Vacuum decrease should be within 1.3 kPa (10 mm Hg, 0.39 inHg) for 15 seconds under a vacuum of (-66.7 kPa) [(-500 mm Hg), (-19.69 in Hg)]
When connected to engine side (2): No vacuum will be applied