PCV Valve Ventilation Hose
WARNING: This page is about a different car, the 2006 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
- Check hoses and hose connections for leaks.
- Disconnect all hoses and clean with compressed air. If any hose cannot be freed of obstructions, replace.
Courtesy of NISSAN MOTOR CO., U.S.A.