Removal & Installation
WARNING: This page is about a different car, the 2004 Nissan Pathfinder, 2003 Nissan Pathfinder, and 2002 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
- Check valve is located in vacuum line between intake manifold and brake booster. To remove, disconnect retaining clip from firewall (if equipped). Remove hose clamps, separate hoses from valve, and remove check valve.
- Inspect check valve to ensure air flows in direction of intake manifold only. If air flows both ways or does not flow at all, replace check valve. To install, reverse removal procedure.