PCV Valve Inspection [L3]: Notes
WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the negative battery cable.
- Remove the intake manifold. (see INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L3] ).
- Remove the PCV valve.
- Blow through the valve and verify that air flows as specified.
- If not as specified, replace the PCV valve.