PCV Valve
- Inspect PCV system for air leaks or flow restrictions. Check grommet and hose for splits and cracks. Repair or replace components as required.
- Remove PCV valve from from grommet and remove hose. Shake PCV valve and confirm that plunger is free to move and rattle. Replace PCV valve if plunger is not free.
- Start engine and run at idle. remove PCV valve from grommet, leaving connecting hose attached. Ensure vacuum is drawn through PCV valve. If vacuum is not felt, check connecting hose or intake fitting for blockage.