A Positive Crankcase Ventilation (PCV) system is used to prevent pollutants (blow-by gases) from being released into the atmosphere. The PCV system supplies fresh air to the crankcase through the air cleaner. The fresh air mixes with the gases and is passed through the PCV valve to the intake manifold. The gases are then reburned in the combustion process. The PCV system should be inspected every 60,000 miles (96,000 km).
For more information on the Positive Crankcase Ventilation (PCV) system, please refer to Driveability & Emission Controls of this guide.
REMOVAL & INSTALLATION
See Figures 1 and 2
- Disconnect the ventilation hose from the PCV valve.
- Remove the valve from the valve cover.
- Inspect the valve cover grommet and replace as necessary.
- Install the PCV valve in the valve cover.
- Connect the ventilation hose to the valve.