The PCV valve regulates crankcase ventilation during various engine operating conditions. At high vacuum (idle speed and partial load range) it will open slightly and at low vacuum (full throttle) it will open fully. This causes vapor to be removed from the crankcase by the engine vacuum and then sucked into the combustion chamber where it is burned along with the fuel.
The PCV system will not function properly unless the oil filler cap is tightly sealed. Check the gasket on the cap and be certain it is not leaking. Replace the cap or gasket or both if necessary to ensure proper sealing.
REMOVAL & INSTALLATION
See Figures 1 through 11
Remove the right side engine cover to access the PCV valve as follows:
- Remove the 3 screws and scuff plate.
- Unbolt and disconnect the right side seat belt from the front floor panel.
- Remove the 4 bolts and right front seat.
- Remove the 2 bolts retaining the right front seat leg.
- Remove the jack and tool bag.
- Unbolt and extract jack holder.
- Remove the 9 bolts and right engine service cover.
- Locate the PCV valve in the No. 2 cylinder head cover and remove it by pulling it upward.
- Pull the PCV valve off the hose. If applicable, slide the clamp up the hose first.
- Slip the hose back onto the proper end of the PCV valve. Secure the clamp if equipped.
- Press the valve into the retaining grommet in the cylinder head cover.