See Figures 1, 2, 3, 4, 5 and 6
Some models require the removal of the upper intake manifold in order to remove the PCV valve.
Check the PCV valve to see if it is free and not gummed up, stuck or blocked. To check the valve, remove it from the engine and work the valve by sticking a screwdriver in the crankcase side of the valve. It should move. It is possible to clean the PCV valve by soaking it in a solvent and blowing it out with compressed air. This can restore the valve to some level of operating order. This should be used only as an emergency measure. Otherwise, the valve should be replaced.
- Disconnect the oil separator hose from the PCV valve.
- Remove the PCV valve from the grommet in the crankcase.
- Inspect the grommet for deterioration.
- If necessary, replace the crankcase grommet.
- Install the PCV valve.
- Install the hose.