RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
Fig. 20 Shake PCV - 5.9L
4. Turn engine OFF and remove PCV valve from valve cover. The valve should rattle when shaken.
5. Replace the PCV valve and retest the system if it does not operate as described in the preceding tests. Do not attempt to clean the old PCV valve.
6. If the paper is not held against the opening in valve cover after new valve is installed, the PCV valve hose may be restricted and must be replaced.
The passage in the intake manifold must also be checked and cleaned.
7. To clean the intake manifold fitting, turn a 1/4 inch drill (by hand) through the fitting to dislodge any solid particles. Blow out the fitting with shop
air. If necessary use a smaller drill to avoid removing any metal from the fitting.
