Grand Cherokee 4WD L6-242 4.0L VIN S MFI (1993)
PCV Orifice: Service and Repair
INSPECTION AND REPAIR
1. Inspect inlet air hose for damage or restriction.
2. Inspect valve cover excessive for oil sludge build up.
3. Inspect outlet nipple orifice for blockage.
4. Inspect Crankcase Ventilation (CCV) outlet hose for damage or restriction.
5. Inspect intake manifold fitting for restriction.
6. Clean with solvent or replace any necessary items.
