Positive Crankcase Ventilation: Testing and Inspection
PCV System:
This test is to see if PCV System is functioning properly.
If oil sludging or leaks are noted, verify that the CV oil/air separator is not plugged. This may be done by verifying that smaller nipple (connected to hose item #65) can be blown through or that 1.52 mm (.060") plug gage will fit into the orifice inside the nipple. If plugged, replace the CV oil/air separator assembly.