Caravan FWD V6-3.8L VIN L (1999)
Positive Crankcase Ventilation Valve: Testing and Inspection
WARNING: APPLY PARKING BRAKE AND/OR BLOCK WHEELS BEFORE PERFORMING ANY TEST OR ADJUSTMENT WITH
THE ENGINE OPERATING.
PCV Test-Typical
With the engine idling, remove the PCV valve from its attaching point. If the valve is operating properly, a hissing noise will be heard and a strong
vacuum felt when placing a finger over the valve inlet. With the engine off, shake the valve. The valve should rattle when shaken. Replace the valve if it
does not operate properly. Do not attempt to clean the PCV valve.
