Subaru Workshop Manuals
Hatchback 4WD F4-1781cc 1.8L (1983)
Powertrain Management > Emission Control Systems > Positive Crankcase Ventilation > Component Information > Description and Operation > Page 1324
Positive Crankcase Ventilation: Testing and Inspection
Check all PCV hoses and connections for leaks and clogging.
Check the oil filler cap gasket for damage or leaking.
Check the PCV valve by the following procedure:
a. Disconnect the hose on the PCV valve while the engine is running.
or replace the valve as necessary.
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