Hyundai Sonata: Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Emission Control System / Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve Repair procedures

Removal
1.
Disconnect the PCV hose (A).
2.
Remove the PCV valve (B).

Inspection
1.
Insert a thin stick (A) into the PCV valve (B) from the threaded side to check that the plunger moves.

   
If the plunger does not move (PCV valve is clogged), clean or replace the valve.
Installation
1.
Install in the reverse order of removal.

PCV Valve installation:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

Positive Crankcase Ventilation (PCV) Valve Description and Operation
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