Hyundai Sonata: Crankcase Emission Control System / Repair procedures

Inspection
1.
After disconnecting the vapor hose from the PCV valve, remove the PCV valve.
2.
Reconnect the PCV valve to the vapor hose.
3.
Inspect the PCV vlave operation.
(1)
Run the engine at idle.
(2)
Put a finger on the open end of the PCV valve.
(3)
Make sure that intake manifold vaccum can be felt.
   
The plunger inside the PCV valve will move back and forth at vacuum.

4.
If the vacuum is not felt, clean or replace the vapor hose.
Schematic Diagrams
Schematic Diagram ...

Positive Crankcase Ventilation (PCV) Valve Description and Operation
Operation Principle ...

Other information:

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Hyundai Sonata LF 2014-2019 Owners Manual: Side Curtain
To use the side curtain: 1. Pull up the curtain by the hook (1). 2. Hang the curtain on both sides of the hook. NOTICE Always hang both sides of the curtain on the hook.This could cause damage to the side curtain if only one side of the curtain is hooked. Do not let any foreign material get in ...

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