Kia Niro: 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.

Run the engine at idle, then put a finger over the open end of the PCV valve and make sure that intake manifold vacuum can be felt.

  

The plunger inside the PCV valve will move back and forth in vacuum.

4.

If the vacuum is not felt, inspect PCV operation. If operating correctly, clean or replace the vapor hose.

Schematic diagrams
Schematic Diagram ...

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

Other information:

Kia Niro 2017 (DE HEV) Service Manual: Special service tools
Special Service Tools Tool Name / Number Illustration Description Fuel Pressure Gauge 09353-24100 Used for measuring the pressure in fuel line Fuel Pressure Gauge Adapter 0K353-D ...

Kia Niro 2017 (DE HEV) Service Manual: Specifications
Specification Item Specification Power source 3 V Operating temperature -22 - 167°F (-30 - 75°C) RF Modulation FSK LF Modulation ASK ...

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