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: CVVT (Continuous Variable Valve Timing) System Repair procedures
Inspection Variable Force Solenoind (VFS) Refer to Engine Control / Fuel System - "Variable Force Solenoind (VFS)" CVVT Oil Control Valve (OCV) Refer to Engine Control / Fuel System - "CVVT Oil Control Valve (OCV)" Removal ...

Kia Niro (DE HEV) Owners Manual: Snow tires
If you mount snow tires on your vehicle, make sure they are radial tires of the same size and load range as the original tires. Mount snow tires on all four wheels to balance your vehicle’s handling in all weather conditions. Keep in mind that the traction provided by snow tires on dry roads ...

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