Hyundai Tucson: 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 at 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:

Hyundai Tucson (LM) 2010-2015 Owners Manual: Sunroof opening and closing
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Hyundai Tucson (LM) 2010-2015 Owners Manual: Headlight
Halogen bulb WARNING Handle halogen bulbs with care. Halogen bulbs contain pressurized gas that will produce flying pieces of glass that could cause injuries if broken. Wear eye protection when changing a bulb. Allow the bulb to cool down before handling it.   Always han ...

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