Title: Inspect, test, and service positive crankcase ventilation (PCV) filter/breather, valve, tubes, orifices, and hoses; perform the necessary action.
Course: Automotive Technology II (20104-II) > Section: Engine Performance: Emissions Control Systems

Procedure should include

- checking for proper PCV filter/breather function
- referring to service materials and following manufacturer guidelines.

Process/Skill Questions:

- Why does a crankcase need ventilation?
- What is the function of a PCV valve?
- What is the difference between a vehicle that uses a PCV vs. an orifice system?