Title: Diagnose oil leaks, emissions, and drivability concerns caused by the PCV system; determine needed action.
Course: Automotive Technology III (20104-III) > Section: ENGINE PERFORMANCE: Emissions Control Systems

Diagnosis should include

- checking for the presence of excessive oil in the air induction system
- checking for a plugged vacuum port/line in the PCV
- ensuring the proper PCV valve is used
- checking for the proper PCV filter/breather function.

Process/Skill Questions:

- What is blow-by?
- How might PCV faults cause excessive oil leaks?