What should be inspected in a PCV system?

In a PCV (Positive Crankcase Ventilation) system, the inspection should encompass both the presence and condition of the components. It's essential to ensure that the PCV valve is not only present but also functioning correctly, as it plays a critical role in the vehicle's engine ventilation system.

Inspecting for the presence ensures that all necessary parts, including the valve itself and related hoses, are intact and installed. Additionally, evaluating the condition of these components is crucial because even if parts are present, they might not function effectively if they are clogged, damaged, or otherwise in poor condition. A failing PCV system can lead to increased emissions, decreased engine performance, and potentially harmful conditions for the engine over time.

Thus, the comprehensive approach of checking both presence and condition provides a more thorough assessment of the PCV system's functionality, ensuring it effectively manages crankcase gases.