Glossary of Automotive Terms Crankcase Ventilation System

Crankcase Ventilation System

Created by William Orellana Updated September 26, 2024 Popularity: 67 Views

Crankcase Ventilation System:

The crankcase ventilation system is an essential component in an automobile's engine that helps to regulate the pressure inside the engine's crankcase. The system is designed to prevent the buildup of harmful gases and pressure that can occur as a result of the combustion process in the engine.

Technical Explanation:

Common Symptoms:

  • Excessive oil consumption
  • Poor engine performance
  • Increased emissions
  • Oil leaks
  • Engine misfires
  • Check engine light illuminated

Diagnosing:

  • Visual inspection of the ventilation system components for any signs of damage or blockages
  • Checking the PCV valve for proper operation
  • Performing a vacuum test to check for leaks in the system
  • Using a smoke machine to detect any leaks in the system

Common Repairs:

  • Replacing the PCV valve
  • Cleaning or replacing the ventilation hoses
  • Checking and replacing the breather filter
  • Repairing any leaks in the system
  • Cleaning or replacing the crankcase ventilation system components

It is important to regularly maintain and inspect the crankcase ventilation system to ensure that it is functioning properly and to prevent any potential issues that may arise from a malfunctioning system.