EGR System - Gasoline

• Description
• Operation
  • Vacuum Modulated EGR System
    • Ported EGR Valve
  • BACKPRESSURE EGR System
    • Negative Backpressure EGR Valve
  • EGR Thermal Vacuum Switch
• System Testing
  • Functional Tests
    • Vacuum Modulated (Ported) & Negative Backpressure Types
  • EGR-TVS Test (Hot)
  • EGR Bleed Solenoid Check (5.0L/5.7L Federal W/ A/T)