Section 12 (Engine Controls - 6.6L - Troubleshooting & Diagnosis)

• Symptoms - Engine Controls
  • Important Preliminary Inspections Before Starting
  • Visual and Physical Inspection
  • Verify Customer's Concern
• Hard Start
• Surges/Chuggles
• Lack of Power, Sluggishness, or Sponginess
• Fuel Knock/Combustion Noise
• Hesitation, Sag, Stumble
• Cuts Out, Misses
• Poor Fuel Economy
• Rough, Unstable, or Incorrect Idle and Stalling
• Excessive Smoke (Black)
• Excessive Smoke (Gray or Blue)
• Excessive Smoke (White)
• Malfunction Indicator Lamp (MIL) Diagnosis
  • Diagnostic Fault Information
  • Circuit/System Description
  • Reference Information
    • Schematic Reference
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Engine Cranks but Does Not Run
  • Diagnostic Fault Information
  • Circuit/System Description
  • Diagnostic Aids
  • Reference Information
    • Schematic Reference
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
  • Repair Verification
• Fuel Pressure Regulator Diagnosis
• Fuel System Diagnosis
  • Diagnostic Fault Information
  • Circuit/System Description
  • High Pressure System
  • Return System
  • Diagnostic Aids
  • Reference Information
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Return System Diagnosis
  • Diagnostic Fault Information
  • Circuit/System Description
  • Diagnostic Aids
  • Reference Information
    • Special Tools Required
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Leaks
• Fuel System Diagnosis - High Pressure Side
  • Diagnostic Fault Information
  • Circuit/System Description
    • High Pressure System
    • Return System
  • Diagnostic Aids
  • Reference Information
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Injector Balance Test with Tech 2 (Manual Transmission)
  • Diagnostic Fault Information
  • Circuit/System Description
  • Diagnostic Aids
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Injector Balance Test with Tech 2 (Automatic Transmission)
  • Diagnostic Fault Information
  • Circuit/System Description
  • Diagnostic Aids
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Tank Leak Test
  • Notes
  • Leak Check Procedure
• Contaminants-in-Fuel Diagnosis
• Inspection/Maintenance (I/M) System Check
  • Diagnostic Fault Information
  • Circuit/System Description
  • Conditions for Updating the I/M System Status
  • Monitored Emission Control Systems
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Inspection/Maintenance (I/M) System DTC Table
• Inspection/Maintenance (I/M) Complete System Set Procedure
  • Diagnostic Fault Information
  • Circuit/System Description
  • Conditions for Meeting a Cold Engine
  • Diagnostic Aids
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Heater Inoperative
  • Diagnostic Fault Information
  • Circuit/System Description
  • Reference Information
    • Schematic Reference
  • Circuit/System Testing
  • Component Testing
  • Repair Procedures
• Fuel Heater Always On
  • Diagnostic Fault Information
  • Circuit/System Description
  • Reference Information
    • Schematic Reference
  • Circuit/System Testing
  • Repair Procedures