Engine Control System - 4.6L - Troubleshooting & Diagnosis

• Symptoms - Engine Controls
  • Important Preliminary Inspections Before Starting
  • Identifying Intermittent Conditions
  • Visual/Physical Check
• Hard Start
• Surges/Chuggles
• Lack of Power, Sluggishness, or Sponginess
• Detonation/Spark Knock
• Hesitation, Sag, Stumble
• Cuts Out, Misses
• Poor Fuel Economy
• Rough, Unstable, or Incorrect Idle and Stalling
• Dieseling, Run-On
• Backfire
• 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
  • Reference Information
    • Schematic Reference
      • Notes
      • Scan Tool Reference
    • Special Tools Required
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Pump Electrical Circuit Diagnosis
  • Diagnostic Fault Information
  • Circuit/System Description
  • Diagnostic Aids
  • Reference Information
    • Schematic Reference
      • Notes
      • Special Tools Required
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel System Diagnosis
  • Diagnostic Fault Information
  • Circuit/System Description
  • Reference Information
  • Circuit/System Verification
  • Circuit/System Testing
  • Repair Procedures
• Fuel Injector Diagnosis
  • Diagnostic Fault Information
  • Circuit/System Description
  • Diagnostic Aids
  • Reference Information
    • Schematic Reference
  • Component Testing
  • Repair Procedures
• Alcohol/Contaminants-in-Fuel Diagnosis
  • Test Description
  • Reference Information
    • Special Tool
  • System Verification
  • Alcohol in Fuel Testing with Special Tool
  • Alcohol in Fuel Testing without Special Tool
  • Particulate Contaminants in Fuel Testing Procedure
  • Repair Procedures
• Electronic Ignition (EI) System Diagnosis
  • Diagnostic Fault Information
  • Circuit/System Description
  • Reference Information
    • Schematic Reference
  • Circuit/System Verification
  • Circuit/System Testing
  • Component Testing
  • Repair Procedures
• Inspection/Maintenance (I/M) System Check
  • Diagnostic Fault Information
  • Description
  • Conditions for Updating the I/M System Status
  • Monitored Emission Control Systems
  • Circuit/System Verification
  • Circuit/System Testing
• Inspection/Maintenance (I/M) Complete System Set Procedure
  • Diagnostic Fault Information
  • Description
  • Conditions for Meeting a Cold Start
  • Circuit/System Verification
  • Inspection/Maintenance (I/M) System Set Procedure
• Inspection/Maintenance (I/M) System DTC Table