Engine Controls - Trouble Shooting - No Codes - 3.4L

• Introduction
• Preliminary Inspection
• Symptoms
  • Notes
  • Symptom Diagnosis - Engine Controls
  • Diagnostic Starting Point - Engine Exhaust
  • Symptom Diagnosis - Engine Exhaust
    • Visual/Physical Inspection
    • Intermittent
  • Backfires
    • Symptom Definition
    • Preliminary Inspection
    • Fuel System
    • Sensor/System
    • Ignition System
    • Engine Mechanical
    • Additional Inspections
  • Cuts Out, Misses
    • Symptom Definition
    • Fuel System
    • Preliminary Inspection
    • Sensor/System
    • Ignition System
    • Engine Mechanical
    • Additional Inspections
  • Detonation/Spark Knock
    • Symptom Definition
    • Preliminary Inspections
    • Fuel System
    • Ignition System
    • Engine Cooling System
    • Engine Mechanical
    • Additional Inspections
  • Dieseling/Run-On
    • Symptom Definition
    • Preliminary Inspection
    • Fuel System
    • Additional Inspections
  • Hard Start
    • Symptom Definition
    • Preliminary Inspection
    • Sensor/System
    • Fuel System
    • Ignition System
    • Engine Mechanical
  • Hesitation, Sag Or Stumble
    • Symptom Definition
    • Preliminary Inspections
    • Sensor/System
    • Fuel System
    • Ignition System
  • Lack Of Power, Sluggish Or Spongy
    • Symptom Definition
    • Preliminary Inspections
    • Fuel System
    • Sensor/System
    • Ignition System
    • Engine Mechanical
    • Additional Inspections
  • Poor Fuel Economy
    • Symptom Definition
    • Preliminary Inspection
    • Fuel System
    • Sensor/System
    • Ignition System
    • Engine Cooling System
    • Engine Mechanical
    • Additional Inspections
  • Poor Fuel Fill Quality
    • Symptom Definition
    • Preliminary
    • Occasional Shut-Off Of Fuel Dispensing Nozzle
    • No Nozzle Shut-Off/Overfill
    • Continual Shut-Off Of Fuel Dispensing Nozzle
  • Rough, Unstable Or Incorrect Idle & Stalling
    • Symptom Definition
    • Preliminary Inspections
    • Fuel System
    • Sensor/System
    • Ignition System
    • Engine Mechanical
    • Additional Inspections
  • Surges Or CHUGGLES
    • Symptom Definition
    • Preliminary
    • Sensor/System
    • Fuel System
    • Ignition System
    • Additional Inspections
• INTERMITTENTS
  • Notes
  • Problem Diagnosis
  • Preliminary
  • Intermittent Conditions
    • Definition
    • Harness/Connector
    • Electrical Connections Or Wiring
    • Control Module/Component Power & Grounds
    • Temperature Sensitivity
    • Electromagnetic Interference & Electrical Noise
    • Incorrect PCM Programming
    • Duplicating Failure Conditions
    • Scan Tool Snapshot
    • Vehicle Data Recorder
• Wiring Diagrams
  • ALERO
  • Grand Am
  • Impala
  • Monte CARLO