Tune-up and Engine Performance Checks

• Service Precautions
  • Vehicle Damage Warnings
• Testing and Inspection
  • Initial Inspection and Diagnostic Overview
  • Symptom Related Diagnostic Procedures
    • Check Engine Light On
    • Cranks, Won't Start
      • Fuel Injected
    • Engine Backfires
      • Fuel Injection
        • With Air Injection
    • Engine Pings or Knocks
      • With Knock Sensor
    • Engine Runs Rough, Misses
      • Fuel Injected
    • Engine Starts, Then Dies
      • Fuel Injected
    • Engine Stumbles or Hesitates on Acceleration
      • Multiport Fuel Injection
    • Engine Surges
      • Fuel Injection
    • Hard Starting, Excessive Cranking
      • Fuel Injected
    • Idle Speed Problems
      • With Computer Controls
        • With Manifold Absolute Pressure Sensor (MAP)
          • Multiport Fuel Injection
    • Poor Acceleration, Lack of Power
  • Component Tests and General Diagnostics
    • Test Drive
• Service and Repair
  • Procedures
    • Tune-Up ServiceSteps
• Tools and Equipment
  • Electrical / Mechanical Repair