Engine Controls - Trouble Shooting - No Codes

• Introduction
• Symptoms
  • Symptom Diagnosis
  • Engine Fails To Crank In Park Or Neutral (A/T)
  • Engine Fails To Crank (M/T)
  • Engine Cranks But Fails To Start
  • Engine Runs At High Rpm But Will Not Idle
  • Engine Idle Speed Erratic, Engine Starts But Stops Immediately
  • Engine Stalls & Engine Misfires Or Hesitates
  • Engine Lacks Power/Poor Performance
  • Engine Backfires Into Exhaust System
  • Engine Backfires Into Inlet System
  • Engine Internal Mechanical Noises (Single Or Multiple, Light Tapping Noise, Particularly When Cold)
  • Engine Internal Mechanical Noises (Heavy Knocking Noise, Particularly On Load And When Engine Is Hot)
  • Heavy Rumbling Noise (Particularly During Hard Acceleration)
• INTERMITTENTS
  • Problem Diagnosis
  • Test Procedures
    • Intermittent Simulation