Engine Controls - Tests W/O Codes

• Introduction
• Symptoms (Gasoline)
  • Notes
  • How To Use This Section
• Hard Start
  • Symptom Definition
  • Possible Cause & Correction
• Stalls After Starting
  • Symptom Definition
• Hesitation, Sag Or Stumble
  • Symptom Definition
• Vehicle Surges
  • Symptom Definition
• Lack Of Power Or Sluggish
  • Symptom Definition
• Engine Backfires
  • Symptom Definition
• Cuts Out, Misses
  • Symptom Definition
  • Misfire Isolation
• Rough, Unstable Or Incorrect Idle
  • Symptom Definition
• Engine Will Not Idle
  • Symptom Definition
• Poor Fuel Economy
  • Symptom Definition
• Engine Dieseling/Run-On
  • Symptom Definition
• Detonation/Spark Knock
  • Symptom Definition
• Excessive Exhaust Emission (Odors)
  • Symptom Definition
• Symptoms (Diesel)
  • Engine Won't Start
  • Engine Stalls At Idle
  • Engine Starts, Idles Rough W/O Unusual Noise Or Smoke Table
  • Engine Starts & Idles W/Excessive Noise And/Or Smoke Table
  • Engine Idles But Misfires Above Idle
  • Engine Will Not Idle
  • Fuel Leaks With No Other Engine Malfunction
  • Low Engine Power
  • "Rapping" Noise From Cylinders
  • Excessive Noise With Black Smoke
  • Engine Will Not Shut Off With Key
• Intermittent Problem Diagnosis
• Test Procedures
  • Intermittent Simulation
• Intermittent Trouble Shooting
  • Symptom Definition
  • Possible Cause & Correction