Engine: Testing and Inspection

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING





NVH Troubleshooting- Engine Noise





Use the Chart Below to Help You Find the Cause of the Symptom.
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source. If necessary repair or replace these parts.