Engine: Testing and Inspection

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING NVH

NVH Troubleshooting-Engine Noise Chart:

Use the Chart 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.