Operation CHARM: Car repair manuals for everyone.

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.