Diagnostic Procedures

Customer Interview
The road test and customer interview (if available) provide information that will help identify the concern and will provide direction to the correct starting point for diagnosis.

Identify the Condition
NVH usually occur in four areas:
- tires
- engine accessories
- suspension
- driveline

It is important, therefore, that a NVH concern be isolated into its specific area(s) as soon as possible. The easiest and quickest way to do this is to carry out the Road Test. Road Test