Initial Inspection and Diagnostic Overview: Overview

1998 Ford Taurus V6-3.0L DOHC VIN SSECTION Overview
Noise, Vibration and Harshness (NVH) are becoming more important as vehicles become more sophisticated and passenger comfort levels increase. This is designed to aid in the diagnosis, testing and service of NVH concerns.

- Sounds that are unpleasant or unwanted are called noise. The vibrational energy in a structure is transformed into air pressure waves which are detected by the ear. Noise can be very subjective in nature.

- Vibration is mechanical oscillation about a reference point. It is typically an unwanted by-product of some useful process.

- Vibrations are tactile inputs through driver interface points in a vehicle such as steering wheel, seat, floorpan, armrest, etc.

- Harshness is a ride quality issue where the customer feels that the vehicle response to the road surface is sharply transmitted to the customer.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.