vibration and harshness Archives - Transmission Digest
Did You Hear That?

In my experience NVH, (engineering speak for noise, vibration, and harshness) is one of the more time consuming and difficult diagnostic situations. The manufacturers work extremely hard at ensuring that their automobiles have as quiet environment as possible inside the passenger compartment. They have to contend with road noise from the tires, air noises while the car is at speed, mechanical noises from the operation of the engine, driveline, and other components, noise due to weather, harmonic vibrations from various components, and increasingly sensitive consumers.