FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Acceptable Noise, Vibration, and Harshness

All vehicles produce some Noise and vibration. Four-wheel drive and all-wheel drive vehicles produce different Noise and vibration than front-wheel drive and rear-wheel drive vehicles. If the driver is new to the type of vehicle, he/she may think that some sounds are abnormal when they are normal for that vehicle.