Shake

Shake can be described as unpleasant vibration perceived in the vehicle. A variety of mechanisms can cause shake depending on the degree and type of interaction between the major vehicle systems e.g., engine, suspension and body etc. Common examples of shake are: Idle shake which manifests itself when the vehicle is stationary with the engine is idling (at tick over): Road shake which is induced by individual road surface irregularities (transient) and/or by road wheel out-of-balance or radial force variation (steady-state).

See also: Shunt.