201-00-3
201-00-3 Suspension System - General
Diagnosis and Test (Continued)
Benni Mini
– Loosened or worn front wheel bearings.
– Loosened or worn suspension or steering components.
– Excessive run-out of the front brake disc.
– Loosened engine or driving axle bracket.
– Engine accessories.
This section covers vibration related to suspension, tyre, etc.
Excessive automobile noise is generally the noise generated through friction between the abraded position of the
tyre and the ground. The sound of varoom made by the tyre is different from that made by the driving axle, since
the sound of the latter can vary with different load or speed. However, the tyre noise remains the same within a
certain speed scope.
In order to confirm that noise generated from tyres is not related to automobile vibration, tyres can be excessively
aerated to inspect whether the abnormal sound of tyres is variable. The bumpy degree of the automobile and noise
can change with the tyre air pressure.
Inspect vibration of other types. See Section 100-01 for relevant information.
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