Identifying Signs of Incorrect Wheel Alignment
If you want to detect incorrect steering geometry while driving, you must first make sure that both front tires are the same grade, have the same profile depth and the same prescribed air pressure.
Are the steering wheel spokes symmetrical when driving straight? A crooked steering wheel is often a sign of improper wheel installation.
Restless movement in a straight line; this is especially easy to notice when driving on smooth snowy or icy roads. Excessively wide tires can also impair straight-line tracking, despite proper wheel alignment.
Does the Vectra pull to the side on a completely flat road and with the steering wheel released?
After turning, does the steering automatically return to the straight position?
(Material copied from this website: «OpelBook.ru»)
Look at the front wheels from a distance of five to ten meters: are they straight and symmetrical in relation to each other?
Is the tyre profile worn on one side? Under aggressive driving conditions, it is not unusual for the outer edges of both front tyres to show more wear than the inner edges.
Dimpled wheels indicate a hard contact with the curb, which causes the front shock absorber/suspension geometry to easily deviate from the correct angle.
Other causes of improper wheel alignment may include worn out ball joints or rubber mounts, or unprofessional repairs after an accident.

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