First try to determine whether the shake/wooble originates from the front or rear. The old rule of thumb is: If you feel the shake/wooble mostly in the steering wheel it originates from the front (you might also see the steering wheel shaking). If you feel the shake/wooble mostly in the "seat of your pants" it orginates in the rear.
To further assit in determing the cause. Remove the rear tires and put them on the front and vise versa. Drive the car, do you still feel the shake in the same place or did it move? If it moved to the front now as opposed to the rear (during the first test drive) or vise versa then the tires or rims are the cause of the shake/wobble. Now you have narrowed it down to two wheel/tires. Have the tires checked for knots or out-of-round conditions. Also, have the rims checked for warpage or other damage.
If the shake/wobble still occurs in the same place (lets' say front for instance) the check for loose or worn wheel bearings, tie rods, worn rack and pinion assembly, strut mountings or warped hub flange (this is the part from which the wheel studs protrude)
If the shake/wobble was originally in the rear and still occurs there, check for a warped hub flange, loose or worn wheel bearings, strut mountings, etc.
Let me know if this helps or if you need more assistance.
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Wednesday, April 7th, 2010 AT 9:57 AM