It could be many things...
It could be warped rotors.
It could be loose tie rod ends. (If a slower, less noticeable drift)
It could be unbalanced tires on the front end.
It could be CV joint(s) ready to go out.
I can't think of anything else at the moment.
Alignment
your car is probably trashy
Tire out of balance, bent wheel, loose wheel bearing, defective tire, loose wheel lug nuts, & worn steering or suspension parts.
The steering system in a 2005 Grand Prix is comprised of many different moving parts. The steering will shimmy when any of the parts begin to wear out.
This is a self-exited vibration problem.
The shimmy sensation in a vehicles steering wheel could be from several things , but the foremost likely reason is the camber being out of adjustment, and a simple alighnment should solve the issue promptly
You can tell that the rack in opinion steering is bad when there is excessive play in the steering will. You might also feel a shimmy in the steering wheel.
Your automobile may have a tire out of balance or a worn part in the front end causing this "shimmy" effect .
Your automobile may have a tire out of balance or a worn part in the front end causing this "shimmy" effect .
The steering wheel shimmering could be warped front rotors, when slowing down. The stalling when slowing down could be a bad fuel filter.
Wheel bearings are the most common for causing a vibration.
it depends.could be a bad tire with a broken belt or maybe even a wheel bearing.if it only shimmys when braking then thats a brake rotor