Wheels are out of balance
Many things can cause the steering wheel to shake when you are driving. However, the most common cause of steering wheel shaking is a bent wheel.
balance your tires
What make the steering wheel shake is the tires that need wheel balance.
Loose or worn steering parts, suspension worn, tires out of balance.
Your power steering pump and or steering box may be about to give out on you.
Check tire balance or wheel bearings in front axle
You may need a wheel alignment, or you may need bushings.
Tire out of balance, bent wheel, drive shaft bent, loose or worn steering parts.
Wheel balance may be off...
lose bolt no seriously its probly your alinement is off
Worn steering or suspension parts. This can be very dangerous, so have this repaired ASAP.