Your steering wheel will vibrate at higher speeds due to either wear in your front tires or improper balance of tire pressure. IF these are not the promblem look to see if there is damanage to the shaft under the vehicle between the tires. Look at it or get it looked at before it gets worse, believe me I know how expensive it can be later!
A car's steering wheel will vibrate when driving if the car's alignment needs to be adjusted.
Maybe there is something wrong with your car, you should get it checked out.
Your rotiors or drums are out of round and need to be turned or replaced.
Vibration of the tire is caused by a uniformity parameter called "variation of radial force". Usually a vehicle's steering wheel will vibrate (called torsional nimble) at a certain speed. This vibration is caused by the harmonics of this radial force. Picture the side view of a tire with different size springs within it. The force of these springs cause a distortion of this force and you feel this distortion in the steering wheel.
get a wheel alignment
It is the engine that is vibrating and it is just being felt in the steering wheel. Can be a vacuum leak, or miss in the engine.
Normally it is a tire out of balance. Can also be a bent wheel.
the motor mount is bad
You possibly have warped brake rotors on the front. Or Bad Wheel Bearings.
could be a blockage in your fuel lines.
Normally this is caused by a tire out of balance or a bent wheel.
Your tires need to be "high speed" balanced.
well... there are many different causes for vibrations. The most common cause for steering wheel vibration at high speed is poor wheel alignment.
Because the front rotors are warped. You might want to replace the rotors or resurface it.
High speed vibration is often an indication of a wheel that is out of balance or a bent rim. It can also be a bent driveshaft or bad U-joint. Vibration when you brake at high speed is almost always a warped rotor on the disk brakes.
If other things vibrate as well as the steering wheel you might have a damaged motor/transmission mount.
Tire out of balance or bent wheel.
Have the wheels balanced. Get a 'front end alignment' done on your vehicle.
may be due to out of balanced wheels, simply you do wheel balancing. Or otherwise worn out tyre
The power steering system works on high pressure and at idle the pump does not turn fast enough to provide full assist. It requires a higher engine rpm.
your rotors on the front are warped. they need to be turned or replaced.
Check your power steering fliud, if it is low this could cause the vibration you are feeling.
This is probably due to worn brake rotors on the brakes, if there is no vibration when driving then this will be the cause.
When the car is driven at low speed, the power steering gives full assist so the driver can turn the steering wheel easily. Parking or turning tight corners can be done with little effort. As vehicle speed increases, the mount of power steering assist is reduced and the steering wheel becomes harder to turn. This gives the driver more feedback about road conditions through the steering wheel and better vehicle control. If an emergency arises and the driver needs to turn the steering wheel quickly, the full power assist is provided almost immediately after the wheel is turned only a few degrees.