One of the most common and most bothersome vehicle problems is vibration. What’s more, it often creeps up on you gradually and subtly — until one day you find yourself wondering how you ever put up with such an annoyance.
What does it mean to have a vibrating car?
Vibration simply means to move back and forth or from side to side with very short, quick movements, in the case of your vibrating car it means the unusual short and very quick back and forth or from side to side movement. If this occur don’t take it gently because the fix could be something relatively cheap and simple, like a tire rotation or balance. Or it could be a more serious auto problems — something more costly, like steering or suspension issues.
The following will explain the common causes of a vibrating car:
Engine Problems
Sometimes a shake or shiver will emanate from the engine compartment, because the engine isn’t getting enough air, fuel or spark that it needs to run smoothly.
Symptoms that might indicate such an engine-related case of the shakes include the following:
Shiver or jerking occurs during acceleration
Staccato shaking, as if over a highway “rumble strip,” within a specific speed range
Car starts and drives fine for a while, but later begins to shake
These symptoms could be signaling that it’s time for a new set of spark plugs. If the plugs are fine, it could be that the spark plug wires need to be checked (are they connected in the proper order?) or replacing.

Lastly, a dirty air filter or clogged fuel filter can starve the engine of needed oxygen or fuel, respectively. So be sure to replace them at the manufacturer’s recommended intervals.

Axle Problems
Our vehicles are full of reciprocating, rotating parts that have to fall within certain measurements, or tolerances, in order to perform properly.
If an axle gets bent — which is actually quite easy to do in a collision or other mishap — it will create a jostle of a ride afterward. With this problem, the vibrating often picks up in intensity the faster you drive.
A related problem would be that the drive shaft also needs inspection. This rapidly spinning part transfers engine power to the rear axles and wheels in rear-wheel drive vehicles. If it’s bent, shaking may result...http://automedicsafrica.com/5-top-causes-vibrating-car/