why is car shaking
If your car is shaking it could be poor suspension alignment can cause a car to shake and vibrate, and other possible causes are bent or worn suspension parts, old tires, bentâ¦ wheels and bad brakes. If your car sounds especially rough at speed, the problem could lie with the car's spark plugs and wires.
Sometimes a shake or shudder 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: 1  Shudder or jerking occurs during acceleration. 2  Staccato shaking, as if over a highway rumble strip, within a specific speed range. 3  Car starts and drives fine for a while, but later begins to shake.