If you mean while moving but not from the motor, it can out of balance tires - where excess rubber extorts the tire to egg shape. The lobeside shakes the car as it strikes the road and raise the car each rotation. The are needing a re-balance with weighs attaches to counter balance and end the vibration effect for a smoother ride.
If its an engine problem and is internal a product like the Mega Power Engine Treatment - found on line, will remove those carbon, friction caused engine roughness. auto-tune-up-and-repair-options dot com.
Check your motor mounts.
If your car shakes while underway, your tires have worn incorrectly from misalignment. If it shakes while in park or not moving, your engine is misfiring.
If it only shakes while moving, have your wheel bearings checked. SOON!
went i slow down and i come to a stop the car start shake and went put it in neutral it ok went iput it back to drive it ok with out moving
cause they do
Bad tires and bad alignment can cause the car to shake at certain speeds.
you shake to the left and shake to the write u you keep on moving un til u get to the top... just kidding keep moving your joystick left and right
The best that can be said is that you are moving relative to the Earth's surface.
it depends. if the car isn't moving, but the engine is still on, then yes the pistons are moving. if the engine is off, and the car isn't moving, then the pistons are still.
Shake the vechicle
yes
Filling your fuel tank will not make your car shake, unless you got some bad fuel that was contaminated with moisture.