[Blacdout96]

If it's during neutral as well, then that deals with your rotating assembly from the tip of your crank, to the output shaft of your transmission. They may all be related wit the clutch/flyweel, bad motor mounts, trans mounts. You also may need a tune up if it didnt have one and is misfiring, or maybe a spark plug wire is crossed with another one. If you're unfamiliar with any of this, m ight want to take it to a shop and have them look over it,and let you know what it may be, and then replace it yourself.