RE: Why does my car tremble?
have them checked. it shakes at ony a certain rpm because of the frequencyof the vibration and when you put it into neutral the rpms slightly raise so the frequency of the shaking changes and it smoothes out. check them by a visual check to see if the rubber is ripped or deteriorated and then have the hood open, and have someone look at the engine (do not stand in front of the car) as you put it into drive and hold the brake firmly and apply some gas. it the engine moves a lot in the engine bay, you need new mounts. th the same in reverse just to make sure. but make sure rpms go down before releasing the brakes again