If it does it standing still, that eliminates anything in the steering and suspension system and the brakes. All that leaves is the engine.
First, check for a misfire condition. Watch the engine while it's idling. If you can see it shaking, start with a tune-up or professional diagnosis. If it seems to be running smoothly, but you feel the shaking inside the car, suspect a mispositioned engine mount rubbing metal on metal. The engine moves and rocks when shifting between reverse, drive, and neutral. You might not feel the shaking in drive because the engine rocks and the engine mount's two metal brackets don't rub against each other.
Also check exhaust system components that are rubbing or making contact with the body. The whole system is mounted with rubber isolators to prevent vibrations. If the rubber part is replaced with metal wire, or if the two parts of the hanger are touching, you'll feel it inside the car.
Monday, April 6th, 2009 AT 4:49 AM