The condition that my car is experiencing is a know problem with the 4 cyl engine. It is a harmonic vibration. Ford has a remedy for it that requires I replace the steering mass damper, aV module and radiator.
If I manually hold the idle speed at 750 rpm while the car is in gear instead of it idling at 550 rpm the vibration completely goes away. I am looking for an inexpensive way to remedy the vibration.
The idle is otherwise smooth.