Is a special tool needed to remove the coil pack from the spark plugs on the M111 engine? It looks too simple to be true-every thing is visible and easily reachable. I've replaced the plugs on a Maxima and the coil packs just pulled off the plugs. I would disconnect the battery and the coil pack connectors and remove the coil packs from the spark plug and then remove the spark plug. Tahnk you.