Well my wife's car has develop this shddering when the engine is first place on gear. The problem dissapers after the engine is warm. I know, I could just let the car idle for 3 minutes but it seems a waste of gas. What can the cause be? The car only has 74K on, and I just replace the radiator last week after the trans. cooler fail. I really hope its not trans. related because I am ready to set the car on fire. Too many nugging problems worst than having two wifes at the same time. Any ideas are welcome and keep up the good work!