[quote:74767971d1="Bruce Hunt"]Does the check engine light come on? Would you say the engine itself is running rough when cold?
You are playing russian roulet with the timing belt, but I don't suspect it is causing your problem.
You might want to check the engine motor mounts and see if one of them might have given out. Please think about the questions above and reply to them. Thanks![/quote:74767971d1]
Engine light does not come on. I do not think the engine itself is running rough; otherwise, it will not become normal after I drive a car for a while. Although the timing belt service is due, it should not contribute to the engine shaking problem. This is a comman problem for the high miles vehicle comparing with the new or low miles vehicle. The most of the high miles vehicles begin the enging shaking problem when the driver starts the car, especially in the morning and winter. I just do not know why the engine shakes when it strats after the vehicle reaches high miles, especially in the morning and cold weather. I have replaced the spark plugs. The spark plug is a little dirty with a little white particles/powder and oil. After a change of the spark plug, the engine shaking has a litle improvement. It should have other potential problems. Do you have any idea?
May 1, 2008 at 10:09 AM