I am sure this is probably something easy to diagnose but I have a 2000 chevy cavalier that at idle just started smoking this morning, I don't have ramps to get the car up to see where the smoke was coming from. However, what I did notice was between the headers was where smoke was coming out. The smoke was white so I initially thought waterpump but the waterpump was changed 6months ago. What else could it be?

 

Losing coolant?