2002 sebring 4.2L idle questions
 

I just bought this car for my daughter, it is a 2002 sebring LX 2.4L. it has a few problems I will address in seperate posts. the problem I am having is with the idle, when I test drove it, it started fine and ran ok, then when I stopped the car after driving it, it will idle rough in all in all gears. but durring driving it seems fine with no hesitation. The PO said that he and a friend changed the timing belt a year or so ago. that could be the problem I supppose. I will check to see about any possible vacuum leaks tomorrow.
looking for any ideas, and how to test them.