hi i am a new member, i want to say hi to all this is a great site. i also have a question. i just purchased a 2000 contour svt with 65,000 miles, i don't know much about the history of the car other than the carfax report that had no major issues to worry about. i drove it from florida to michigan this week and the car runs great, but when the a/c or the defroster is on it runs rough. it feels like it stall when i let of the gas. or when i am driving it will feel almost like a jerking feeling or even like it stall for a second. hard to explain. let me know if i can add any more info to help diagnose the problem. thanks