Help! Since November 2009, I've been experiencing a vibrating/ rattleing problem when my car is idleing. The RPMs drop when I come to a stop at a signal, or stop sign. It also happens sometimes when I am turning a corner, or when I'm in "park". It happens more when my air conditioning is on, and when my headlights are on. It's scary because it feels like the car is going to stall out. This doesn't happen all the time, but it happens regularly on an intermediate basis. I've also had problems where my windows get stuck and the repair facility has to "reset" the computer about once every couple of months. I've taken the car in 6 times, to 3 different Ford repair establishments to have the rattleing/vibrating problem identified and solved, but it seems like I'm getting a run-a-round. On 2 occasions 2 seperate techs from 2 different repair facilities experienced and acknowledged the problem in test drives, but later when they can't (or won't) fix the problem, they don't want to admit they originally experienced the problem first hand during the test drive. In one case, the repair place denied the tech ever acknowledged the problem. (I was in the car with him when it happened and he talked about it to the service adviser while I was present). I bought my car new and still have about 800 miles of the original bumper to bumper warranty left, and I'm feeling like they're trying to wear me down until the warranty is used up. From what I can find, it seems there has been similar problems with other cars on this site. If anyone out there can help, I'd really appreciate it. I don't know anything mechanical about cars.