Hello anybody who can help. My 2007 mustang v6 base model recently had a problem with the Crankshaft Position Sensor and was fixed. All seemed to be fine until the next time I drove it when I noticed that the engine would stumble at idle when the cooling fans would kick on. It is a short stumble and recovers right away but is very noticeable. The RPM's seem to drop just enough to move the needle but then returns to normal. The other day, I also noticed that when the automatic electric windows come to a full-up position, it causes the same motor stumble. First thought is a large load on the electrical system, but the battery and alternator were replaced less than two months ago. Any suggestions would be great!!!!