Hey guys/ladies! Of course, my husband is out of state and my car breaks down. I have a little more than basic knowledge of mechanicin'. I have a 2009 CTS AWD. 111,000 miles. Bought it used in 2011, no warranty left. Check engine light is on. Car became weak and started misfiring. I started with the most obvious (cheapest) and replace the plugs, no change. A week later, I smell plastic burning, blatant loss off power and it was obvious a cylinder was dropped. (Flashing check engine light) Limped it back home to find out coil pack #3 was melted. Got a new coil pack and installed it this morning. Car ran amazingly for about 10 minutes... Melted again. Gotta be a short, right??? Pigtail maybe? Suggestions?