Sounds to me like you got a little impatient. It takes time to find electrical problems. If they had it, and Ford rep wanted them to try new GEM, why didn't you let them do it?? You can purchase a GEM module yourself and install it. If it is under any kind of warranty, then Ford would have fixed it for free. If it was close on mileage or just slightly over, the dealer might have did a good faith warranty for you. Now, i say you are gouing to have to pay a lot more to fix.