The problem started in May 2010 when I stopped driving my car every day. I noticed if the car was not started for 3 days then the next day the battery was dead. I would jump start it and then by starting it before 3 days the car run well. Battery was changed just to make sure it was not battery ... however the problem continued. In November 2010 the alternator was changed. The problem still continued. I 2011 I noticed it was getting worse, now after 2 days the battery was going dead. My mechanic tested everything that he feel could cause the problem but still unresolved. I lived with the problem of making sure I start my car every other day and let it run in standing motion for about half an hour. My mechanic wanted me to bring back the car but it was not convenient for me to do so (medical issues amongst others). Feb 2012 I put in new battery. July 2012 battery died 2 hours after I went driving. As usual I get a jump start...the next day the battery was dead again. I got a new "Die Hard" battery a few hours after battery was dead. The car has been at my mechanic for the past week who kept testing different things and letting the car sit to see if the problem would continue... the problem persisted. My mechanic took the car to the Ford Dealership and now they are saying its the alternator. My mechanic know the problem existed before a the alternator has been replaced (2010) so he asked Ford to check the alternator again because when he tested it in his shop the alternator was not the problem.

I would greatly appreciate it if anyone who had similar problem let me know the answer. I am so frustrated with my nice car.