this is on my 2004 Lincoln Navigator. My battery goes dead in 24-48 hours even fully charged on a charger for 2 hours. Rediculous. I sent it to the Ford dealership once and they said they "fixed" it. They said it was in the liftgate latch. I got a new liftgate latch. One day i went outside I heard my air suspension running while the car is off and locked. So i turned it off and still no luck. Anyone have any ideas? The thing only has like 45,000 miles...