After two weeks of ownership, I have discovered another common problem with these vehicles if anyone is researching to buy one. A couple days after purchasing, I kept coming out to a dead battery. I had the battery and alternator checked and both were fine. I checked all switches to make sure everything was off, but the problem persisted. After doing research on parasitic battery draw, I found that on the 2003-2007 model Expeditions that they have a problem with the rear wiper. Something happens to the rear wiper to prevent it from returning to the fully parked position. It will then constantly try to park itself and this causes the battery to drain even when the vehicle is shut off. I pulled the fuse for the rear windshield wiper, and this is a good temporary fix. I also posted a negative review of the car dealer where I bought it as they told me I was on my own to fix it. After the negative review, the owner of the dealership called me and offered to fix it for free. They put a new motor and wiper on it, and that seems to have fixed the problem.
