Hi everyone I have seen some past posts on this but thought I might throw out my scenario, I have a 97 Eddie Bauer Expedition with the 4.6, I just replaced the heater core last week ( removed the dash and all) when I put it back together the truck started fine. I let it sit a few days and went out to use it on Sunday and the battery was dead, not sure what drained it, but I put the charger on it for 20 minutes and went to start it, and it cranked over like crazy but wouldn't start. I then noticed the "theft" light blinking like crazy and it won't start. I disconnected the battery for 1/2 hour, like I seen on some posts, but that did not work. I do have a friend that has the OBD scanner from snap on, is there anything we could do to get this thing going without going to the dealer? Any help would be greatly appreciated.