I had let my 01 F150 sit for at least 8 months since we weren't using it. I went to try and start it up last month, refused to start. Checked the battery with our battery charger, it would not charge fully, ended up saying it was a bad battery. SOOO, I replaced it, thinking my truck would start. NOT. It turns over, have lights etc., but it will not start at all. Tried jumping it with our 2012 F250 Super Duty, nada. I am stumped as to what is wrong. I only have one key/remote for my truck. HELP!