Hi, I'm new here and looking for some help. I had a dead battery in my 99 f250 deisel p/u this morning. My interior light was on and even with my ignition off my heater fan was on. Man I sure hope there is someone here that can help me out, it's my only vehicle and I'm stuck untill thursday before I can get an appointment at a shop. thx

 

disconnect battery cables when u park and use it that way till u can check it out