Re: Big problem, no clue...
First, welcome to the Nation.
Second, you posted this in the wrong forum. Not that big of a deal. A post in this forum means you are broke down on the road and need some fast help to get you home. Like I said, not that big of a deal, mostly for future referance.
OK, for your issue.
How fast does it drain the batts. Have you had your batteries load tested. Will your truck start with jumper cables.
Something you might try, might not work. On your glow plug relay, disconnect the big lead coming from the battery, recharge again, see if that helps your problem.
Early '99 F350 DRW, Excab, LB. Auto. 2WD, 2010 bed, 2005 headlights, 298K, on my way to 1000K.
H2E, 238 Hybrids, Adrenaline oil, Tuned by Tony. DIY Regulated Return.