Battery Drain

[Justaguy]

I'm looking for ideas here. I have a battery draw that I cannot find in my '00 F250 7.3. I have disconnected the batteries and pulled each fuse one at a time and nothing there is creating the draw. I replaced the glow plug relay because it was giving me fits uppon starting. However I did disconnect the power wire and check for a power drain there, as well as the air intake preheater. Nodifference. I am at my wits end trying to find this issue. I anyone has an idea, please help. thanks guys

oh its a heavy draw, it will kill both 850 cca batteries in about 2 hours

[The_Ronster]

Kelly is your man when it comes to things like this, I am sure he will chime in when he gets time to get on here.

[AKMark]

Call me,

978-9011, I know exactly how to troubleshoot this, I used to work at Seekins.

[The Bronze]

If mark doesn't square you away let me know. A drain repair is a couple of test light (for those without an amp clamp) tests away. A large draw is even faster.

[sevenslats]

You can search on here for my drain thread. It may give you some ideas, although mine is still not fixed.

[Justaguy]

Found the manifold intake air heater relay sticking. Replaced with a new relay. So far, good to go. Thanks for the help.