CUCV electrical issues - help needed

[AJMBLAZER]

So here's my thread over on Steel Soldiers to give you the full background:

http://www.steelsoldiers.com/index.php?name=PNphpBB2&file=viewtopic&t=23580

I shorted two of the terminals on the p-side firewall together accidentally and ended up burning off completely the front battery's positive terminal. One new battery and connector later I have 25v going from the rear battery through to the GP relay and then at one of the open constant 24v spots under the dash in the fuse box...but I get nothing when I try and turn the key. Nothing at all, like the truck was totally dead or the batteries weren't connected.

I'm not talking dash lights work and then everything dies when I turn the key, I mean there's nothing going on in the dash and starting system at all. Put key in, turn to on, nothing happens, turn farther to start and even more nothing happens. No lights, no clicks, no grinding, no whirring, no anything.

God damn I hate electrical ****.

 

[AJMBLAZER]

 

[73k5blazer]

Well, I'll be captain obvious, and say something else is fried.
Did you find all the fusible links and check them as mentioned in the other thread?
Perhaps some of the relays fried as well. Weird things can happen when too much current flows into places it shouldn't. But it more sounds like certain areas are just completely dead still, which really points to those stupid fusible links they bury around places on the vehicle.
Your going to have to chase it down the hard way. Follow the power, all sources, not sure which ones that would be on a CUCV, from the battery to the fuse box & make sure you have that fully powered up.

I know that's probably not much help. Sorry. Traverse City heh? I try to stay away from Micheal Moore town, but wish I was closer I'd come and help you.

 

[AJMBLAZER]

We're desperately trying to move away, trust me.

Yeah, getting the feeling I'm going to have to just start poking and proding. Problem is I'm at square one with my electrical knowledge.

 

[smalltruckbigcid]

you aren't supposed to have 25 volts on the backend of the glow plug resistor. If the red wire coming from the resistor to the glow plug relay has more than 12 volts its shot. I have a good one somewhere. The heavy red wire coming from the battery going to the main junction block, it has the blue fusible link, looks fried in the pic. that one is supposed to be 12v. It feeds the ignition and main cab power. I think thats your problem. PM coming your way

 

[AJMBLAZER]

Hrmmm...the relay is behind the shield thing on the firewall directly behind the air filter housing?

Which wire looks fried? Not seeing one in the pictures coming directly from the batteries to the junction block. Do you mean from the terminals on the passenger side over to that square/diamond shaped connector thing to the side of the gp relay?

You have a PM sir.