Zero voltage...

[4speedfunk]

Is there a main fuse or something on the H3?

Big Red is totally dead. Key stuck. No dome light. No horn. No dash lights. No nothing. Two fully charged batteries.

 

[woodwardsh3]

May be dumb to say but are you getting a good connection on the terminal end's some of the aftermarket ends will corrode and loose contact. Check with a volt meter at the other side of the clamp where the wire go's in.

 

[SedonaBound]

0 volts measured where? Did it resuscitate after ten minutes? Might be the dreaded PassLock problem in the ignition switch.

 

[amrg]

Terminals used to do that with me! Completely dead everything, key stuck in the ignition, wiggle the battery cables, power comes on, go to switch on the truck, dead everything again!
Even with aftermarket terminals, I get this issue when they corrode again!

 

[Hunner]

That's one of the great advantage to AGM batteries, no acid corrosion.

I think maybe in 4speeds case it could be sunspots or a near by meteor.

The sun is about to flip its magnetic field, at the peak of its 11-year solar cycle or at the half-way point of what scientists call a solar maximum – when the star is at its most violent in terms of solar flares and the Earth is most vulnerable to an electromagnetic pulse.
Read more at http://www.wnd.com/2013/08/suns-magnetic-field-flip-raises-emp-threat/#zRmZsrmtwgVSqfBe.99

lol

 

[4speedfunk]

Re-seated the main connectors under the fuse box...fixed.

BTW...another ridiculous design on those connectors. Thanks GM.

 

[CaseyS]

Under the fuse box? Do you mean the main terminals on the distribution box at the rear of the fuses. Just making sure I understand it right.

 

[4speedfunk]

Yeah...two snake heads. One white & one gray. Both with pointless, overly-complex latching mechanisms. Probably 40 terminals in each.

You must pull the heads up out of the base and get them fully seated to the back of the fuse Block...and then push the whole thing down into the base (which has equally complex latches).

 

[woodwardsh3]

Glad you found the trouble.

 

[Renagade132]

I agree, glad you figured it out without it costing you anything!

 

[4speedfunk]

Didn't cost me any money...but it did cost me a couple hours of head-scratching, a few thrown wrenches, and some pretty sweet profanities!