Lost power to fuse panel!

[Rockybar]

I lost power to 3 post of my fuse panel.

The instrument lights, and the two plugs on the left.

The wiring in the truck has been a bit bastardized, but its kinda hard to not find that in 40yr old rigs.

All other fuses have power. All fuses are good

I recently moved the dome lights and volt meter to the top left post, and radio/turn signals to bottom left.


Any ideas would be great.

[tbone6]

The common element here is the headlight switch. I would start there.
What year/model is your truck?

[Rockybar]

sorry,

67 F100

I was running it last night when I had problems, so you may be on to something there.

I removed the fuse box, and check power behind on it on the incoming wire, no power there, so what ever feeds it took a dump

[tbone6]

The feed comes from the headlight switch (see attached drawings). I have highlighted the wires (red) in question. You might try turning the knob full throw several times, sometimes they just get crud on the wiper/coil. Otherwise, time for a new switch...

Drawing1.jpg

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[Rockybar]

TBone6, thanks for your help and awesome diagrams.

Tried what you said but no luck. Looks like a new switch is required.

Thanks again

[tbone6]

No problem. Let us know when you get it fixed, please.

[Rockybar]

I got it temp fixed for now.

I put the signals and volt meter on the big post off the back of the ignition switch

[tbone6]

Sounds good. That big post is power straight from the battery, no problem using it as long as you don't leave a blinker on overnight by accident. The voltmeter will pull a little current just sitting there, so don't let it sit too long without recharging the battery. Or you could just leave your voltmeter unhooked for now...

*edit for spelling

[Rockybar]

it was a switch 12v post.

[Rockybar]

tbone, how do you remove the switch? Picking one up today

[tbone6]

Here ya go...
The release button

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Instructions (click to enlarge the picture)

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[sargentrs]

Be gentle with removing that harness plug. Mine was brittle as"all get out".

[Rockybar]

Replaced the switch, still don't have any power to that fuse panel as mentioned above.

[tbone6]

I recently moved the dome lights and volt meter to the top left post, and radio/turn signals to bottom left..

Were these lights working before you moved them?

[Rockybar]

Sure was, yeah I moved them to get them working after I lost the power on the fuse panel