dash/taillight fuse keeps blowing, please help !!

[mtnmankev]

84 K10.
The fuse for dash lights, courtesy interior lights, (no dome lamp) and taillights keeps blowing, and it's a strong arc when a new fuse is installed.
I have the harness to the rear lights disconnected, the headlight switch disconnected, the dash & gauges are out and disconnected, ignition switch disconnected.
But it still blows the fuse as soon as I try to install a new one.
I'm having a hard time tracking down this gremlin.
Can anybody help me with some advice where to look next?
Everything else on the truck works fine and fuses are good for all the other circuits.

 

[mtnmankev]

Problem solved.
Feel free to scratch your heads figuring this one out.
WEIRD as it may be, but then again, weird unexplainable things happen here all the time.
The stories I could tell would send shivers down your spine.
My helper started looking at all the orange wires, fixtures of underdash lights, connectors, etc.
Keep in mind the underdash courtesy lights have been working perfectly for years, zero issues.
When he removed a bulb, we found the short circuit, there is a strand of wire from the center connector to the shell.
I installed a new fuse in the fuseblock, and it didn't blow.
Question is, HOW the heck did it get there suddenly and out of the clear blue sky ??

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[chengny]

Problem solved.
Feel free to scratch your heads figuring this one out.
WEIRD as it may be, but then again, weird unexplainable things happen here all the time.
The stories I could tell would send shivers down your spine.
My helper started looking at all the orange wires, fixtures of underdash lights, connectors, etc.
Keep in mind the underdash courtesy lights have been working perfectly for years, zero issues.
When he removed a bulb, we found the short circuit, there is a strand of wire from the center connector to the shell.
I installed a new fuse in the fuseblock, and it didn't blow.
Question is, HOW the heck did it get there suddenly and out of the clear blue sky ??

Hmm, you might want to ask your "helper" friend that very question. Is he possibly looking for a deal on a good truck?