dash wiring

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Nov 9, 2003 | 09:39 AM

Lobuck76

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From: Oklahoma

dash wiring

Let' see if I can explain this without confusing myself.

PO has done some creative wiring under the dash.
Panel lamps do not dim with r-stat.on head light switch. but get
bright/dim with dimmer stitch.cool huh?
Also. the headlights blink on and off.
have replaced dimmer switch. have new headlight switch on order
I believe i'm going to need a dash wiring diagram.color codes.
If someone has a way to post one for 67 f100 w/ factory guages
Much thanks. Ron

Nov 9, 2003 | 04:07 PM

gtex

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From: Texas

I'm not sure what you're saying.

What's the difference between; r-stat.on head light switch and
dimmer stitch

Are you saying the panel lights dim when you hit the high beam switch?

Nov 9, 2003 | 07:10 PM

Lobuck76

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From: Oklahoma

I was afraid the post would be confusing. but yes. the dash lights go dim/bright when you hit the dimmer switch (on the floor)

Nov 9, 2003 | 07:35 PM

Lobuck76

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From: Oklahoma

Oh yea. sorry about the typo(dimmer stitch?)
One should always preview ones posts

Nov 9, 2003 | 08:14 PM

gtex

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From: Texas

You're right. Sounds like the PO did some creative wiring. You'll just have to follow some wires until you spot the atypical tap in or wad of electrical tape. If he was a full blown hillbilly engineer, you may even see duct tape and bailing wire:-)

Nov 10, 2003 | 08:27 AM

rrawlins

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From: Bearspaw (near Calgary)

Also look for bad grounds. A bad ground could cause the symptoms you're describing. Make sure that you have good ground straps from the engine to body and body to frame. My truck even has a factory grounding strap from the grille assembly to the frame. Then make sure the individual circuits are all grounded properly. A bad ground can cause a lot of weirdness in a circuit.

Last edited by rrawlins; Nov 10, 2003 at 08:37 AM.

Nov 10, 2003 | 06:17 PM

Lobuck76

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From: Oklahoma

Thanks for the replies. I hadn't thought of the ground straps.
from what I can tell there are alot of splices under the dash,
it's a little scary lookin under there.
I guess it's like they say in the oilfield,
If it was easy , old ladies would be doing it.