Fuel Gauge Wiring
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Tuned
Joined: Mar 2009
Posts: 343
Likes: 0
From: Kalispell, MT
Fuel Gauge Wiring
Does anyone have a visual aid for the wiring of the fuel gauge? I found some stray wires last night, and don't know where they go. Preferably with wire colors, and where they connect in the harness. This is for a 76 F-150 with a single tank.
Thanks.
Thanks.
Senior User
Joined: Dec 2007
Posts: 142
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Sounds bout right to me. Been a while since I was messing around with mine, but that sounds familiar.
MSEE
Joined: Apr 2004
Posts: 10,386
Likes: 35
From: Austin, TX
You all's thinking is correct. The sending unit grounds to a frame crossmember with a short length of black wire, terminated by a ring terminal. No clue on the sending unit wire color. Mine looks yellowish, but it's hard to tell if it started out as white or yellow.
More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Need,
__more info.
Where_(location of wires/fuel tank)
What_(colors of wire U'r looking at) best guess.
Why_(what is the prob?) what caused you to find the loose wires?
__more info.
Where_(location of wires/fuel tank)
What_(colors of wire U'r looking at) best guess.
Why_(what is the prob?) what caused you to find the loose wires?
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Moderator & parts slinger
Joined: Feb 2007
Posts: 50,199
Likes: 5,796
From: S/W Missouri, Polk county
Fuel tank sending wires should be ran down the dvrs side frame rail, on the inside. Yes on the black wire that it frame grounded right back by the tank.
And you should have a black plastic QD (quick disconnect) right back there by the forward tank cross member, once again on the inside L/H frame area.
Maybe green?? I am looking at a pic that I can't attach in more than one thread, for some reason? Would go out to truck and double ck but I am in Afghanistan as I type this.
Hope this helps, if not I am sure you will get more advise, shortly.
And you should have a black plastic QD (quick disconnect) right back there by the forward tank cross member, once again on the inside L/H frame area.
Maybe green?? I am looking at a pic that I can't attach in more than one thread, for some reason? Would go out to truck and double ck but I am in Afghanistan as I type this.
Hope this helps, if not I am sure you will get more advise, shortly.
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Thread Starter
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Tuned
Joined: Mar 2009
Posts: 343
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From: Kalispell, MT
Thanks for the information. I found the ground, and the sending unit wire. It seems that the PO has replaced it with a blue wire, that is hanging free near the front cab mount.
So my next question is...
What wire does this need to connect to on the wiring harness what comes out of the front of the cab to make my gauge work?
In case it matters, the wiring harness is from a 76 F-150 2wd 390 with the Alt and Oil light instead of the gauges.
So my next question is...
What wire does this need to connect to on the wiring harness what comes out of the front of the cab to make my gauge work?
In case it matters, the wiring harness is from a 76 F-150 2wd 390 with the Alt and Oil light instead of the gauges.
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,199
Likes: 5,796
From: S/W Missouri, Polk county
I had duel tanks, so my wire went to the dash duel tank switch? I removed the side saddle tank, bad rusted out hanger anyway.
And plugged in the side tank connector to the rear one, now gauge works as long as switch is in right position.
Didn't track it down that far, once I got gauge to work with aft tank, I quit chasing it.
And plugged in the side tank connector to the rear one, now gauge works as long as switch is in right position.
Didn't track it down that far, once I got gauge to work with aft tank, I quit chasing it.
More Turbo
Joined: Aug 2008
Posts: 531
Likes: 4
From: LaGrange
Ok,
__Recoil.
The cab-lead-wire is Orange. (the wire coming from the cab.)
I belive it goes into a Green terminal body.
The stock wire coming from the fuel tank was a Green -or- Green w/Red stripe.
Hope this helps.
__Recoil.
The cab-lead-wire is Orange. (the wire coming from the cab.)
I belive it goes into a Green terminal body.
The stock wire coming from the fuel tank was a Green -or- Green w/Red stripe.
Hope this helps.