What color is the wire for the fuel gauge?

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jfkelley

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I have a 76 K10 I'm doing an LS swap in it came stock from factory with dual tanks..Im going to one tank with electric fuel pump inside the 87 TBI tank on the drivers side I want to use the factory wiring so I can run the factory fuel gauge ..My question is can someone tell me what color is the wire for the stock the fuel gauge ?..I see two blue wires and and a black wire which is ground...But I have read on other forums its a pink wire I'm looking for ?..Can anyone confirm this ..I am lost when it comes to wiring...Thanks in advance
 
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75gmck25

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The wiring for a ‘76 would have the right tank as main and the left as auxiliary. It also uses a simple Pollack valve (either 3 or 6 port) for fuel, with only one power terminal to make it switch. Later trucks made the left tank the main, and used a 6 terminal fuel valve.

IIRC, the gauge sender wires on my ‘75 are tan, not pink. The main tank sender uses a tan wire and the other is tan with a white stripe.
 
bucket

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75gmck25 said:
The wiring for a ‘76 would have the right tank as main and the left as auxiliary. It also uses a simple Pollack valve (either 3 or 6 port) for fuel, with only one power terminal to make it switch. Later trucks made the left tank the main, and used a 6 terminal fuel valve.

IIRC, the gauge sender wires on my ‘75 are tan, not pink. The main tank sender uses a tan wire and the other is tan with a white stripe.
Click to expand...

Are they perhaps a faded pink that turned to a tan-ish color?
 
jfkelley

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..
 
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jfkelley

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bucket said:
Are they perhaps a faded pink that turned to a tan-ish color?
Click to expand...


I have connected my sending unit wire to both Tan with White Stripe and Tan ( Maybe Pink Faded wires ) one at a time and it goes all the way to the 3 o’clock position.. am I doing something wrong?.. The wires I have on the driver's side are the following ..Keep in mind this is going to be the tank I use and there is no gas in the tank , I can hear the fuel pump kick on when I turn ignition.

Thick Red wire that runs all the way to the back
Blue
Light Blue
Pink maybe Tan
Pink With White Stripe ( Could be faded tan)
Green

On passenger side there is one Tan wire with a white stripe leading to front of Truck ...

Am I missing something?..I checked the ground...Thaks In Advance
 
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My ‘80 with dual tanks is a pinkish/tanish wire. It’s here on the bulkhead IIRC:

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ETA: looking at my notes I may have it pinned in the wrong spot, I think it should be in the hole above that.
 
jfkelley

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If I understand this correctly I attach my Sending unit fuel gauge wire to the pinkish tan wire ?
 
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jfkelley said:
If I understand this correctly I attach my Sending unit fuel gauge wire to the pinkish tan wire ?
Click to expand...
With factory stuff it should only hook up one way... My factory sending unit wire had a kinda unique plug on the end.
 
jfkelley

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Ok I think I get it ..That wire connects to the back of the Fuel Gauge ...? Am I wrong?
 
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jfkelley said:
Ok I think I get it ..That wire connects to the back of the Fuel Gauge ...? Am I wrong?
Click to expand...
Yes, through the bulkhead & to the gauge. The rest of the dual tank wiring goes through the firewall in a different spot.
 
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where can i find a replacement sending unit wire? mine is cut and the pop on end is missing ? anyone know who carries this?
 
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Ken B said:
where can i find a replacement sending unit wire? mine is cut and the pop on end is missing ? anyone know who carries this?
Click to expand...

I'd like to know this as well. Previously, I have just scavenged and replaced the connector with an old used one.
 
PrairieDrifter

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https://www.summitracing.com/parts/aww-ca97607

Ive never pulled that connector apart, but this seems correct other than wrong application with the little pass through grommet. There's a couple other options in the related section.

I always thought mine were orange wires..
 
PrairieDrifter

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