Anyone recognize this fuel sender wiring? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Wincks2 · 10-02-2011, 11:26 PM

My fuel sender has three wires. Black, yellow, and pink-white.

As none of my books show this wiring, not sure what year it is from or what they are for.

My book says my fuel sending unit should have one grounded to the frame and another going to the fuel gauge. I think those are the black and pink-white respectively. Have been unable to find any info about the yellow wire.

It has been running my 6.2 diesel. Although a prior owner had left the middle tube unconnected so when I filled it right up, fuel poured out the middle tube and down the tank's side. My book says the tube should be connected to a vapor canister to prevent fuel fumes from getting into the air. My other book calls it a fuel syphon tube.

[IMG]

[/IMG] My book says it is a fuel syphon tube. But I haven't learned what I should connect it to.
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Posted via Mobile Device

10-02-2011, 11:26 PM	#1
Wincks2 Registered User Join Date: Feb 2010 Location: Canada - Manitoba - Winnipeg Posts: 425	Anyone recognize this fuel sender wiring? My fuel sender has three wires. Black, yellow, and pink-white. As none of my books show this wiring, not sure what year it is from or what they are for. My book says my fuel sending unit should have one grounded to the frame and another going to the fuel gauge. I think those are the black and pink-white respectively. Have been unable to find any info about the yellow wire. It has been running my 6.2 diesel. Although a prior owner had left the middle tube unconnected so when I filled it right up, fuel poured out the middle tube and down the tank's side. My book says the tube should be connected to a vapor canister to prevent fuel fumes from getting into the air. My other book calls it a fuel syphon tube. [IMG][/IMG] My book says it is a fuel syphon tube. But I haven't learned what I should connect it to. Posted via Mobile Device Posted via Mobile Device __________________ Old Smokey: 85 GMC 3/4 ton long bed crew cab originally a 5.7 gas engine now with an 84 6.2 with a 92 serpentine belt system, a banks sidewinder, torque converter, and a shift kit. I bought her this way from someone handy - and now am trying to figure out how all this truck works. The Old Smokey project: http://67-72chevytrucks.com/vboard/s...d.php?t=390518 Last edited by Wincks2; 10-02-2011 at 11:46 PM.



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