What is this wire?

[hypercycle]

What does this wire go to and where does that bracket on the wire bolt to on my '79 K20
Thank you !

 

[Goldie Driver]

I looked on my 80 - took some pics but still can't answer.

Hopefully someone will chime in.

 

[Goldie Driver]

Does your fuel gauge work ? IIRC the tannish wire running down behind the EFE is for the fuel tank sender. The wire on yours almost looks like it goes to the body and is grounded, though, which would not be it.
Hard to tell from the pic.

 

[PrairieDrifter]

That looks like previous owner ran an electric choke wire.

 

[hoagster]

That's my take it's an add on!

ST_352_79_1979_Chevrolet_Light_Truck_Wiring_CK_10_30_Only

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[hypercycle]

No gas gauge did stop working at some point. We are original owners and although carb has been replaced, dont think it ever had an electric choke on the quadrajet. The wire, in person looks orange, not tan. The holder bracket has been unbolted from somewhere: I dont think it is a ground however. In another thread, it was stated that an orange wire in this approximate location was for a tranny kickdown solenoid? I get no voltage with the key on or when i depress the gas pedal(engine not running) to make me think it is for kickdown, but that may not rule it out from being for kickdown, but it does probably show its not for an electric choke. The wire looks factory. I will keep looking, take some more photos and post. It would be wonderful if it had something to do with gas gauge. The truck has been stolen twice and recovered; steering column had to be swapped out. Not sure when fuel gauge stopped working. Some exhaust work was done at the manifold(exhaust gaskets replaced). Truck sat for a few years until I took over from my dad a couple of years back. Im slowly getting it back in shape. Learning as I go. Thank you for your input.

 

[Goldie Driver]

No gas gauge did stop working at some point. We are original owners and although carb has been replaced, dont think it ever had an electric choke on the quadrajet. The wire, in person looks orange, not tan. The holder bracket has been unbolted from somewhere: I dont think it is a ground however. In another thread, it was stated that an orange wire in this approximate location was for a tranny kickdown solenoid? I get no voltage with the key on or when i depress the gas pedal(engine not running) to make me think it is for kickdown, but that may not rule it out from being for kickdown, but it does probably show its not for an electric choke. The wire looks factory. I will keep looking, take some more photos and post. It would be wonderful if it had something to do with gas gauge. The truck has been stolen twice and recovered; steering column had to be swapped out. Not sure when fuel guage stopped working. Some exhaust work was done at the manifold(exhaust gaskets replaced). Truck sat for a few years until I took over from my dad a couple of years back. Im slowly getting it back in shape. Learning as I go. Thank you for your input.

Chase the wire from the tank up the passenger side of the frame. IIRC the tank wire was supposed to be pink ... Given time & fade, I can see it ( color fade ) as mine is kind of like that.

I can't imagine why it would have a spade connector, but who knows.

At any rate, that fuel sender wire is the one that runs up from the passenger side of the frame and goes by my EFE valve in that pic.

Good luck !

Britt

 

[hypercycle]

Oh wow goldie driver: you still have cruise controls in place! My truck came with cruise but when a long block was installed at the dealer way back when, it wasnt working and throttle cabling was subsequently removed(according to dad who never cared for cruise anyway). However i dont see any orange wire in you photos. The connectors along the wire seem factory except the end which is clearly crimped on.

 

[Goldie Driver]

Oh wow goldie driver: you still have cruise controls in place! My truck came with cruise but when a long block was installed at the dealer way back when, it wasnt working and throttle cabling was subsequently removed(according to dad who never cared for cruise anyway). However i dont see any orange wire in you photos. The connectors along the wire seem factory except the end which is clearly crimped on.

Cruise still works, too - when the handle will cooperate.

Look at this pic - this is the pink or orange or tangerine or whatever wire I was referring to. I am almost positive it is the gas gauge wire but that is from fuzzy memory. The wire is on the left side of the pic behind the blower resistor connector.

 

[hypercycle]

This one correct? Wow that would be so great if i could have a working gas gauge again, its been on the long 'to do' list for awhile now. My dad just told me the gas gauge had been "repaired" at some point so maybe that explains the crimp connector. I'll try and chase this down further this weekend, we've got some decent weather for it coming up.

 

[hypercycle]

If it is gas gauge wire, shouldnt i get voltage on my multimeter when run to ground?

 

[hypercycle]

Question: if this is in fact the wire for the gas tank sending unit, should it not show 12v on my multimeter with the key on to ground?
My gas gauge is pegged at full with key on and drops to below 1/2 when off but not E.

Thanks for helping me get this sorted !

 

[Goldie Driver]

This one correct? Wow that would be so great if i could have a working gas gauge again, its been on the long 'to do' list for awhile now. My dad just told me the gas gauge had been "repaired" at some point so maybe that explains the crimp connector. I'll try and chase this down further this weekend, we've got some decent weather for it coming up.

Yeah - that is the one I am referring to.

 

[Ricko1966]

If it is gas gauge wire, shouldnt i get voltage on my multimeter when run to ground?

If it is the gas gauge,when you ground it the gauge should read empty,disconnected the gauge should read full

 

[Goldie Driver]

Some additional pictures of the wire along the passenger side of the frame. @Ricko1966 is going to be the expert on the electrical side.

1st pic is about midships and the other is looking over the front axle at the starter. The 3rd is same area but a different , direct on, angle.