Question about Chevrolet 1972 Blue & White Chevy Pickup Truck Diecast Model Truck

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Need wiring schematic showing fuel tank to gauge in 1972 chev trk

I need a wiring diagram to detail where the brown wire from the gas tank sender behind the seat goes on my 1972 Chevy 4x4. I also need to know what wire feeds the gauge.

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There should be a wire that connects to the gas tank sending unit and maybe another wire connected to a spade terminal that could be screwed down to the in-tank sending unit. The brown wire from your gas tank sending unit goes to the back of the dash guage. All the gas tank sending unit does is give a "ground" signal to the dash guage. Whatever you do, do not connect the brown wire to a positive 12 volt wire as sending 12 volts through the gas tank sender will explode the gas tank! Take a look at this website and it will all clear up for you.

http://auto.howstuffworks.com/fuel-gauge1.htm

You did not say if your dash guage is wires with a plug-in or single wires connecting it. If what i've given you here is not enough to fix the whole problem then respond back with how does the wires connect to the back of the guage. Good Luck!

Posted on Jan 15, 2009

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Less common causes are a faulty fuel guage or circuit in the instrument panel.

Test the sender as it is the most likely cause and easiest to eliminate.

First inspect all connections that are readily visible to insure that they are secure & free from dirt or corrosion.

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Hope this helps. Please do rate my answer. Thanks

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You'll see the 8mm screws holding the units in place.
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Wiring Diagram:









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