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Not sure what your problem is but, one wire comes from each tank and goes up to the dashboard switch. Blue comes up from the left tank, brown w/ white stripe comes up from the right tank. Solid brown goes to the gauge. There will also be a wire from the fuel switching valve (green). This one activates the fuel valve itself. I need to know what voltages/resistances should be at the back of the gauge ?

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13y ago
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Q: How can you get a wiring diagram for changing a fuel gauge on a 1978 Chevy Silverado with a 350 motor and duel gas tanks?
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