How many ground connections does this dual tank wiring diagram show?

Two — each tank sender box (left and right) has its own separate wire labeled "Ground".

What wire colors are used in this dual tank diagram?

Red for the 12 Volt feed, blue for the gauge wire, brown for the Left Tank and Right Tank sender wires, green for the wire to the Tank Selector, and black for the grounds.

What connects to the central component in the diagram?

A 12 Volt feed (red), a gauge wire (blue), the Left Tank wire (brown), the Right Tank wire (brown), and a green wire going to the Tank Selector.

Does the diagram specify fuse ratings or wire gauges?

No. It only shows wire routing and colors with labels; no fuse ratings, wire gauges, or part numbers are given.

Home/ Registry/ Chevrolet/ C/K Pickup/ 1973-1987/ “RootBreaker”/ Photo supermotors.net/registry/media/792651

Dual Fuel Tank Selector Switch Wiring Diagram - 1978 Chevy C/K Pickup

Hand-drawn fuel tank selector and gauge wiring diagram

‹ ›

Hand-drawn wiring diagram for a dual fuel tank selector showing 12-volt, gauge, tank sender and ground wires.

AI caption April 2010 · Photo 429 of 515

This document is a simple hand-drawn (computer-sketched) wiring diagram illustrating how to wire a dual fuel tank setup with a tank selector switch, uploaded to a 1978 Chevrolet C/K Pickup gallery. A central component (implied to be a switch or relay/selector valve module) receives a red 12 Volt feed and outputs a blue "Gauge wire" to the fuel gauge. Two brown wires run from the central component to the left tank sending unit (lower-left box) and the right tank sending unit (lower-right box), labeled "Left Tank" and "Right Tank" respectively. A green wire connects the central component to a box labeled "Tank Selector" (the dash-mounted selector switch). Each tank sender box has its own black ground lead labeled "Ground". The diagram conveys the basic wiring concept: power in, gauge signal out, separate sender wires to each tank, a selector control wire, and independent grounds at each tank. No part numbers, fuse ratings, connector pinouts, year/model applicability, or wire gauge specifications are given; wire colors shown are red (12V), blue (gauge), brown (tank senders), green (selector), and black (grounds).

Is this accurate? Sign in to help verify it.

Frequently asked questions

How many ground connections does this dual tank wiring diagram show?: Two — each tank sender box (left and right) has its own separate wire labeled "Ground".
What wire colors are used in this dual tank diagram?: Red for the 12 Volt feed, blue for the gauge wire, brown for the Left Tank and Right Tank sender wires, green for the wire to the Tank Selector, and black for the grounds.
What connects to the central component in the diagram?: A 12 Volt feed (red), a gauge wire (blue), the Left Tank wire (brown), the Right Tank wire (brown), and a green wire going to the Tank Selector.
Does the diagram specify fuse ratings or wire gauges?: No. It only shows wire routing and colors with labels; no fuse ratings, wire gauges, or part numbers are given.