No diagram but I can give you the layman's version. Fuel gauge issues are either A bad gauge A bad sending unit A broken wire/ground or failing circuit board Attached to the back of the fuel gauge are three male terminals. 3, 6 and 9 o'clock. The 6 o'clock is the ground. The 3 o'clock is the "key on" ignition 9 o'clock is to the sending unit.. This page contains all the electrical diagrams for the component. fuel gauge, in which he is found in the car Chevrolet Pickup C2500 (1988-2000). You can view various wiring diagrams where this component is used, as well as go to more detailed diagrams to see the complete connection and interaction in the system. All diagrams have links to quickly jump to the corresponding section with the.
Find the Complete Chevrolet Silverado (2019-2026) Service Repair Wiring Manuals Browse our collection of 17 free PDF manuals for Chevrolet Silverado (2019-2026) vehicles. Manuals include step-by-step repair instructions, wiring diagrams, and factory specifications.. Thats normal. The pic below is out of the wiring diagram for 1980, but the gauge cluster wiring didn't change much '76 - '86. Circuit 30 Pink is for the fuel gauge. As you already mentioned, the fuel gauge circuit has two pins on the cluster pigtail, 7 and 18. The pin at slot 18 (bottom left in the wiring diagram) has two wires coming out of it.