Reply to "Tach and fuel guage stopped working......?"

jb1490Member

The pink wire (from fuse #12) that is the +12v for the fuel gauge is also the +12v for the temp and oil gauges. If the temp and oil gauges work, but not the fuel gauge, check the pink jumper wire that ends at the fuel gauge. If ok, then trace back to the sending unit. It could be a bad ground at the fuel tank or a bad sender.

Fuse #12 also feeds the brake lights and the turn signals.

The tach is fed from the UNFUSED side of the #12 fuse. Check the wire connection on the UNFUSED side of the fuse block at the #12 fuse. The tach feed wire will either be white or light blue.

The GEN warning light (in the speedo) is fed from the tach +12v wire. If the GEN warning light illuminates when the ignition switch is turned on (RUN position), then the tach is getting +12v, although it may not be making a good connection on the back of the tach.

John

2/17/129:50 AM

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