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Hey fellas. 94 7.3 turbo. All the other gauges work. The volt gauge doesn’t move. Previous owner rewired the glow plugs to a push button (I’d like to change that back too but some other time) otherwise everything is stock.(that I can tell). No blown fuses. Just looking for a place to start. What color wire connects to the gauge from where, where to check continuity, etc. My first diesel, thanks.
