your not going 2 believe this 1992 ford f250 4x4 iv grown up playing in junk yards thought i new it all till now no power to the front or rear fuel tank every this is working right on the dash but cant hear eather pump pressure up checked relays well checked every thing even the safety switch on the right side passenger side it was the daRn ignition switch box on the steering column hope this will help some one DAve