Question about 2003 Ford F350 Super Duty DRW SuperCab

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Fuse 45, 10A, Ignition switch run/start feed. Is blowing intermittenly. Usually upon an engine start or shutdown. Truck will start, but not accelerate. Inst gages don't work. Wiring diagram points to instrument cluster and there is a feed from there to the Powertrain Control Module. Should I try to get the trouble code on this? Anything else I should do? How about trying a 15 A fuse?

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Sounds like you may have a bad ignition switch,is it tight i.e. key or barrell not loose or sloppy ,also you could have a wire worn thru in the steering column wire harness,what I would try is before you turn the key fully to start the engine wiggle it in all positions and see if this causes your problem, to save you fuses,I would go to the auto parts store and get a circuit breaker so you can reset it during the tests, you could try a 20 amp, but I seriously think you have other issues causing your symptoms

Posted on Sep 25, 2009

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