Question about Ford F-250

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Ignition switch run start feed fuse 45 has been blown a couple of times when truck is put in gear i loose all guages and accelerator truck goes no where .. it just happened again only this time the fuse isnt blown and the circuit still has power . im wondering if a wire is pinched in half or a module is fried please help

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  • kenyonelectr Aug 01, 2009

    at first it only happened in lower gears 2nd and 1st now it happened in drive wires in column look good as do wires conecting to back gauge cluster .. never thought about checking near transmission good idea since the truck has a 4.5 " lift.. thank you..



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You may be right about the wire. I would recommend to check with wiring that goes to the solenoid on the transmission (I reckon this is automatic) first as this is directly related to the shifting in gear. It could be a faulty wire or a faulty solenoid. Check as well the ground wires. Other sensors that may be related to this is the velocity sensor which is found in the engine, most especially if you get the problem when after shifting you start to move. If you see other wires on the tranny, check the integrity of the wire and the connections. You may have wires that go back to the dash that you may have to look at.

Posted on Aug 01, 2009

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Personally, I'd take a close look in area where steering column rotates when shifter is moved, to see if any wires bared or damaged, if it only happens when shifter moved. Check for any wires near shifter linkages at transmission as well and try to follow wires from column to transmission where they come out of firewall area as well. Doesn't matter what gear does it?

Posted on Aug 01, 2009


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If you get nothing else from my preaching, get this:

Fuses don't blow for no reason....ESPECIALLY not a 40-amp Maxi Fuse!

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