The switch is located on the steering column right before it exits the cab.
There is a clip that holds it on and very hard to get to unless you know what you are doing.
If the 360 is in a F100 the point gap is .021. If the 360 is in a F250 or bigger the point gap is .017.
It could be the carb needs to be rebuilt. I have a 1971 f100 myself is a 360 manual 4 speed and that fixed that problem. The accelerator pump on it wasn't working causing it to be way down on power and bog down when I was giving it the gas. If yours is an auto tranny then there could be something wrong with it like its skipping first gear or your torque converter isn't stalling when it should. Hope this helps you tjman oug
a c-6
http://www.boxwrench.net/specs/ford_351C.htm
Reach under the dash at the switch. There is a small button on the side of the switch, push it in and remove the light switch knob. The switch is fastened to the dash by the round nut with a slot on each side of it.
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To remove the ignition switch from the steering column of a 1983 Ford F100, start by disconnecting the battery to ensure safety. Then, remove the steering wheel and any components covering the ignition switch, such as the turn signal and horn assembly. Once you have access to the ignition switch, locate the mounting screws or clips that hold it in place, remove them, and carefully pull the ignition switch out of the column. Finally, disconnect the wiring harness from the switch before fully removing it.
It should about 18 gallons.
http://www.fordification.com/index.htm
It only has fuses by the light switch
It is in the headlight switch. If you take out your gauge bezel it's right there on top of switch..
It is attached to the headlight switch under the dash on the lefthand side
headlight switch has a short in it and needs replacing This is very common on older ford trucks.
Bad solenoid
It's part of the heater controls, on the right hand side
red and orange wire go closest to each other the other wire go to the farthest peg