The ignition lock on a 1981 Ford F-150 is the trigger that tells the starter motor to engage; this is the mechanism that turns over the engine. The lock is part of the ignition switch, which can wear down over time. You will not be able to start the truck if this happens, rendering the vehicle undriveable. The ignition lock and switch must be removed from the truck and replaced to fix this problem.
Tools Used: Phillips-head screwdriver, Open-end wrench set, 3/8-inch ratchet and socket set
Remove the Ignition Lock
Pop the hood on the F-150. Remove the negative battery terminal connection using an open-end wrench. Move to the driver's seat of the truck and use the Phillips-head screwdriver to remove the screws holding the steering column cover in place.
Lower the steering column using the 3/8-inch ratchet, extension and sockets. Unplug the wiring to the ignition switch by hand.
Unbolt the ignition switch from the steering column using the 3/8-inch ratchet and socket. Hold onto the switch and lift it up toward the headliner, then pull the switch away from the truck.
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