what does it entail to replace the switch.
Jan 7, 2006 at 10:54 AM
1993 Ford F150 Ignition Switch Replacement
1993 ALL OTHER MAKES
GHOFF
- MEMBER
- 1 POST
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Disconnect the battery ground cable.
Remove the steering column shroud and lower the steering column.
Disconnect the switch wiring at the multiple plug.
Remove the two nuts that retain the switch to the steering column.
Lift the switch vertically upward to disengage the actuator rod from the switch and remove the switch.
When installing the ignition switch, both the locking mechanism at the top of the column and the switch itself must be in the LOCK position for correct adjustment. To hold the mechanical parts of the column in the LOCK position, move the shift lever into PARK (with automatic transmissions) or REVERSE (with manual transmissions), turn the key to the LOCK position, and remove the key. New replacement switches, when received, are already pinned in the LOCK position by a metal shipping pin inserted in a locking hole on the side of the switch.
Engage the actuator rod in the switch.
Position the switch on the column and install the retaining nuts, but do not tighten them.
Move the switch up and down along the column to locate the mid-position of rod lash, and then tighten the retaining nuts.
Remove the locking pin, connect the battery cable, and check for proper start in PARK or NEUTRAL.-Also check to make certain that the start circuit cannot be actuated in the DRIVE and REVERSE position.
Raise the steering column into position at instrument panel. Install steering column shroud.
Remove the steering column shroud and lower the steering column.
Disconnect the switch wiring at the multiple plug.
Remove the two nuts that retain the switch to the steering column.
Lift the switch vertically upward to disengage the actuator rod from the switch and remove the switch.
When installing the ignition switch, both the locking mechanism at the top of the column and the switch itself must be in the LOCK position for correct adjustment. To hold the mechanical parts of the column in the LOCK position, move the shift lever into PARK (with automatic transmissions) or REVERSE (with manual transmissions), turn the key to the LOCK position, and remove the key. New replacement switches, when received, are already pinned in the LOCK position by a metal shipping pin inserted in a locking hole on the side of the switch.
Engage the actuator rod in the switch.
Position the switch on the column and install the retaining nuts, but do not tighten them.
Move the switch up and down along the column to locate the mid-position of rod lash, and then tighten the retaining nuts.
Remove the locking pin, connect the battery cable, and check for proper start in PARK or NEUTRAL.-Also check to make certain that the start circuit cannot be actuated in the DRIVE and REVERSE position.
Raise the steering column into position at instrument panel. Install steering column shroud.
Dec 7, 2010 at 10:57 PM
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Suggested Repair
Disconnect the battery ground cable, remove the steering column shroud, and lower the column. Disconnect the switch wiring, remove the two retaining nuts, and lift the switch off the actuator rod. Install with the column lock and the switch both in LOCK (new switches arrive pinned in LOCK). Engage the actuator rod, set the switch at the mid-position of rod lash, then tighten the nuts. Remove the locking pin, reconnect the battery, and confirm the starter operates only in PARK or NEUTRAL, not in DRIVE or REVERSE. Raise the column and reinstall the shroud.
Conversation Summary
The owner of a 1993 F150 asked what replacing the ignition switch involves. An expert described removing the column shroud, lowering the column, disconnecting the switch, and aligning both the column lock and the new switch in LOCK using the shipping pin. The switch is adjusted for mid rod lash, then the start circuit is checked so it works only in PARK or NEUTRAL before the column and shroud are reinstalled.