The cylinder is "clocked" to fit with 180 degrees respective to the Ignition housing. If that was done correctly, then the Ignition housing slipped its slotted mount and is bottomed out and out-of-time. You need to reposition the mount on the steering column.
This should be checked first. Then the end of the rod going to the lockout could be out of adjustment because of the Ignition switch. Check that if the Ignition switch mount is not slotted.
SOURCE: 1989 F150 ignition cylinder switch
Remove the ignition switch cylinder and inspect the contacts in the column. Look for dark spots, scratches, excessive scuffing. My guess is that cleaning the contacts with a little tiny piece of sandpaper and perhaps bending them out a little (so there is more pressure between the contacts when you reinstall the cyclinder) will cure the problem.
SOURCE: starting problems
This is caused by the PCM not powering up. I would replace the PCM power relay in the battery junction box(fuse box under hood).
SOURCE: stuck ignition cylinder 1992 ford taurus
It is not necessary to have the dealer do this, think of the cash! Though it does require patience and time. The pin you are supposed to push in goes into a slot when you have it in run position, since you cannot turn it to run you have to make a slot for the pin to go into, with a drill. Be very careful as you only have a 1/4" of play before you break a washer behind the cylinder. Once you have drilled out the key far enough to the pin hole you can take a nail set and tap the pin up, you can tell when the pin clears the housing, then it just takes wiggle, patience and tinkering to get the cylinder to slide out, keep the green washer and the metal slot washer. Metal slot washer goes in first with green plastic washer ontop of that with lock cylinder in last. You can play around with the new lock cylinder and washer before insertion to determin correct direction.
Here are official directions with inoperable lock cylinder. They say drill out retaining pin but it just spun in circles for me - I looked at new cylinder and saw how it worked. retaining pin needs a place to go.
Removal & Installation (Non-Functional)
NOTE:Use this procedure to remove ignition lock cylinder if key is missing or cylinder is frozen.
Disconnect negative battery cable. Disable air bag system. See appropriate AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS. Wait at least one minute for air bag back-up power supply to deplete. Remove steering wheel. See STEERING WHEEL . Using a 1/8" bit, drill out retaining pin located below lock cylinder on housing. DO NOT drill deeper than 1/2".
Using channel lock pliers, twist lock cylinder cap until it separates from lock cylinder. Using a 3/8" drill bit, drill down center of ignition lock key slot about 1 3/4" until lock cylinder breaks loose from its base.
Remove retainer, washer, and lock cylinder gear from housing. Remove metal shavings from lock cylinder bore. Replace housing if damaged. To install, reverse removal procedure. Connect negative battery cable. Check air bag system for proper system operation. See appropriate AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.
SOURCE: how do I change a ignition switch cylinder in a
how to change a 1988 ford taurus ingition switch ?
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