F 350 4WD Pickup V8-351 5.8L VIN H EFI (1997)
Ignition Switch Lock Cylinder: Service and Repair
Replacement, Functional
REMOVAL
NOTE: The following procedure applies to vehicles that have functional lock cylinders and keys. If key numbers are known, the proper key can be
made.
1. Disconnect the battery ground cable.
2. Remove the ignition switch lock cylinder.
(1) Position the lock cylinder to RUN.
(2) Using a suitable tool, push upward on the cylinder release tab through the hole in the lower shroud while pulling the cylinder outward.
INSTALLATION
1. Install the ignition switch lock cylinder by turning it to the RUN position. Insert the ignition switch lock cylinder into the steering column housing.
Make sure the ignition switch lock cylinder is fully seated and aligned in the interlocking washer before turning the key to the OFF position. This
will permit the retaining pin of the ignition switch lock cylinder to extend into the hole of the steering column.
2. Rotate the ignition switch lock cylinder, using the key, to ensure correct mechanical operation in all positions.
3. Reconnect the battery ground cable.
NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control
module relearns its adaptive strategy. The vehicle may need to be driven 16 km (10 miles) or more to relearn the strategy.
