The lock bolt spring is broken

Replace the spring.

Damaged sector tooth

Replace the sector tooth.

Faulty lock cylinder

Replace the lock cylinder.

The housing is damaged

Replace the housing.

The rack is damaged

Replace the rack.

There is interference between the bowl and the coupling

Adjust or replace the bowl or coupling.

The ignition switch is stuck

Adjust or replace the ignition switch.

The actuator rod is restricted or bent

Adjust or replace the actuator rod.