Operation CHARM: Car repair manuals for everyone.

Ignition Switch Mechanical Check

Ignition Switch Mechanical Check

Test the mechanical operation of the ignition switch by rotating the lock cylinder through all switch positions. The movement should not stick or bind and should return from the START position back to the ON position without assistance (spring return). If sticking or binding is encountered, check for the following:
^ burrs on the lock cylinder key
^ insufficient lube on the lock cylinder
^ binding lock cylinder
^ shroud rubbing against the lock cylinder
^ binding ignition switch

If the steering wheel lock is engaged with the wheels loaded against a curb, high effort will be necessary to turn the key from LOCK. Turn the steering wheel to either side of the lock to unload the system.