Mechanical Test

Test the mechanical operation of ignition switch by rotating ignition switch lock cylinder through all switch positions. The movement should feel smooth with no sticking or binding. The ignition switch should return from the START position back to the RUN position without assistance (spring return). If sticking or binding is encountered, check for the following:
^ Burrs on the lock cylinder key
^ Binding lock cylinder
^ Shroud rubbing against lock cylinder
^ Burrs or foreign material around the rack-and-pinion actuator in the lock cylinder housing
^ Insufficient lube on actuator. (DO NOT apply lubricant to the inside of ignition switch)
Binding ignition switch