GM Service Manual Online
For 1990-2009 cars only

Condition

Causes

A high lock effort exists.

    â€¢ The lock cylinder is damaged.
    â€¢ The ignition switch is damaged.
    â€¢ A rack preload spring is broken.
    â€¢ A rack preload spring is broken.
    â€¢ Burrs exist on the following items:
       - The sector
       - The rack
       - The housing
       - The support
       - The actuator rod coupling
    â€¢ The sector shaft is bent.
    â€¢ A rack is damaged.
    â€¢ The housing is extreme misaligned to the cover.
    â€¢ A coupling slot in the rack is distorted.
    â€¢ An actuator rod is damaged.
    â€¢ The ignition switch mounting bracket is bent.
    â€¢ An actuator rod is restricted.
    â€¢ The key cut is damaged.
    â€¢ The key cut is incorrect.
    â€¢ The park lock cable is incorrectly adjusted.
    â€¢ The park lock components are damaged.