GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Ignition Lock Cylinder

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WARNING
Do not atttempt this service on cars equipped with an air bag. This service should be left to a professional service technician to avoid damage to the system and personal injury.

REMOVAL & INSTALLATION



See Figures 1 and 2

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the steering wheel as previously outlined.
  4.  
  5. On models equipped with a tilt and telescope column, pry up the three tabs on the plastic lock cover. On other models, remove the three screws.
  6.  
  7. Depress the steering wheel lock plate and pry the snapring from the shaft.
  8.  
  9. Remove the lock plat, canceling cam, and upper bearing spring.
  10.  
  11. Remove the turn signal lever. Push the hazard warning knob in and unscrew the knob.
  12.  
  13. Remove the turn signal switch screws and pull the switch up out of the way.
  14.  
  15. Turn the ignition key to the RUN position.
  16.  
  17. Insert a long thin prybar into the slot in the upper bearing housing and depress the release tab while pulling the cylinder from the column.
  18.  

To install:
  1. Insert a new lock cylinder into the column after aligning the key on the cylinder with the keyway in the column.
  2.  
  3. Press inward on the cylinder while turning it clockwise.
  4.  
  5. Install the turn signal switch and screws.
  6.  
  7. Install the turn signal lever. Push the hazard warning knob in and install the screw.
  8.  
  9. Install the upper bearing, canceling cam and lock plate.
  10.  
  11. Install the snapring to the shaft.
  12.  
  13. On models equipped with a tilt and telescope column, push down the three tabs on the plastic lock cover. On other models, install the three screws.
  14.  
  15. Install the steering wheel as previously outlined.
  16.  
  17. Connect the negative battery cable and check all column functions.
  18.  



Click image to see an enlarged view

Fig. Fig. 1: Ignition lock removal; standard columns



Click image to see an enlarged view

Fig. Fig. 2: Ignition lock removal; tilt column

 
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