GM Chevy Mid-Size Cars 1964-1988 Repair Guide

Ignition Switch

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REMOVAL & INSTALLATION



The ignition switch on most Chevrolet mid-sized vehicles is located on the steering column. Some earlier models were equipped with a dash-mounted switch. For earlier vehicles, please refer to the procedure in Chassis Electrical of this guide.

The switch is located inside the channel section of the brake pedal support and is completely inaccessible without first lowering the steering column. the switch is actuated by a rod and rack assembly. A gear on the end of the lock cylinder engage the toothed upper end of the rod.

When servicing any components on the steering column, should any fasteners require replacement, be sure to use only nuts and bolts of the same size and grade as the original fasteners. Using screws that are slightly too long could prevent the column from the collapsing during a collision.

  1. Disconnect the negative battery cable.
  2.  
  3. Carefully support and lower the steering column assembly for access to the switch.
  4.  
  5. Place the ignition switch in the OFF/UNLOCKED position and move the actuating rod two detents from the top.
  6.  
  7. Remove the two mounting screws, then remove the ignition switch assembly.
  8.  

To install:
  1. Place the new switch in the OFF/UNLOCKED position and make sure the ignition lock cylinder and the actuating rod are both in the OFF/UNLOCKED (2nd detent from the top) position.
  2.  
  3. Install the actuating rod into the switch, mount the switch to the column and torque the mounting screws to 3 ft. lbs. (4 Nm).
  4.  
  5. Raise the steering column into position and tighten the column-to-bracket nuts to 25 ft. lbs. (34 Nm).
  6.  
  7. Connect the negative battery cable.
  8.  

 
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