Chevrolet Full Size Cars 1979-1989

Ignition Switch

Print

REMOVAL & INSTALLATION



The ignition switch on all Chevrolet full size vehicles covered by this guide is found on the steering column, located inside the channel section of the brake pedal support. The switch is all but 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 engages 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 too long could prevent the column from collapsing during a collision.

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the fasteners, then 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 retaining nut and bolts. For vehicles through 1985, tighten the retaining nuts to 25 ft. lbs. (34 Nm) and the retaining bolt(s) to 30 ft. lbs. (40 Nm). For 1986-88 vehicles, tighten the retaining nuts and bolt(s) to 22 ft. lbs. (30 Nm). For 1989 vehicles, tighten the support bracket-to-column jacket screws to 22 ft. lbs. (30 Nm) and the column-to-column upper support screws to 18 ft. lbs. (25 Nm).
  6.  
  7. Connect the negative battery cable.
  8.  

 
label.common.footer.alt.autozoneLogo