GM Chevy Mid-Size Cars 1964-1988 Repair Guide

Ignition Switch/Lock Cylinder

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REMOVAL & INSTALLATION



Chevrolet mid-sized vehicles from 1964-68 are equipped with a dash mounted ignition switch. The below procedure may be used for these vehicles. All models made in 1969 and later are equipped with ignition switches which are mounted in the steering column. For procedures on vehicles equipped with steering column mounted switches, please refer to Suspension & Steering of this guide .

  1. Disconnect the negative battery cable.
  2.  
  3. Put the ignition switch in the Accessory (ACC) position.
  4.  

Although not absolutely necessary, you may wish to remove the ashtray and radio at this point for ease of access.

  1. Insert a wire into the small hole in the face of the lock cylinder. Push in on the wire to depress the plunger. Continue turning the key until the cylinder can be removed from the switch.
  2.  
  3. Remove the switch bezel nut, and then pull the switch out from under the dash.
  4.  
  5. Go in from the front of the switch with a screwdriver and unsnap the theft resistant locking tangs on the connector and then unplug the connector.
  6.  

To install:
  1. Engage the electrical connector to the switch, then position the switch under the dash and install the switch bezel nut.
  2.  
  3. Install the lock cylinder to the switch. It most applications, the key should be installed and turned to the ACC, START or RUN positions in order to install the cylinder. If in doubt, check the switch or cylinder manufacturer's instructions, as applicable.
  4.  
  5. Once the cylinder is installed, turn the key back to the LOCK position.
  6.  
  7. Connect the negative battery cable, then verify proper switch and cylinder operation.
  8.  

 
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