Contents Section: Steering Column Switches All sections

Ignition Switch & Lock Cylinder - Except "s" Series GMC Cab & Chassis R2500

Steering Column Switches 2 illustrations ~212 words

DESCRIPTION

The ignition switch is typically mounted on the steering column and actuated by an ignition key locking cylinder.

SERVICING

To gain access to ignition components on General Motors and Jeep vehicles, the steering column must be removed or lowered and the turn signal switch must be removed.

CAUTIONThe lock plate is held by a high spring pressure. DO NOT remove snap ring without using a compressor tool. If the steering shaft has standard threads, use Compressor Tool (J-23653); if the shaft has metric threads use Metric Forcing Screw (J-23653-4).
CAUTIONSpecial care must be taken to avoid bumping, jolting or hammering on the steering shaft and gearshift tube.

Typical Column Type Ignition Switch Lock Cylinder Removal On most vehicles, push in to release lock retainer. Scheme 1

Scheme 1: Typical Column Type Ignition Switch Lock Cylinder Removal On most vehicles, push in to release lock retainer.

REMOVAL (GENERAL MOTORS)

Turn ignition switch to "RUN" position. Remove lock plate, turn signal switch and buzzer switch. Remove lock retaining screw and lock cylinder.

INSTALLATION

Position lock in housing. Turn key to "STOP" position while holding cylinder. Align cylinder with keyway in housing. Push lock in and install retaining screw.

Removal (All Other General Motors Models)

Lower steering column, and support column to avoid causing damage. Remove lock cylinder. Pull switch actuating rod up until there is a definite stop, then move rod down one detent (into "LOCK" position). Remove 2 switch screws and switch assembly from vehicle.

Place lock and switch in "LOCK" position. Install actuating rod into switch, and install switch using mounting screws. Tighten slowly. Ensure switch position is not changed. To complete installation, reverse removal procedure.

Rod-Actuated Ignition Switch. Scheme 2

Scheme 2: Rod-Actuated Ignition Switch