This is a general outline, and the exact steps may vary slightly depending on the specific condition of your vehicle. Always consult a repair manual specific to your 1991 Oldsmobile 88 Royale for detailed instructions and diagrams. A factory service manual is highly recommended.
General Steps (Consult your repair manual for specifics):
1. Safety First: Disconnect the negative battery terminal. This prevents accidental short circuits.
2. Steering Wheel Removal: Remove the steering wheel. This usually involves using a steering wheel puller tool. Be aware of the airbag if your vehicle is equipped with one—disconnecting it incorrectly can cause deployment. Refer to your repair manual for airbag-related procedures; this is critical for safety.
3. Column Components Removal: Disconnect various components connected to the steering column, including:
* Wiring harness: Carefully label and document all connections before disconnecting.
* Shift linkage (if applicable): Disconnect the linkage from the column.
* Ignition switch: This is often mounted on the steering column and will need to be removed.
* Turn signal switch: Disconnect and remove this.
* Hazard light switch: Disconnect and remove this.
* Cruise control components (if applicable): Disconnect these as well.
* Column-mounted controls (if applicable): Remove any other components like wiper or headlight switches mounted on the column.
4. Column Mounting Removal: The column is typically secured by bolts and possibly clamps. Locate and remove these fasteners. You may need to access these bolts from under the dash.
5. Column Removal: Carefully lower the steering column, taking note of its position and orientation. There may be intermediate shafts or other components that need to be disconnected before you can fully remove the column.
6. Installation of the New Column: The installation process is essentially the reverse of the removal. Ensure everything is properly connected and aligned before tightening any bolts. Pay particular attention to the ignition switch and wiring harness connections.
7. Steering Wheel Reinstallation: Reinstall the steering wheel, ensuring it is properly tightened and aligned.
8. Reconnect Components: Reconnect all the previously removed components, verifying that everything is functioning correctly.
9. Test: Reconnect the battery and test all steering column-related functions (turn signals, wipers, ignition, cruise control, etc.).
Important Considerations:
* Alignment: The steering wheel must be properly aligned after installation. You may need a professional alignment afterwards.
* Torque Specifications: Use the correct torque specifications for all bolts and fasteners to prevent damage or failure.
* Airbag System: If your vehicle has an airbag system, you must follow the correct procedures for disconnecting and reconnecting it. Improper handling can result in accidental deployment.
* Professional Help: If you are not comfortable performing this repair, take your vehicle to a qualified mechanic.
This is a general overview. The specifics will vary greatly depending on your vehicle's exact configuration. Always refer to your 1991 Oldsmobile 88 Royale repair manual for detailed instructions and diagrams. Attempting this without proper knowledge and tools can be dangerous and result in damage to your vehicle or personal injury.
