Safety First:
* Disconnect the battery negative terminal. This prevents accidental short circuits.
* Use jack stands. Never work under a car supported only by a jack.
* Wear safety glasses. Compressed air can be dangerous.
* Have a helper. This job is much easier with an extra set of hands.
Tools You'll Need:
* Jack and jack stands: To lift and support the vehicle.
* Wheel chocks: To secure the front wheels.
* Sockets and wrenches: Various sizes, likely including metric. Consult your repair manual for specifics.
* Air compressor: To inflate the new air shocks. A gauge is helpful.
* Wrench or socket for the air line connection: This may vary depending on the year.
* Penetrating oil (PB Blaster or similar): To help loosen rusted bolts.
* New air shocks: Ensure you get the correct replacements for your year and model.
* Shop rags or towels: To keep things clean.
* Repair manual specific to your Bonneville's year and model: Absolutely essential!
General Steps (Consult your repair manual for precise details):
1. Preparation: Secure the vehicle safely on jack stands. Remove the wheels.
2. Disconnect the Air Lines: Locate the air lines connected to the old shocks. Use the correct wrench to disconnect them. Be prepared for some air pressure to escape. Be careful not to damage the air lines.
3. Remove the Shock Mounting Bolts: These bolts are typically located at the top and bottom of the shock. Apply penetrating oil if necessary and allow it to soak. Use the appropriate sockets and wrenches to carefully remove these bolts. They can be stubborn due to rust.
4. Remove the Old Air Shocks: Once the bolts are removed, carefully lower the shock assembly. It may be heavy, so be cautious.
5. Install the New Air Shocks: Position the new air shocks in place, ensuring they are correctly aligned. Install the mounting bolts and tighten them securely, but avoid over-tightening.
6. Reconnect the Air Lines: Connect the air lines to the new air shocks.
7. Inflate the Air Shocks: Use the air compressor to inflate the new air shocks to the manufacturer's recommended pressure. This pressure is usually found in your repair manual or on the air shock packaging.
8. Lower the Vehicle: Carefully lower the vehicle back to the ground.
9. Test and Inspect: Inspect all connections and ensure everything is secure. Test drive the vehicle to check for proper suspension function.
Important Considerations:
* Air Suspension System: Pontiac Bonnevilles with air suspension systems are more complex than those with conventional shocks. Improper repair can damage the entire system.
* Rust: Older Bonnevilles are prone to rust, which can make this job significantly more difficult. Expect to spend extra time freeing rusted bolts.
* Professional Help: If you're not comfortable working on your car, or if you encounter unexpected difficulties, consider taking it to a qualified mechanic. This job is best done with experience.
This is a simplified guide. Always refer to your vehicle's repair manual for detailed instructions and torque specifications. Failing to do so could result in damage to your vehicle or personal injury.
