Tools You'll Need:
* Wrench or socket: The correct size for your power steering pump pulley bolt. This is often a large bolt and may require a breaker bar for extra leverage. Check your car's repair manual for the correct size.
* Pulley puller: A power steering pulley puller specifically designed for this application. Improvised methods can damage the pump.
* Socket wrench or ratchet: To turn the pulley puller.
* Penetrating oil (like PB Blaster): To loosen any seized bolts.
* Jack and jack stands: To safely lift the vehicle.
* Wheel chocks: For safety.
* Gloves and safety glasses: Protect yourself.
* Torque wrench (optional but recommended): To tighten the pulley bolt to the correct specification after reassembly.
Procedure:
1. Safety First: Park your car on a level surface, engage the parking brake, and use wheel chocks. Jack up the front end and securely support it on jack stands. Never work under a vehicle supported only by a jack.
2. Locate the Pulley Bolt: The bolt is usually located in the center of the power steering pump pulley.
3. Apply Penetrating Oil: Generously spray penetrating oil onto the pulley bolt. Let it soak for at least 15-20 minutes to help break free any corrosion or rust.
4. Remove the Pulley Bolt: Use the appropriate wrench or socket and breaker bar (if needed) to remove the bolt. Turn it counterclockwise. It will likely be very tight.
5. Install the Pulley Puller: Carefully install the pulley puller according to the manufacturer's instructions. This usually involves threading the puller onto the shaft and then tightening the puller's central bolt. Ensure the puller is properly seated and engaged with the pulley before applying force.
6. Remove the Pulley: Slowly and carefully tighten the puller's central bolt. This will pull the pulley off the shaft. If it's particularly stubborn, you might need to gently tap the puller with a hammer to help it start.
7. Clean the Shaft: Clean the power steering pump shaft of any debris or corrosion before installing a new pulley.
8. Install the New Pulley (if needed): If replacing the pulley, carefully align the new pulley with the shaft and push it on. Tighten the pulley bolt to the manufacturer's specified torque using a torque wrench.
Important Considerations:
* Consult a Repair Manual: Always refer to a repair manual specific to your 2005 Chevrolet Impala. This will provide detailed instructions, torque specifications, and diagrams.
* Professional Help: If you're not comfortable performing this repair yourself, it's best to take your car to a qualified mechanic. Improper removal can damage the power steering pump.
* Pulley Condition: Inspect the pulley for any cracks, damage, or wear. If it's damaged, replace it. A damaged pulley can cause serious problems.
Remember to always prioritize safety when working on your vehicle. If you're unsure about any step, seek professional help.
