Tools You'll Need:
* Power steering pump pulley puller: This is crucial. A generic puller might not work; you may need one specifically designed for your pump. Check auto parts stores or online retailers specifying your vehicle year and model.
* Socket wrench and sockets: Appropriate sizes for your power steering pump bolts.
* Torque wrench: To tighten the pulley bolt to the manufacturer's specified torque. This prevents damage to the pump. Consult your repair manual for the correct torque specification.
* Wrench: For holding the pulley in place (potentially).
* Pry bar (optional): May be helpful to gently separate the pulley from the pump shaft.
* Clean rags: To keep the area clean.
* Shop manual (highly recommended): Provides specific torque values and detailed diagrams.
Procedure:
1. Disconnect the Battery: Always disconnect the negative battery terminal before working on any automotive electrical system.
2. Access the Power Steering Pump: Locate the power steering pump. You'll likely need to remove some components for better access, such as the serpentine belt and potentially some shrouding or other parts. Consult your repair manual for the specific steps involved.
3. Remove the Old Pulley (if it's off): If the pulley is already off, skip this step. If it's still on, use the power steering pump pulley puller according to its instructions. This usually involves attaching the puller to the pulley, then tightening the puller's center bolt to pull the pulley off the shaft. Be careful not to damage the pump shaft.
4. Clean the Pump Shaft and Pulley: Thoroughly clean the power steering pump shaft and the inside bore of the pulley. Any debris can prevent proper seating and cause premature failure.
5. Install the Pulley: Carefully align the pulley with the pump shaft. Push it onto the shaft until it seats fully.
6. Tighten the Pulley Bolt: Tighten the pulley bolt using the correct size socket and torque wrench. Do NOT overtighten. Consult your repair manual for the correct torque specification.
7. Reinstall Components: Reinstall any components you removed to access the pump, such as the serpentine belt and shrouds. Make sure the belt is correctly routed.
8. Reconnect the Battery: Reconnect the negative battery terminal.
9. Check for Leaks and Proper Function: Start the engine and check for any leaks around the power steering pump. Carefully inspect the power steering system for any unusual noises or leaks. If there's a leak, you might have damaged the pump's seal during the process.
Important Notes:
* If you're unsure about any step, consult a professional mechanic. This is not a beginner-level repair, and incorrect procedures can damage the power steering pump or other components.
* The specific procedure might vary slightly depending on your particular Suburban's configuration. Always refer to a repair manual specific to your vehicle's year and model for the most accurate instructions and torque specifications.
* Using the correct puller is essential. Using the wrong tool can easily damage the pump.
By carefully following these steps and consulting your repair manual, you should be able to reinstall your power steering pump pulley. Remember safety first and don't hesitate to seek professional help if you are uncomfortable performing this repair.
