Tools You'll Need:
* Jack and jack stands: Essential for safe vehicle lifting.
* Wheel chocks: To secure the vehicle.
* Wrench set (metric): Various sizes will be needed. A socket wrench set with ratchet is highly recommended.
* Power steering pump pulley wrench: Special tool to remove the pulley. (Sometimes a combination of wrenches can work, but this tool makes it much easier.)
* Drain pan: To catch the power steering fluid.
* New power steering pump: Ensure you get the correct pump for your specific Suburban's engine (5.7L or 7.4L).
* New power steering fluid: The correct type for your vehicle. Check your owner's manual.
* New power steering pump belt: It's best to replace this while you're in there.
* Socket extensions and universal joint: For difficult to reach bolts.
* Gloves: To protect your hands.
* Safety glasses: To protect your eyes.
* Torque wrench: To tighten bolts to the manufacturer's specifications (consult your repair manual).
* Shop rags or paper towels: For cleanup.
* Repair manual: A Chilton's or Haynes manual specific to your 1997 Suburban is highly recommended. This will provide detailed instructions and diagrams specific to your vehicle.
Steps (General Outline - Consult your repair manual for specifics):
1. Safety First: Disconnect the negative battery terminal. Raise the vehicle securely using a jack and jack stands. Place wheel chocks on the wheels that remain on the ground.
2. Drain Power Steering Fluid: Locate the power steering fluid reservoir and drain the fluid into a drain pan.
3. Remove the Power Steering Pump Belt: Route the belt around the pulleys and carefully remove it. You may need to loosen the tensioner pulley to make this easier.
4. Remove the Power Steering Pump Pulley: Use the special pulley wrench to remove the pulley from the pump shaft.
5. Disconnect the Power Steering Lines: There will be high-pressure and low-pressure lines connected to the pump. Use wrenches to carefully loosen and disconnect these lines. Be prepared for some fluid leakage. Have rags ready.
6. Remove the Power Steering Pump Mounting Bolts: Locate the bolts holding the pump to the engine block. Use the appropriate wrenches to remove these bolts.
7. Remove the Old Pump: Carefully remove the old power steering pump from the engine.
8. Install the New Pump: Install the new pump in reverse order of removal. Ensure the pump is properly seated and aligned.
9. Install the Power Steering Pump Pulley: Install the new pulley (if necessary; some pumps come pre-assembled).
10. Reconnect the Power Steering Lines: Carefully reconnect the power steering lines. Tighten to the manufacturer's specifications.
11. Install the Power Steering Pump Belt: Install the new power steering pump belt, ensuring it's correctly routed around all the pulleys.
12. Add Power Steering Fluid: Add the correct type and amount of power steering fluid to the reservoir.
13. Lower the Vehicle: Carefully lower the vehicle from the jack stands.
14. Bleed the Power Steering System: Start the engine and turn the steering wheel from lock to lock several times. Check the fluid level and add more as needed. Look for any leaks.
15. Reconnect the Battery: Reconnect the negative battery terminal.
Important Considerations:
* Fluid Type: Use the correct power steering fluid specified in your owner's manual. Using the wrong fluid can damage the pump.
* Torque Specifications: Use a torque wrench to tighten bolts to the correct specifications to prevent damage.
* Leaks: Check for leaks after installation. If you see any leaks, you'll need to re-inspect your work.
* Repair Manual: A repair manual is crucial for detailed instructions and diagrams. This outline is a general guide only.
Remember, this is a complex procedure. If you lack experience, it's best to consult a professional mechanic. Improper installation can result in damage to your vehicle and potentially serious injury.
