Before you begin:
* Safety First: Disconnect the negative battery terminal before starting any work on the electrical system.
* Gather Tools: You'll need a variety of tools, including wrenches, sockets, a torque wrench, pliers, a drain pan, and possibly a pulley puller/installer.
* New Pump and Fluids: Ensure you have a new power steering pump, the correct power steering fluid (check your FSM for the specific type), and new gaskets/seals if needed.
General Steps (Consult your FSM for specifics):
1. Drain Power Steering Fluid: Locate the power steering fluid reservoir and drain the old fluid into a suitable container.
2. Remove Old Pump: This will involve removing belts, disconnecting lines (carefully!), and potentially removing other components that might interfere (e.g., brackets). You may need to loosen or remove pulleys. Note the position of everything carefully before you remove it! Take pictures if helpful.
3. Clean Mounting Surface: Thoroughly clean the engine block mounting surface where the pump will attach. Any debris can interfere with a good seal.
4. Install New Pump: Carefully install the new pump, ensuring that all gaskets and seals are in place and properly seated.
5. Reconnect Lines: Reconnect the power steering lines, ensuring they are tightened to the correct torque specifications (found in your FSM). Double-check for leaks.
6. Install Belt(s): Carefully reinstall the serpentine belt(s) ensuring proper routing. Use a belt tensioner tool if needed.
7. Add Power Steering Fluid: Add the correct type and amount of power steering fluid to the reservoir (check your FSM).
8. Bleed the System: This is crucial to remove air from the system. The bleeding procedure varies depending on the system. Your FSM will explain this. It typically involves turning the steering wheel lock-to-lock several times with the engine running (while checking fluid level).
9. Test and Inspect: Start the engine and check for leaks around the pump and lines. Turn the steering wheel lock-to-lock to check for proper operation. Listen for any unusual noises.
Important Considerations:
* Belt Tension: Incorrect belt tension can lead to premature wear and failure. Use a tension gauge if possible to ensure it's within specification.
* Torque Specifications: Use a torque wrench to tighten bolts to the manufacturer's specifications to prevent damage.
* Fluid Type: Using the wrong power steering fluid can damage the pump and system.
This is a simplified overview. Always consult your 1989 Corvette's factory service manual for detailed instructions and torque specifications. If you're not comfortable performing this task yourself, take your Corvette to a qualified mechanic. Improper installation can lead to serious damage to your vehicle.
