Here's a general overview. Specific steps and torque specifications will vary slightly depending on the exact engine (e.g., V6, V8) in your Regal. Always consult a repair manual specific to your year and engine for precise instructions and torque specifications. A Haynes or Chilton manual for your car would be invaluable.
Tools You'll Likely Need:
* Socket wrench set (metric)
* Ratchet
* Extensions
* Torque wrench
* Jack and jack stands (crucial for safety!)
* Wheel chocks
* Pry bar or similar tool
* Wire brush
* Battery terminal cleaner
* New starter motor (make sure it's the correct one for your Regal's engine)
General Steps (Always refer to your repair manual for specifics):
1. Safety First: Disconnect the negative (-) battery cable. This is crucial to prevent electrical shocks and accidental short circuits.
2. Access the Starter: The starter is usually located on the bottom of the engine, on the bell housing (the part connecting the engine to the transmission). You'll likely need to work from underneath the car, using a jack and jack stands to safely lift and support it. This often involves removing some components for better access, potentially including:
* The engine splash shield (if equipped).
* Possibly the exhaust manifold heat shield.
* Maybe parts of the lower engine shroud.
3. Disconnect the Electrical Connections: Carefully disconnect the positive (+) and negative (-) battery cables from the starter solenoid. Take pictures or make notes to ensure you reconnect them correctly. These connections are often secured with bolts or nuts.
4. Remove the Starter Bolts: The starter is usually held in place by two or three bolts. These can be difficult to reach, requiring extensions and possibly a swivel socket. Loosen them carefully before removing them entirely.
5. Remove the Starter: Once the bolts are out, carefully remove the starter. It might be stuck due to corrosion; a pry bar might be needed to gently lever it free. Be mindful of any potential damage to the bell housing or engine block.
6. Clean the Mounting Surfaces: Clean the starter mounting surface on the engine block and the starter itself using a wire brush. This ensures a good connection and prevents future corrosion.
7. Install the New Starter: Position the new starter in its mounting location. Align the mounting holes and carefully install the bolts. Do not overtighten them; use your torque wrench and the specifications from your repair manual.
8. Reconnect the Electrical Connections: Carefully reconnect the positive (+) and negative (-) battery cables to the starter solenoid, ensuring they are securely fastened.
9. Reconnect the Battery: Reconnect the negative (-) battery cable.
10. Test the Starter: Attempt to start the engine. If it doesn't start, double-check all your connections and ensure everything is properly secured.
Important Considerations:
* Torque Specifications: Using the correct torque is critical. Overtightening can damage the starter or engine block. Under tightening can lead to loose connections and failure.
* Ground Connections: Ensure all grounding points are clean and making good contact.
* Wiring: Check the wiring harness for any damage or loose connections.
Again, this is a general overview. Refer to a repair manual specific to your 1989 Buick Regal for detailed instructions and torque specifications. If you're unsure about any step, seek the help of a qualified mechanic. Working under a car is dangerous if you don't take proper safety precautions.
