Replacing the Starter: This is a moderately challenging job, requiring some mechanical aptitude and tools. Always disconnect the negative battery terminal before beginning any work on the electrical system.
Tools You'll Likely Need:
* Jack and jack stands: Essential for safe access to the underside of the vehicle. Never work under a car supported only by a jack.
* Socket wrench set: You'll need various sizes, likely including a 13mm, 15mm, and possibly others depending on the specific fasteners.
* Ratchet and extensions: To reach the starter bolts.
* Wrench: For the battery cable nuts.
* Torque wrench: To tighten the starter bolts to the manufacturer's specification. (This prevents damage and ensures proper function)
* Penetrating oil (like PB Blaster): This can help loosen rusted or seized bolts. Apply liberally and let it sit for a while before attempting to remove them.
* Wire brush: To clean the battery terminals and starter connections.
* Gloves and safety glasses: Always important when working on a car.
Steps (General):
1. Disconnect the negative battery terminal. This is crucial to prevent electrical shock and short circuits.
2. Secure the vehicle: Jack up the car and place it securely on jack stands. Consult your owner's manual for proper jack points.
3. Locate the starter: It's on the passenger side of the engine, typically near the bell housing (the part of the transmission that connects to the engine).
4. Disconnect the electrical connections: There will be at least two large cables connected to the starter – one positive (+) and one negative (-). Carefully loosen and remove the nuts securing these cables. Take note of which wire goes where. Take pictures if it helps.
5. Remove the starter mounting bolts: These are usually two or three bolts. Penetrating oil can be your best friend here. Remove the bolts carefully. The starter might be a little heavy, so be prepared to support it as you remove the last bolt.
6. Remove the starter: Carefully lower the starter clear of the engine and transmission.
7. Install the new starter: Reverse the removal process. Make sure the new starter is properly aligned before tightening the mounting bolts.
8. Reconnect the electrical connections: Double-check that the positive and negative cables are connected to the correct terminals.
9. Reconnect the negative battery terminal.
10. Lower the vehicle: Carefully lower the vehicle from the jack stands.
11. Start the engine: Check for proper function.
Important Considerations:
* Consult a Repair Manual: A repair manual specific to your 1991 Buick LeSabre is highly recommended. It will provide detailed diagrams, torque specifications, and potentially other valuable information specific to your vehicle. This will make the job much easier and safer.
* Professional Help: If you are uncomfortable performing this repair yourself, it's best to take it to a qualified mechanic. Starter replacement can be tricky, and improper installation can lead to damage to your vehicle.
This is a general guide. The exact steps may vary slightly depending on the specific engine in your LeSabre. Always refer to a repair manual for your car's year, make, and model for the most accurate and detailed instructions.
