Here's a general guide. Specifics may vary slightly depending on your engine (2.5L or 4.0L). Always consult a repair manual specific to your year and engine for precise instructions and diagrams. A Haynes or Chilton manual is a worthwhile investment.
Tools You'll Likely Need:
* Socket set: Various sizes, including metric and likely SAE.
* Wrench set: Again, both metric and SAE.
* Ratchet and extensions: To reach those hard-to-get-to bolts.
* Jack and jack stands: Essential for safe working conditions. Never work under a vehicle supported only by a jack.
* Wheel chocks: To secure the vehicle.
* Battery terminal wrench: For disconnecting the battery.
* Pry bar (optional): May be needed to help separate components.
* Wire brush: To clean battery terminals and starter connections.
* New starter motor: Ensure you get the correct one for your vehicle's engine.
Steps:
1. Disconnect the Battery: Disconnect the negative (-) terminal first, then the positive (+).
2. Prepare the Vehicle: Jack up the Jeep Cherokee and securely support it on jack stands. Place wheel chocks on the wheels that remain on the ground.
3. Access the Starter: The starter's location varies slightly depending on the engine. Generally, it's located on the engine block, often near the bell housing (where the transmission meets the engine). You may need to remove some components for better access. This could include:
* Heat shields: These may need to be carefully removed and set aside.
* Exhaust components: Depending on your specific engine, you might need to loosen or remove some exhaust parts to improve access. Use caution as these components are hot if the engine has been running recently.
4. Disconnect the Starter Wires: There will be at least two wires connected to the starter: a large positive (+) cable and a smaller wire. Use a wrench or socket to carefully disconnect these cables from the starter. Take note of how they're connected.
5. Remove the Starter Bolts: The starter is usually held in place by two or more bolts. Locate and carefully remove these bolts. You'll likely need a ratchet and extensions to reach them.
6. Remove the Starter: Once the bolts are removed, gently wiggle the starter free from its mounting position. It might be a bit tight; a gentle pry bar can be helpful, but be careful not to damage anything.
7. Install the New Starter: Carefully align the new starter with its mounting points. Insert the bolts and tighten them securely.
8. Reconnect the Wires: Reconnect the positive (+) and smaller wires to the new starter, ensuring they're securely fastened.
9. Reassemble: Carefully reinstall any components that were removed to access the starter (heat shields, exhaust parts, etc.).
10. Reconnect the Battery: Reconnect the positive (+) terminal and then the negative (-) terminal.
11. Test the Starter: Attempt to start the engine. If it doesn't start, double-check all connections.
Important Considerations:
* Consult a repair manual: This guide provides a general overview. A repair manual specific to your 1989 Jeep Cherokee Laredo is crucial for accurate instructions and diagrams.
* Safety first: Always disconnect the battery before working on the electrical system. Use jack stands, not just a jack, to support the vehicle.
* Torque specifications: Consult your repair manual for the correct torque specifications for the starter bolts. Over-tightening can damage the starter or its mounting points.
* Clean connections: Use a wire brush to clean the battery terminals and starter connections before reconnecting them. This will help ensure a good electrical connection.
This is complex work, and if you're not comfortable with automotive repair, it's best to take your Jeep to a qualified mechanic. Attempting this without the proper knowledge and tools could lead to injury or further damage to your vehicle.
