Tools You'll Likely Need:
* Socket set (metric): Various sizes, including likely 10mm, 13mm, 15mm, and possibly larger.
* Wrench set (metric): For those hard-to-reach bolts or as backups to sockets.
* Ratchet and extensions: To reach those hard-to-reach bolts.
* Pliers: Needle-nose pliers might be helpful for electrical connections.
* Screwdrivers: Phillips and possibly flathead.
* Jack and jack stands: Essential for safety. Never work under a car supported only by a jack.
* Wheel chocks: To secure the vehicle.
* Battery terminal cleaner: Recommended to clean terminals before disconnecting and reconnecting the battery.
* New alternator: Make sure you get the correct one for your specific year and engine.
* Gloves: Protect your hands.
* Safety glasses: Protect your eyes from flying debris.
* Repair manual: Crucial for specific instructions and torque specifications.
General Steps (Consult your repair manual for precise details):
1. Disconnect the battery: This is the most crucial safety step. Disconnect the negative (-) terminal first, then the positive (+) terminal.
2. Access the alternator: On a 1997 LHS, the alternator is typically located on the front of the engine, often towards the passenger side. You'll likely need to remove some components for access. This might include:
* Removing the serpentine belt: This usually involves loosening the tensioner pulley. The method varies slightly depending on the engine, so check your manual carefully. There are often diagrams showing how to route the belt back on.
* Removing various brackets or shrouds: The alternator might be partially obstructed. Your repair manual will show what needs to be removed and how.
3. Disconnect the electrical connections: There will be at least two connectors on the alternator: one for the power wire and one for the exciter wire (smaller wire). Carefully disconnect these. Take pictures or make notes of how they connect, to avoid confusion during reassembly.
4. Remove the alternator mounting bolts: These bolts hold the alternator in place. They are likely located on the top and bottom of the alternator. Carefully remove these bolts.
5. Remove the alternator: Once the bolts are removed, carefully remove the alternator from its position. It might be a little heavy.
6. Install the new alternator: Reverse the removal process. Make sure the new alternator is properly aligned before tightening the mounting bolts.
7. Reconnect the electrical connections: Connect the power and exciter wires securely to the new alternator.
8. Reinstall the serpentine belt: Carefully route the belt back around the pulleys according to your repair manual.
9. Reconnect the battery: Connect the positive (+) terminal first, then the negative (-) terminal.
10. Start the engine: Check for any issues or warning lights.
Important Considerations:
* Serpentine Belt Tensioner: This is a crucial part of the process. The belt tensioner needs to be loosened to remove and install the belt. Improperly handling this can lead to damage.
* Torque Specifications: Always tighten bolts to the manufacturer's specified torque. Over-tightening can strip threads or damage the alternator. Under-tightening can lead to vibration and eventual failure.
* Electrical Connections: Ensure all electrical connections are secure. Loose connections can lead to problems.
This is a general overview. Using a repair manual specific to your 1997 Chrysler LHS is absolutely essential for accurate and safe completion of this repair. If you are not comfortable with automotive repair, it's best to take your vehicle to a qualified mechanic.
