Tools You'll Likely Need:
* Socket wrench set (metric)
* Ratchet and extensions
* Wrenches (metric)
* Battery terminal wrench
* Pry bar or similar tool
* Jack and jack stands (essential for safety!)
* Wheel chocks
* Safety glasses
* Gloves
* New alternator (ensure it's the correct one for your vehicle)
Procedure:
1. Disconnect the Battery: This is crucial to prevent electrical shorts and injury. Disconnect the negative (-) terminal first, then the positive (+) terminal.
2. Safety First: Secure the vehicle using jack stands after raising it safely with a jack. Never work under a vehicle supported only by a jack. Place wheel chocks on the wheels that remain on the ground.
3. Access the Alternator: On the Cavalier, the alternator is typically located on the front of the engine, near the passenger side. Access may be somewhat limited. You might need to remove or loosen some components to get a better view and reach. This often involves:
* Loosening or removing the serpentine belt: This is usually the first step. Consult your repair manual for the correct procedure for your specific engine. You'll need a serpentine belt tensioner tool (often a special wrench or pulley) to release the tension on the belt.
* Removing or loosening other components: You may need to move or partially remove other components (like air intake hoses or brackets) to gain access to the alternator bolts. Again, your repair manual will guide you here.
4. Disconnect the Alternator Wiring: Carefully disconnect the wiring harness connector from the alternator. Take note of how it's connected for reassembly. You'll also need to disconnect the thick positive (+) cable.
5. Remove the Alternator Mounting Bolts: Carefully remove the bolts securing the alternator to the engine. There are usually two or three.
6. Remove the Alternator: Once the bolts are out, carefully remove the alternator. It may be a bit snug, so gentle prying or wiggling may be necessary.
7. Install the New Alternator: Reverse the removal process. Make sure the new alternator is properly aligned before tightening the mounting bolts.
8. Reconnect the Wiring: Reconnect the wiring harness connector and the thick positive (+) cable. Ensure secure connections.
9. Reinstall the Serpentine Belt: Carefully reinstall the serpentine belt, ensuring it's properly routed around all pulleys. Refer to your repair manual for the correct routing.
10. Reconnect the Battery: Reconnect the positive (+) terminal, then the negative (-) terminal.
11. Test the Alternator: Start the engine and check the charging system voltage with a multimeter to ensure the new alternator is functioning correctly. The voltage should be around 13.5-14.5 volts.
Important Considerations:
* Repair Manual: A repair manual specific to your 1999 Chevy Cavalier 2.4L is invaluable. It provides detailed instructions, diagrams, torque specifications, and component locations.
* Torque Specifications: Tighten all bolts to the correct torque specifications as listed in your repair manual. Over-tightening can damage components.
* Serpentine Belt Tensioner: Be cautious when working with the serpentine belt tensioner. It can spring back suddenly if not properly controlled.
* Professional Help: If you're not comfortable working on your vehicle, consider taking it to a qualified mechanic.
This is a general guide. Always prioritize safety and consult a repair manual for your specific vehicle before attempting this repair. Incorrect procedures can lead to damage or injury.
