Safety First:
* Disconnect the negative battery terminal FIRST. This prevents accidental shorts and injury.
* Wear safety glasses to protect your eyes from debris.
* Use jack stands to safely support the vehicle. Never work under a vehicle supported only by a jack.
Tools You'll Likely Need:
* Socket wrench set (metric)
* Ratchet
* Extensions
* Wrenches (metric)
* Pliers
* Screwdrivers (possibly Phillips and flathead)
* Battery terminal cleaner
* New alternator (make sure you get the correct one for your vehicle)
* Torque wrench (highly recommended)
* Possibly a pulley puller (depending on alternator design)
General Steps:
1. Locate the Alternator: The alternator is usually located on the front of the engine, typically near the passenger side. Its location will vary slightly based on your engine.
2. Disconnect the Electrical Connections:
* Carefully disconnect the large power cable (positive) from the alternator. Note the position of the cable for easy reconnection.
* Disconnect the smaller wiring harness connector. Again, note its position.
3. Remove the Alternator Mounting Bolts: You'll need to remove the bolts holding the alternator to the engine block or mounting bracket. These bolts may be difficult to access, requiring extensions and/or different angled sockets.
4. Remove the Belt (if necessary): Depending on the alternator's location and design, you may need to remove the serpentine belt to access the alternator mounting bolts more easily. Look for a belt tensioner pulley; usually, there's a bolt to loosen to release tension on the belt. Then carefully remove the belt. *Consult a repair manual for specifics on your belt routing.*
5. Remove the Alternator: Once the bolts are removed, carefully remove the alternator. It may be heavy, so be prepared to support it.
6. Install the New Alternator:
* Install the new alternator in the reverse order of removal. Make sure it aligns properly with the mounting holes.
* Tighten the mounting bolts to the manufacturer's specified torque. This is crucial to prevent damage.
* Reconnect the smaller wiring harness connector.
* Reconnect the large power cable.
7. Reinstall the Belt (if removed): If you removed the serpentine belt, carefully reinstall it following the correct routing diagram (found in your repair manual). Make sure the belt is properly seated on all pulleys.
8. Reconnect the Battery: Reconnect the negative battery terminal.
9. Test the Alternator: Start the engine and check the voltage with a voltmeter. It should be around 13.5-14.5 volts. If not, there might be a problem with the new alternator or the wiring.
Important Considerations:
* Repair Manual: A repair manual specific to your 1995 Jeep Grand Cherokee is highly recommended. It will provide detailed diagrams, torque specifications, and troubleshooting guidance.
* Difficult Access: Some of the bolts may be difficult to reach, requiring extensions, swivel sockets, and potentially some maneuvering.
* Serpentine Belt Routing: Incorrect belt routing can lead to premature belt wear or damage to other components. Follow the diagram in your repair manual carefully.
* Pulley Removal: In some cases, the pulley might be attached to the alternator with a bolt. If so you might need a pulley puller to remove it.
This is a general overview. The specific steps and challenges may vary depending on the engine and your specific vehicle. Always prioritize safety and consult a repair manual for detailed, accurate instructions. If you're uncomfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic.
