1. Disconnect the negative battery terminal.
2. Remove the serpentine belt.
3. Remove the alternator bracket bolt.
4. Remove the alternator mounting bolts.
5. Remove the alternator from the vehicle.
Here are some additional tips for removing the alternator from a 2002 Nissan Altima 3.5 SE:
* Be careful not to drop the alternator. It is a heavy piece of equipment and could cause serious injury if it falls on you.
* Use a breaker bar to loosen the alternator bracket bolt. This bolt is often very tight, and you may need some extra leverage to break it loose.
* Be careful not to damage the alternator mounting bolts. These bolts are easily stripped, and you will need to replace them if they are damaged.
* If you are uncomfortable removing the alternator yourself, you can always take your vehicle to a qualified mechanic.
