Understanding and Troubleshooting Alternator Issues in a 99 Nissan Altima

Understanding and Troubleshooting Alternator Issues in a 99 Nissan Altima

As a seasoned SEO expert at Google, I've witnessed countless scenarios where vehicle owners face frustrating alternator failures. My own 1999 Nissan Altima, which has logged under 90,000 miles, has encountered a similar predicament. The alternator, which was newly replaced in December 2012, has failed once again. This article aims to explain what might be causing this issue and how best to approach the situation.

The Nature of Alternator Replacement

Most replaced alternators today are rebuilt, also known as remanufactured. While this practice is perfectly reasonable, it's not without its risks. Builders might occasionally make mistakes, which is why most rebuilt alternators come with a lifetime warranty from the manufacturer. If the alternator fails under warranty, the supplier will replace it as long as you own the car, but you will need to cover the labor costs.

Where to Seek Replacement Parts

For those in need of a new alternator, a place like AutoZone is a reliable option. They typically offer two alternators for less than $150, inclusive of the core charge which can be refunded when you return the existing one. The process of accessing the alternator is straightforward, as it is the round component situated in the lower left-hand corner of the engine bay as shown in the diagram.

Cost Considerations and Labor Charges

In my opinion, charging $850 for an alternator and battery replacement on a 1999 Nissan Altima is overcharging. Replacing an alternator and a battery is a relatively simple task. An alternator typically costs around $150, and a battery costs similarly. Parts alone might total around $300, with labor adding about $200, bringing the total to approximately $550. If additional parts (such as belts, idlers, and tensioners) are replaced, the cost could rise to around $850.

It's crucial to always obtain a written quote to understand the full scope of the work and its costs. If possible, seek a competitive quote from another shop to avoid unexpected expenses.

The Impact of Early Alternator Failure

Alternator failures can occur relatively early, especially if the car's battery isn't up to the task of powering additional electronics while the car is running. This additional load can take a toll on the battery, potentially leading to its premature demise. I've experienced such a scenario with a previously purchased 2001 BMW 540i, where the alternator failed after driving about 2,000 miles. I ended up spending $500 on a factory-refurbished alternator, which was a reasonable price given the circumstances.

Conclusion and Recommendations

Given the warranties, I suggest taking steps to diagnose and address the issue. If you opt to replace the alternator yourself, always check the reliability of the supplier. Alternators, properly maintained and if of good quality, can last for more than 10 years. Should the shop agree to cover the last repair job, consider taking the car to a different shop to find a better supplier. Remember, prior preparation and knowledge of your vehicle's needs can save you a lot in the long run.