Nissan Altima Alternator/Battery Problems


What are the symptoms of a bad alternator Nissan Altima?

What are the Symptoms of a Bad Alternator?

  • Unable to start.
  • Whining or screeching sound after the vehicle has started.
  • Battery warning light appearing on the dashboard.
  • Dim headlights or interior lights.
  • Burning rubber smell under the hood.
  • Devices not charging.


How do I know if the problem is my battery or alternator?

If the engine starts but dies immediately, your alternator probably isn’t keeping your battery charged. If a jump starts and keeps your car running, but the car can’t start again off of its own power, a dead battery is probably your answer.

What are the symptoms of a defective alternator?

7 Signs of a Failing Alternator

  • Dim or Overly Bright Lights. …
  • Dead Battery. …
  • Slow or Malfunctioning Accessories. …
  • Trouble Starting or Frequent Stalling. …
  • Growling or Whining Noises. …
  • Smell of Burning Rubber or Wires. …
  • Battery Warning Light on Dash.


How much does it cost to replace an alternator on a Nissan Altima?

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The average cost for a Nissan Altima alternator replacement is between $554 and $721. Labor costs are estimated between $71 and $90 while parts are priced between $483 and $631. This range does not include taxes and fees, and does not factor in your specific model year or unique location.

Can a bad alternator ruin a battery?

A bad battery won’t damage the alternator, but a bad alternator can damage a battery. The car battery simply isn’t made to deliver electrical energy for extended periods, so both components need to be functioning optimally.

Can you jumpstart a car with a bad alternator?

You actually can jumpstart a car with a bad alternator, and the car will keep running for some time, no matter how bad the alternator is, well, considering you have a good battery. This is because if the alternator is bad and not producing the voltage required, the car will be running purely off the battery.

Is it my battery or alternator or starter?

If you hear a whine or the sound goes fuzzy when you hit the gas, your alternator is probably failing. If the vehicle won’t crank or start but the headlights are still working, look to problems with the starter or other parts of the engine.

What does a faulty alternator sound like?

A common sound made by failing alternators is a very high pitched whining noise that you’ll hear when the engine is running. When the RMPs increase, such as when you accelerate, you’ll hear the noise get higher in pitch as the pulley spins faster.

How much does it cost to fix the alternator?

Labor costs vary as well, since some alternators are easier to get to and thus take less time, but expect to pay between $200 and $600 for the labor. All together, expect to pay somewhere in the range of $350 to $900 total for an alternator replacement.

How long does Nissan Altima alternator last?

between 80,000 and 150,000 miles

Like every part of your Nissan vehicle, your alternator was built to last for many miles. Typically, an alternator will last between 80,000 and 150,000 miles.

What can damage a car alternator?

Driving a vehicle through water that is deep enough to splash or flood the alternator can damage the alternator shaft bearings and possibly the brushes and electronics inside the unit as well. Water can also cause corrosion that over time will damage the wiring and bearings inside the alternator.

What happens if your alternator goes out while driving?

If you have a newer car with electrical power steering, a failed alternator while driving can present some challenges as you’ll lose all power steering. In such cases, don’t drive the car at all. Doing so can cause the engine to overheat, which can cause severe damage.

Do alternators fail suddenly?

When your alternator begins to fail it can cause a variety of different electrical problems in your car, and eventually cause a breakdown. Alternators can go bad suddenly, or slowly over time.

How can I temporarily fix my alternator?

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And you want to tap it now in my case I'll hear the car lower the idle the RPMs will go down once I take and hit it and it actually starts running again but we'll see if it. Works.

What causes an alternator to fail?

Alternators have a number of moving parts, so as they get dirty and are subjected to extreme temperatures, those internal components can wear out, causing the alternator to go bad. One of the most common problems you’re likely to experience with an alternator is a failure in the bearings.