Signs That Your Alternator is Failing

Is your car’s battery dying faster than usual? Do you have to jump-start your car more often? If so, your alternator is failing. Your car’s alternator is an important component- it converts the engine’s mechanical energy into electrical energy that powers all of the electrical components in your car. If your alternator fails, you will not be able to start your car or use any electronic features. This blog post will discuss some signs that your alternator may fail. Let’s get to the list.

Dim or Overly Bright Lights

One of the signs that your alternator is going bad is dim or overly bright lights. This is because the alternator powers the car’s lights. If the voltage produced by the alternator is too low, the lights will be dim. If the voltage is too high, the lights will be too bright. Headlights are especially affected by a failing alternator because they require more power to operate.



If you notice this, it is time to replace your alternator. As highlighted by the team behind Speed Alternators, there are different types of alternators available; you can buy them depending on your car’s make, model, year, and driving habits. Ensure to change this on time to avoid being stranded on the side of the road with a dead car battery.

Dead Battery

Another sign of a failing alternator is a dead battery. The alternator charges the battery while the engine is running, so if the alternator is not working properly, the battery will eventually die. You may be able to jump-start your car temporarily, but if the alternator is failing, the battery will eventually die again.

If you notice that your car’s battery is dying more often, take it to a mechanic to have it checked out. You will likely find a failed alternator that needs to be replaced. Check your car’s battery to see if it needs to be replaced.

Trouble Starting or Frequent Stalling

A vehicle in good condition should start and run smoothly without any issues. If you notice that your car is having trouble starting or frequently stalls, this could signify a failing alternator. When the alternator is not working properly, it cannot provide enough power to keep the engine running. This can cause the engine to stall or have difficulty starting.

When you experience this issue, it is best to take your car to a mechanic to have it checked out as soon as possible. Ignoring the problem can cause even more damage to your vehicle and may eventually lead to a complete engine failure.

Growling or Whining Noises

If you hear strange growling or whining noises from your car, this may be another sign of a failing alternator. These noises are usually caused by a loose belt that is not tight enough. The belts can slip and make noise when the alternator is not working properly.

This issue is usually easy to fix and does not require a mechanic. You can try tightening the belt yourself or take it to a mechanic to have them take a look. They can tighten the belt for you and ensure everything is in working order.

If you notice any of these signs, you must take your car to a mechanic as soon as possible. Ignoring the problem can cause even more damage to your vehicle and may eventually lead to a complete engine failure. Prevention is key when it comes to maintaining your car- if you keep up with regular maintenance and checkups, you can avoid many major issues.