Your car’s alternator is one of the most important components of its electrical system. It generates the power needed to keep the battery charged and ensures that lights, electronics, and critical systems run smoothly. When an alternator begins to fail, it often gives warning signs before completely breaking down. Recognizing these symptoms early can prevent you from being stranded. At Hye-Tech Auto, we provide expert alternator replacement and auto electric repair in the greater Covina area. Here are five signs of alternator failure.

Dashboard Warning Light

Most modern vehicles are equipped with a warning system that alerts you when something is wrong with the charging system. A battery-shaped icon or the letters ALT or GEN may appear on your dashboard. While this light might make you think the battery is at fault, it often points to alternator trouble. Ignoring this warning can result in your car losing power completely, so it should be addressed promptly.

Malfunctioning Lights

One of the most common indications of a failing alternator is dimming or flickering headlights. Since the alternator provides power to the vehicle’s lighting system, any fluctuation in its performance can be reflected in the brightness of the lights. You may also notice dashboard or interior lights behaving erratically.

Strange Noises Under the Hood

If you hear whining, grinding, or squealing sounds coming from the engine area, the alternator could be the culprit. Worn-out bearings or a belt problem can cause these unusual noises. Any unexpected sounds should be checked by a mechanic to avoid more serious issues.

Electrical Issues Throughout the Car

When an alternator weakens, it struggles to supply enough electricity to all of the car’s systems. This can lead to slow or malfunctioning power windows, erratic radio performance, or failure of heated seats and other accessories. Even the air conditioning system may be affected. 

A Dead or Weak Battery

While the battery provides the initial power to start your car, the alternator is responsible for keeping it charged. If the alternator is no longer functioning properly, the battery will drain, leaving you with repeated jump-starts. Replacing the battery alone won’t solve the problem if the alternator is the true source of the issue.

Alternator Replacement & Auto Electric Repair in Covina, CA

When you need auto repair in Covina and the surrounding area, contact Hye-Tech Auto at 626-332-5452. At our local auto shop, we can expertly handle your vehicle’s repair and maintenance needs. Feel free to give us a call to make an appointment for car care in greater Covina, CA!