The alternator is crucial for charging the battery and powering the vehicle’s electrical systems. When the alternator begins to fail, it often sends out early warnings. Recognizing these signs can help you avoid a breakdown. At East Windsor Auto, we provide expert alternator replacement and auto electric repair in the greater East Windsor, CT area. Here are five common red flags that your alternator may need to be replaced.

Warning Light on the Dashboard
Most modern vehicles are equipped with a dashboard warning light that may display a battery icon or read ALT or GEN. While it’s easy to assume this light indicates a battery issue, it often signals a problem with the alternator. If this warning comes on, it’s best to have your charging system tested right away. Ignoring it could leave you stranded with a dead battery.

Problems with Lights
One of the most noticeable symptoms of a failing alternator is inconsistent lighting. When the alternator can’t generate enough power, you may see your headlights dimming or flickering. Interior lights may also appear weaker than usual. Because the lighting system is directly tied to the alternator’s output, any irregularities are strong indications that the alternator is struggling to maintain proper power levels.

Electrical Accessories Functioning Poorly
If your alternator is on its way out, your vehicle’s electrical components may start acting strangely. Power windows may move slower than normal or the radio may cut out unexpectedly. Modern vehicles rely heavily on electrical systems, so any unusual or inconsistent performance should be taken seriously. When multiple accessories malfunction at the same time, it often points to an alternator that can no longer keep up with demand.

A Dead or Frequently Draining Battery
A weak or dead battery doesn’t always mean the battery itself is faulty. If the alternator isn’t supplying enough charge, the battery will drain. If you’ve had to jump-start your car more than once recently, or if a relatively new battery keeps dying, the alternator could be the real culprit. A charging-system test can determine whether the alternator is failing to recharge the battery properly.

Strange Noises Coming From the Engine Area
Failing alternators sometimes produce unusual noises. A worn-out alternator bearing can create a grinding sound, while a belt issue can cause squealing. These noises may start subtly and grow louder over time. 

Alternator Replacement & Auto Electric Repair in East Windsor, CT

For auto repair in East Windsor and the surrounding area, contact East Windsor Auto at (860) 266-5573. Feel free to give us a call to make an appointment!