Your alternator does the important job of charging the battery and powering electrical systems while the engine is running. If you suspect that an issue is developing with your alternator, you’ll want to address it quickly so it doesn’t get the chance to escalate and create an unsafe situation. At Auto Science, we provide expert alternator replacement and auto electric repair in the greater Lewisville, TX area. Here’s a look at five symptoms of an alternator problem.

Warning Light on the Dashboard

When alternator trouble is emerging, it often triggers a warning light. Commonly, this light reads ALT or GEN or illuminates in the shape of a little battery icon. Warning lights should always be promptly investigated so the issue can be addressed before it worsens.

Strange Noises 

A healthy alternator operates quietly, but a faulty one may produce unusual noises. These can include grinding, whining, or squealing sounds, often caused by worn-out bearings or a loose belt. 

Dimming or Flickering Lights 

One of the most common signs of alternator trouble is dimming or flickering lights. If you notice your headlights, dashboard lights, or interior lights behaving erratically, it could indicate a failing alternator. The alternator provides power to these lights, so fluctuations in brightness often point to an issue with its output.

Difficulty Starting the Engine

If your vehicle struggles to start or requires multiple attempts before the engine turns over, the alternator might not be providing enough power to recharge the battery properly. 

Electrical Accessory Issues

Since the alternator powers various electrical components in your car, problems with these systems can indicate alternator trouble. For example, you may be dealing with a faulty alternator if your power windows operate slowly, your radio cuts out intermittently, or your air conditioning system performs poorly.

Auto Repair in Lewisville

When you need auto repair in Lewisville, TX and the surrounding area, contact Auto Science at 469-382-9522. At our nearby auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call today to schedule an appointment!