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Your vehicle’s alternator plays a crucial role in keeping everything running smoothly. It generates electricity to power your car’s electrical systems and keeps the battery charged while the engine is running. When the alternator begins to fail, it can lead to a range of frustrating issues. Recognizing the early warning signs can help you address the problem before you’re left stranded on the side of the road.  At Jersey Auto Repair, we provide expert alternator replacement and auto electric repair in the greater North Brunswick area. Here are five warning signs of alternator failure.

Dimming or Flickering Lights
One of the most noticeable signs of alternator trouble is dimming or flickering lights. This can affect your headlights, dashboard lights, and even interior lighting. Because the alternator supplies power to these systems, inconsistent brightness often indicates that it’s struggling to maintain proper voltage.

Electrical Accessories Acting Strange
Modern vehicles rely heavily on electrical components, including power windows, seat controls, infotainment systems, and climate controls. When the alternator starts to fail, these accessories may work intermittently or stop functioning altogether. These issues often occur because the alternator can no longer supply enough consistent power.

Battery Warning Light on the Dashboard
Many drivers assume the battery warning light only points to a battery issue, but it often indicates a charging system problem. If this light comes on while driving, it may mean the alternator isn’t properly charging the battery. Ignoring this warning can lead to a drained battery and a vehicle that won’t start. Having the charging system tested promptly can help determine whether the alternator is to blame.

Strange Noises from Under the Hood
A failing alternator can sometimes produce unusual sounds. You might hear grinding, whining, or squealing coming from the engine area. These noises can result from worn bearings or a belt issue. 

Frequent Dead Battery
If your battery repeatedly dies, the alternator could be the root cause. While a weak battery can also cause starting problems, a failing alternator won’t recharge the battery while you drive. This leads to a cycle of jump-starts and breakdowns.

Alternator Replacement & Auto Electric Repair in North Brunswick, NJ

For expert auto repair in North Brunswick and the surrounding area, contact Jersey Auto Repair at (732) 366-5229. Feel free to give us a call to make an appointment for car care in greater North Brunswick!