Your vehicle's alternator plays a vital role in keeping the electrical system running and the battery charged. It powers everything from your headlights to your power windows while the engine is running. If the alternator begins to fail, it can lead to a range of electrical problems and eventually cause your vehicle to stall. Recognizing the early signs of alternator trouble can help you avoid getting stranded. At Jake’s Auto Repair, our local mechanics provide expert alternator replacement and auto electric repair in the greater Phoenix area. Here are four warning signs that your alternator might be on its way out.

Battery Warning Light Illuminates

Vehicles commonly have a dashboard warning light shaped like a battery. While this light may indicate a bad battery, it often points to an issue with the charging system, which includes the alternator. If this light comes on and stays on while you’re driving, it’s a sign that your alternator might not be charging the battery properly. The longer the problem goes unresolved, the more likely it is that your battery will eventually die due to lack of charge.

Lights Are Dimming/Flickering 

One of the most noticeable symptoms of a failing alternator is inconsistent lighting. If your headlights or dashboard lights seem unusually dim or start to flicker, the alternator may not be supplying enough power. A healthy alternator should provide a steady flow of power, so fluctuating brightness is a red flag.

Dead Battery

While batteries do wear out over time, a dead battery that occurs suddenly or repeatedly may actually be the result of a bad alternator. If the alternator isn’t charging the battery while the engine runs, the battery will be drained faster than it can be replenished. A diagnostic test can determine whether the battery or the alternator is to blame, but recurring dead batteries are often a symptom of alternator trouble.

Electrical Accessories Malfunctioning

When an alternator is on the verge of failure, it may struggle to power all of your vehicle's electrical systems. You might notice issues like power windows moving slowly, the radio cutting out, or your air conditioning system working intermittently. These malfunctions often mean the alternator is not keeping up with the vehicle’s electrical needs.

Alternator Replacement & Auto Electric Repair in Phoenix, AZ

For expert auto repair in Phoenix and the surrounding area, contact Jake’s Auto Repair at 602-246-4900. Feel free to give us a call to schedule an appointment! And be sure to check out all of our current special offers!