5 Warning Signs that It's Time to Replace Your Alternator

Your vehicle’s alternator plays a crucial role in keeping the battery charged and powering the electrical systems while the engine is running. Catching the early warning signs of alternator trouble can help you avoid being stranded and prevent further issues with your vehicle. At Engine Masters Automotive, we provide expert alternator replacement in the greater Mesa, AZ area. If you notice any of the following symptoms, it may be time to replace your alternator.
Dimming/Flickering Lights
If your headlights, dashboard lights, or interior lights start to dim or flicker while driving, it means the alternator may not be producing enough power to keep everything running smoothly. This issue tends to become more pronounced at night or when other electrical components are in use.
Battery Keeps Dying
While a dead battery isn’t always caused by the alternator, frequent battery failures could be a sign that the alternator is no longer keeping it charged properly. If you've recently replaced the battery but still find yourself needing jump-starts, the alternator might be to blame. A weak alternator won't provide enough voltage to recharge the battery during normal operation, leading to repeated failures.
Problems with Electrical Accessories
A failing alternator can cause a variety of electrical issues throughout your vehicle. You might notice problems such as power windows operating slowly, malfunctioning power locks, or unresponsive infotainment systems. Because the alternator is responsible for distributing electricity to these components, inconsistent performance often indicates it’s struggling to deliver the necessary power.
Strange Noises Under the Hood
A failing alternator can produce unusual sounds, such as grinding or whining. These noises may result from worn-out bearings in the alternator or a belt-related issue. If you hear strange noises coming from the engine bay, it's a good idea to get an inspection ASAP.
Dashboard Warning Light Is On
Most vehicles are equipped with a dashboard warning light that indicates issues with the charging system. This light might appear as a battery symbol or say ALT or GEN. If this light comes on while you’re driving, it’s a clear indication that something is wrong with your alternator or electrical system. Ignoring this warning could result in a breakdown, so it’s best to have the system checked by a professional.
Alternator Replacement in Mesa, AZ
When you need
auto repair in Mesa, AZ and the surrounding area, contact Engine Masters Automotive at
(480) 351-6068. Feel free to give us a call to make an appointment!









