Don’t Ignore these Warning Signs that Your Alternator Is Malfunctioning

Your vehicle’s alternator plays a crucial role in keeping the electrical system running and the battery charged while the engine is on. Without a properly functioning alternator, your car can experience a range of issues that affect everything from your headlights to your ability to start the engine. Because alternator problems can lead to breakdowns or battery failure, it’s important to recognize the warning signs early. At Murphy Family Auto Repair, we provide expert alternator replacement and auto electric repair in the greater Mesa, AZ area. Here are four signs that your alternator may be malfunctioning and needs professional attention.
Battery Warning Light on the Dashboard
The battery warning light doesn’t only indicate problems with the battery itself—it often comes on when the alternator isn’t charging properly. This light usually appears as a battery symbol or the word ALT or GEN. Don’t ignore this warning, even if your car seems to be running normally at the moment.
Dimming or Flickering Lights
One of the more common symptoms of a bad alternator is dim or flickering lights. This includes your headlights, dashboard lights, and interior lighting. As the alternator begins to fail, it can’t maintain consistent voltage output, causing lights to lose brightness or pulse. If your lights seem unusually dim at night or flicker, it’s time to have your alternator tested.
Strange Noises Coming from the Engine
A failing alternator can produce unusual sounds such as grinding or whining. These noises often come from worn-out bearings or a loose belt connected to the alternator. Any unfamiliar noise coming from the engine area should be checked out to prevent more extensive damage.
Electrical Accessories Working Erratically
When the alternator begins to fail, it can’t supply consistent power to your vehicle’s electrical systems. You may notice issues such as power windows moving slowly, malfunctioning power seats, or a stereo that cuts out. These accessories rely on stable electrical power, and fluctuations in voltage can affect how well they operate.
Alternator Replacement & Auto Electric Repair in Mesa, AZ
For expert
auto repair in Mesa, AZ and the surrounding area, contact Murphy Family Auto Repair at (480) 597-8097. At our local auto shop, we can thoroughly address your vehicle’s repair and maintenance needs. Feel free to give us a call to schedule an appointment!









