Many car drivers don’t actually know the symptoms of a bad alternator. The first thought about starting issues is that the car battery or car starter is bad. It’s hard to understand exactly what the alternator’s job is. Because today’s vehicles are loaded with sensors and computers that all require electricity, a fully-functioning alternator is key in turning the energy from the crankshaft into the electricity compulsory to keep the battery charged and to provide power to the electrical systems. When the alternator fails, a domino effect of electrical issues is created.
So when do alternators need to be replaced, you wonder? Here are some of the most common indicators of a bad alternator:
- Warning light – This light in the instrument panel titled "ALT" or "GEN" is often the first sign that you will notice.
- Dim headlights – This means the alternator is can’t keep up with the demand to perform.
- Other electrical systems start to fail – Other systems may start to act up, such as the power windows, power locks, dashboard lights, air conditioning, radio, GPS, and other extra accessories.
- Unable to keep the car running or even to start the car – There might not be sufficient power in the spark plugs to keep the engine alive.
- Dead battery – The alternator isn’t sending a charge to the battery so ultimately it is drained of its charge.
It is often difficult to determine if your starting issues are caused by a bad battery, the car starter, or the alternator, so head to your auto repair shop for a diagnostic test. This will help your auto mechanic pinpoint the cause of your starting issue and make the appropriate repair to keep you on the road.
Have more questions about when do alternators need to be replaced? Call our ASE Certified Mechanics at Gary’s Quality Automotive for more information about the starting system and to request an appointment. Our auto repair shop proudly serves vehicle owners in Grand Island, NE, Wood River, NE, and Doniphan, NE.
