The battery-shaped light or the ALT or GEN light is illuminated on your dashboard because your vehicle is having an electrical problem. The problem could be the battery or it could be the alternator. In this blog post, we are going to talk about the alternator. On average, the alternator will last between 100,000 and 150,000 miles. If your car has this much mileage on it and it is experiencing any of the signs we are going to discuss and this blog post, Certified Auto Repair advises that it’s time to replace the alternator.
A Battery That Has Died Prematurely
The alternator recharges the battery as it discharges. This ensures that you always have a charged battery in the engine. If your battery has died prematurely, it’s probable that the alternator is unable to keep it charged. In other words, the problem is with the alternator and not the battery.
Dim or Lights That Are Too Bright
Another sign that your alternator is going bad is headlights, taillights, and interior lights that are too dim or too bright. The lights may also flicker or slowly go back and forth between dim and bright.
Frequent Engine Stalls and Misfiring
The alternator is in charge of powering your spark plugs. If it is failing to do this job, your engine will misfire and install frequently. As an aside, this is also a sign that your spark plugs need to be replaced.
Growling, Whining, or Squealing Sounds
Oftentimes, a dying alternator will produce unusual sounds. If the sound is coming from the alternator itself, it will be a growling or grinding sound. If the sound is coming from the alternator belt, it will sound like whining or squealing.
Slow or Malfunctioning Accessories
Aside from powering the spark plugs, the alternator also helps to supply power to all of your vehicle’s electrical accessories. This includes the seats, windows, entertainment system, and navigation system. If these accessories are slow or malfunctioning, the alternator is not producing enough power.
The Smell of Burning Wires or Rubber
Finally, it is not uncommon for a malfunctioning alternator to produce too much voltage. Generally, the alternator should produce voltage between 13 and 14.5 volts. If it produces more than this, it will overload your car, truck, or utility vehicle’s electrical system. Consequently, you will smell hot wires and rubber. Call Certified Auto Repair in Henrico, VA today if you suspect your alternator is going bad. We can test the part and replace it.
