The alternator is located in the front of your engine, and it is attached to the serpentine belt. The alternator produces electricity that the electrical system uses to power the electrical components in your automobile. This includes things like the lights and touchscreen. An alternator lasts approximately 10 years before it breaks down. The alternator cannot be repaired. When it goes bad, it needs to be replaced. Let’s talk below about how the alternator works.
Spinning Belt and Pulley
As we mentioned above, the alternator is attached to the serpentine belt. This belt is also called the accessory belt because there are other things that are attached to it, as well. The alternator is attached to the belt via a pulley. When you start your automobile, the serpentine belt spins. This, in turn, spins the pulley so the alternator can start to generate a current.
Spinning Rotor Shaft and Magnets
The alternator has a coil that is surrounded by magnets and a rotor shaft. When the pulley is spun by the serpentine belt, it spins the magnets and rotor shaft. As these parts spin around the coil, it starts to generate an electrical current. The initial electrical current is an alternating current. The electrical system needs a direct current, so the alternator converts it.
Converting the Current
The alternator uses a rectifier to convert the current from AC to DC. The current is channeled through the rectifier and then sent to your vehicle’s battery and electrical system. The battery stores any excess current to keep it charged while the engine is not running. The electrical system uses the electricity to power numerous things, including the components discussed above.
A Dying Alternator
When the alternator goes bad, it will underproduce or overproduce electricity. Generally, the alternator should produce electricity that is between 13 volts and 14.5 volts. Electrical production outside of these limits can cause
- Dim, overly bright, or flickering lights
- A car battery that dies frequently
- Accessories that are slow or malfunction
- A misfiring engine that stalls frequently
- Growling or whining noises in the engine
- The odor of burning wires or rubber
The problems may be accompanied by a battery, ALT, or GEN dashboard warning light that shines constantly. If you are having any of these problems, it’s probable that the alternator needs to be replaced.
We can do this at our shop, so call us today to schedule an appointment that works well with your schedule.
