It sounds like you may have a failing alternator. As you may know, the alternator charges the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator pulley. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power. You may also notice a whining sound as a result of the bearings inside the alternator begin to fail. I would recommend having an expert from YourMechanic come to your location to diagnose and inspect your charging system.
How to Identify and Fix Common car Problems ?
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It is possible that the problems that you have been experiencing with the bad alternators have damaged the battery causing it to be weak. This would make the Battery Light come on. It is also possible that there is a problem with the fusible link or the alternator fuse for the charging system.
Silverado`s and Sierra`s, and pretty much most vehicles, will all have two fuse boxes. One will be located inside of the engine bay, and the second will be located in the driver side footwell.
One of the most common reasons the battery light comes on and the car battery stops charging is because of corrosion. Whether the corrosion is on the battery cables or cable terminals, it is still a problem that needs to be addressed. Another common culprit for the battery not charging is a problem with the alternator.
A dying battery can be one cause for your dashboard lights flickering. The battery plays a key role in powering your car`s electrical system. If the battery isn`t working properly, it could cause the dash lights to flicker.
A bad battery won`t usually harm your starter or alternator, however, since both of those components get their voltage directly from the battery, if the battery is underperforming, both the alternator`s and starter`s performance will be affected as well.
But when someone mentions the “alternator fuse”, they`re generally referring to the primary, high-amperage fuse (or fusible link) between the alternator and the battery. Like any fuse, the primary alternator fuse acts as a circuit protection device.
While the size of your fuse depends on the amperage of your alternator, you should generally select a fuse that can handle more amperage than your alternator is able to output. For example, if your alternator outputs 200 amps, you should choose a fuse that`s no less than 200 amps.
The cause of this problem is usually one of 3 things – a failed starter motor, a bad connection between the battery and starter motor, or a blown fuse (if present) in line between the starter and the battery.
If your car won`t start but the battery is good, the most common cause is a faulty starter – though it could also be to do with your fuel. You may have insufficient fuel to get the car going.
If the red battery light on your car`s dashboard starts blinking, then take it as a sign that your battery or charging system is not functioning properly. The battery warning light is in the shape of a battery symbol, usually with a plus and minus sign.
Regardless of what symptoms you`re noticing, the battery light is telling you a simple truth: you have battery problems, and your car isn`t getting enough current from the battery to operate correctly. That means it`s time to take action, starting with some simple maintenance.
One of the most common causes of headlight flickering is a dying battery. Your headlights rely on power from the battery to function properly. If the battery is failing, flickering, or dimming headlights may be the result.
A defective alternator can kill a battery if bad diodes or an internal voltage regulator prevents it from charging the battery. Or a diode can leak, allowing current to flow after the vehicle engine is shut off. A worn or loose drive belt, or a weak belt tensioner, will also interfere with charging.
What happens when alternator stops working while driving? The car tends to slowly lose power if the alternator has gone bad while the car is being driven. You`ll notice the headlights start to dim shortly before the car loses power and dies.
The red battery light could indicate a problem with the alternator, battery or other parts of the electrical and charging system in the car. It could be a minor problem such as a malfunction rectifier unit, blown fuse or cabling short circuit.
Apart from these seven common causes, there can be other reasons why your dashboard warning light or charging system light is on, like a: Blown fuse causing a short in your vehicle`s electrical system. Malfunctioning voltage regulator. Damaged alternator pulley.
One of the most common problems you`re likely to experience with an alternator is a failure in the bearings. There are needle bearings in the alternator that allow the rotor to freely spin inside the housing, and those bearings can break down over time as a result of exposure to heat and dirt.
While a car alternator usually lasts the car`s lifetime, it can deteriorate and malfunction under certain circumstances. Factors such as normal wear and tear, damaged parts, exposure to water or heat, and overuse can cause your alternator to stop working.
A broken fuse won`t allow current to pass. This will create a potential difference across the terminals of the fuse. At one terminal, battery voltage is present and at the other terminal, no voltage is read.
Alternator ratings range from about 60 or 70 amps up to 150 amps or more on many late-model vehicles. Some high-output alternators can generate upward of 200 amps.
Fuses often aren`t sized properly. Thus, a 30-amp fuse will fit into the same space as a 15-amp fuse. The whole purpose for any protection is to protect from having a fire.
The most likely issue is that a component is clogged. A clogged fuel filter is the most common reason, although a loss of power in your car could also indicate problems with the fuel pump or fuel line. Impurities or debris may be blocking the system, which causes the loss of power in a car.
However, you may not be able to start your vehicle after it`s powered off. But if the alternator isn`t functioning properly and the battery dies, your car may eventually lose power and stall or completely shut off.
If your vehicle won`t start, it`s usually caused by a dying or dead battery, loose or corroded connection cables, a bad alternator or an issue with the starter. It can be hard to determine if you`re dealing with a battery or an alternator problem. Here`s how to know which one is the culprit.