Your car’s alternator is responsible for making sure the battery is charged up, but more than that, it’s also responsible for making sure the electricity is distributed throughout the car at a nice, steady rate.
Without the alternator, things would burn out, over-charge or just completely fail. The alternator, then, is very important indeed.
As with any important component on your car, there is always an inherent risk of failure. It’s a hard-working part after all, so it’s going to need some love from time to time, if not a complete replacement.
But how can your alternator fail, and what should you do? We’ve put this handy guide together to help you out should your alternator need some attention.
Does the battery in your car keep going flat? If so, that can be a sure-fire way to tell your alternator is on its way out. The alternator’s primary function is to charge the battery so that it has enough juice to start the car.
Once the car is running, it’s the alternator’s job to keep the battery topped up with electricity so that you can run things like the lights, heater and wipers, and anything else electrical.
Solution: You’re going to need to replace the alternator
The alternator is driven by the auxiliary belt, which usually powers things like the water pump, alternator, power steering and sometimes fan. If this belt is old, it can slip or become slack and thus its grip on the alternator pulley can lessen. Less grip means it won’t spin. If it’s not spinning, it won’t charge.
Solution: If the belt is old or worn, you’ll need to replace it. The same if the belt is tight, but the alternator still doesn’t seem to be charging.
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