Top Tip: Make sure you remove ALL debris from the old belt that may have gotten lodged in various parts of your engine bay as this could cause you problems down the road if it gets caught in pulleys or cooling fans.
As long as your vehicle hasn’t been driven for a prolonged amount of time without a belt, you should be able to get away with just replacing it and driving as normal. The process for diagnosing this fault couldn’t be simpler, carry out a visual inspection on the engine and it should be immediately obvious if your belt has snapped. If your belt has snapped, you will usually also notice a couple of other symptoms to indicate this, such as loss of power steering and loss of air conditioning. Your vehicle is smart enough to recognize this as a fault and tell you through the battery light. If your auxiliary drive belt has broken, then it’s no longer able to spin your alternator, meaning there is no electrical charge being generated in which to charge your battery. This is by far the most common reason for your battery light to illuminate whilst your driving. Broken Auxiliary Drive belt (Serpentine Belt) Here is a more detailed list of the 8 most common causes of why your car battery warning light is on.Ĭonclusion Causes of Battery Light On While Driving 1. While these are just some of the most common ones, there are many more. There are actually quite many things that can cause your car battery light to come on. In rare cases, a faulty dash cluster or a bad car battery is to blame. It can also be because of a faulty or worn alternator or the wirings to it. The most common reason for a car battery light on while driving is a broken auxiliary or serpentine belt. Therefore, if your vehicle detects that its battery is no longer being charged, it will illuminate your battery light as you’re driving. Your battery needs recharging as it loses a percentage of its charge every time you start your vehicle. It is a simple indicator to tell you whether or not your vehicle’s alternator is charging your battery.Īs your alternator is driven by the auxiliary drive belt (serpentine belt), it generates an electrical charge designed to run the electrics on your engine whilst you drive and recharge your battery.
Your battery light DOES NOT always indicate whether or not your battery is faulty. So, in this article, not only will we talk you through what a battery light is, but also what the top 8 most common reasons why it may show up whilst you’re driving. Your worries are more than doubled when you also don’t understand what that light indicates. It can always be a worry when you have an unexpected light show up on your dashboard.
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