It’ll keep the power steering (via ps pump) and cooling system (coolant pump, coolant radiator, etc.) functional.But there are a couple of other benefits to consider, including: What Are The Benefits Of Drive Belt Tensioner Replacement?Ī bad v-belt or serpentine belt tensioner will reduce the performance of your car, so replacing it will mean your car will work as it should. And in most cases, a mechanic may replace an old belt as well. It’s typically accompanied by a pulley that may also need replacement. Note: A vehicle may have a manual or automatic belt tensioner (spring-loaded idler pulley). So, a worn-out tensioner needs to be replaced at the earliest. This, in turn, can result in belt failure or reduced belt tension, which affects your car’s accessories like the alternator, and subsequently, the battery. However, the tensioner assembly and the drive belt can wear out over time, becoming less effective. The belt tension helps the belt transfer power and stay functional by keeping it in contact with the crankshaft pulley. The drive belt transfers power to various engine accessories, like the ac compressor, the power steering pump (ps pump), and the alternator (via alternator pulley). What Is A Drive Belt Tensioner? Why Does It Need Replacement?Ī drive belt tensioner or an idler pulley is a component in the engine bay that maintains tension on the drive belt - which could be a serpentine belt or v-belt. Here are answers to four queries on drive belt tensioners and their replacement: 1. These problems will also be highlighted by the lit warning lights mentioned above.īoth are a sign that your drive belt tensioner needs a replacement.Ĥ FAQs On Drive Belt Tensioner Replacement Performance ProblemsĪ failing tensioner may lead to alternator issues or performance problems in certain elements of your car, like the water pump, power steering, and air conditioning. If that happens, you might have to get the drive belt tensioner assessed at your local auto repair shop. In this case, certain dashboard warning lights, like the check engine light and battery light, may turn on. When the drive belt loses tension, your vehicle may experience issues, like charging failure and engine overheating. So, it’s best to get a belt tensioner and drive belt replacement as soon as possible. If ignored, tensioner housing cracks could result in belt failure or destroy parts in front of it, like the radiator.Īdditionally, a worn-out belt tensioner pulley or tensioner spring won’t apply proper belt tension, making the belt lose functionality. This wear and tear may also appear in the form of rust or cracks on the tensioner housing or a loose tensioner arm. On inspecting the drive belt, you may discover visible belt wear and tear. Tip: Note the belt noise you hear and mention it to the mechanic when taking your vehicle for any servicing. If it’s not the tensioner, you could have a bad serpentine belt or v-belt. So, if you hear a worrying noise coming from your vehicle’s engine bay, you may want to have its drive belt tensioner checked out.
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