There are a several small components on our cars, trucks, and SUVs that don't receive proper credit for all that they accomplish; the drive belt idler pulley is near the top of that list. This device makes sure that the belts distribute power to several accessory components. If it is faulty, then it affects all the accessory systems we depend on. One of the key indicators for early detection of a defect is a strange winding noise coming from the drive belt area of your engine. If the situation is not corrected it will lead to drive belt failure that disables the vehicle completely. When this happens during vehicle operation the potential damage is very extreme because your drive belt provides the required motion for several accessories. Your power steering will cease to function and make it almost impossible to steer, and the air conditioning will stop working properly. Depending on the automobile make and model, it may immediately begin to overheat all at the same time. If a drive belt pulley is not replaced at the earliest sign of potential failure it can have some dangerous outcomes. If proper repairs are not completed it can develop unsafe conditions for yourself and your passengers.
Drive belt idler pulleys are mounted to the drive belt tensioner assembly and distribute the correct pressure to secure the drive belt. This pulley is what the drive belt depends on to function properly. This allows the drive belt to move freely and power several mechanical components. The drive belt allows your power steering, air conditioner and air pump to function as they should on most vehicles. On some cars and trucks it may also drive the radiator fan. The different functions of the drive belt pulley vary based on the specific application.
Replacing a drive belt pulley is something that can be accomplished with a minimum amount of frustration in most cases depending on the vehicle.