The A/C belt tensioner is one of the most crucial parts of the engine. The proper amount of tension on the air condition belt must be monitored at all times. If the tensioner loses its strength, then it should be replaced right away to keep the parts of the car working correctly. However, if you're not sure when you should purchase a new one, then here's a guide to help you out.
It's inevitable for the belts to wear out in time. If you start hearing fluttering noises while driving, this is an indication that the belt in the tensioner is too loose. When buying a new A/C belt tensioner, make sure that the belt is made of rubber. This can easily wear especially when being constantly used. A good idea is to replace your old belt with a serpentine belt, which is a continuous belt that is used to drive different peripheral devices, such as the air conditioning, air pump, and alternator.
Rust can build up in the A/C belt tensioner. This can prevent the tensioner from spinning freely and can consequently cause greater damage to the engine. If you're going to buy a new A/C belt tensioner, make sure that it is made of durable metal. Though it inevitable for it to rust, find one that will service you longer than your previous one.
Damage in the Pulley
Another cause for an A/C belt tensioner to wear out is if the pulley got damaged. This can be adjusted to give the right amount of support but also depends on the size and type of the belt. You can buy one with an idler pulley since it is made to maintain proper belt tension. This also fits well into a cavity in the engine's front.
Tip: You can apply a small amount of belt dressing while the belt turns to be able to restore the oils to the rubber and can eliminate noises coming from it.
Now that you've read the guide, you can decide what A/C belt tensioner to buy. Don't forget to explore and read reviews online to read about the best brands in the market. Good luck!