Why does my serpentine belt squeal sometimes?
Common Serpentine Belt Problems Worn/Cracked Serpentine Belt – Serpentine belts have grooves which fit into grooves in the pulleys. Over time, the friction wears down these grooves, resulting in a loose fit. A worn belt can, therefore, begin to slip, which is one of the causes the squeal.
Is it normal for a new serpentine belt to squeak?
As the serpentine belt’s primary aim is to transmit power from your engine pulley to other belt-driven components, if your belt goes bad or you replaced a low-quality belt that does not have enough strength to carry all the pulleys along, it produces a whirring or squealing noise.
Can I use belt dressing on a serpentine belt?
Today, you should never put belt dressing on an EPDM-made serpentine belt. Belt dressing, and other oils and solvents, may quieten the belt noise when first applied, but these oils will actually cause the belt’s rib surface to become more aggressive once they dry out, leading to even more belt noise issues.
How can I Make my serpentine belt stop squeaking?
If you want to know how to make a serpentine belt stop squeaking or squealing, we’ve got the answers. How to make serpentine belt stop squeaking? Open the hood and inspect the serpentine belt for wear and damage, and its tension. If the belt seems fine, start the engine and squirt the ribbed side of the belt with some water.
What do you need to know about a serpentine belt?
A serpentine belt either works with an idler pulley or a belt tensioner. They can be manual, spring loaded, or even hydraulic. The tensioner applies force to create tension for the belt. Serpentine belt, on the other hand, maintains proper tension so that you don’t need to re-tighten it.
Why does my serpentine belt make a noise when I start the car?
Temperature and moisture can cause the belt to be noisy too. Squeaks that only occur when there is an early morning dew or heavy fog means there is moisture on the belt. It should disappear as the engine warms up. Cold temperatures will stiffen the rubber in the belt, causing it to make a noise on start-up.
Why does my pulley belt make a squeaking noise?
Make sure the belt is tensioned properly and re-tensioned after a couple of minutes when the engine starts. The belt tends to slip and makes noise when it’s not aligned properly with the pulley system. Due to the extreme weather, the belt reduces its stiffness and makes the squeaking noise.