What Are the Symptoms of a Failing Serpentine Belt?

The serpentine belt, also known as the belt that wraps around the alternator, is a belt that helps run various vehicle accessories. The serpentine belt can be a v-belt or flat ribbed. Sometimes, it can solely work in conjunction with the alternator. Other times, it can be responsible for powering the power steering pump, water pump, A/C compressor, and more.

Since the serpentine belt is made of rubber, it will inherently go through wear and tear over multiple years of usage. A worn serpentine belt is definitely a concern. In the case that it fails, the alternator won't be able to supply power to other parts of your car, meaning you may experience electrical malfunctions and even a dead battery. 

You may notice one or more of the following signs when your serpentine belt is aging:

  • Dim interior or exterior lighting
  • Battery warning light has turned on dashboard
  • Your engine stalls 
  • You hear a flapping or clicking noise of a damaged belt under the hood
  • Problems with A/C or steering functions

As soon as you catch any of the warning signs above, it is important to bring your vehicle to our trusted auto repair shop for inspections. Our certified technicians can examine your serpentine belt to see whether it needs a replacement. We'll have you back on the road in no time.


If you need a belt replacement, please do not hesitate to give Complete Automotive Repair Specialists, LLC a call or visit soon.