When to Replace a Serpentine Belt

Serpentine belt


Have you ever wondered, “how long does a serpentine belt last” or when to replace a serpentine belt? A serpentine belt, which is also called a drive belt, is constructed from a tough rubber material that can last upwards of 50,000-100,000 without replacement. The main cause of these belts needing replacement is the heat and friction that breaks down the rubber over time. If your serpentine belt needs replacing, check out our service and parts tips and tricks. If you are in the Logan area and have any questions about how long does a serpentine belt lasts, feel free to contact us anytime!

Functions of a Serpentine Belt 

A serpentine belt is the main drive belt that connects the engine to the alternator, water pump, power steering pump, and air conditioning. To ensure these components are working properly, the serpentine belt needs to be in top condition.

When to Replace a Serpentine Belt

So, do you know when to replace a serpentine belt? Due to regular wear and tear, the serpentine belt will begin to crack, peel, fray, or slip. Here are some things to look out for that could mean it’s time for replacement:

  • Squealing Noises: If you begin hearing squealing noises, this could mean that the belt has low tension or is stretching. However, it could also mean that the pulley and belt aren’t connected properly. 
  • Wear and Tear: By looking at the belt, you will find various signs of wear and tear, such as uneven wear or cracks throughout the belt.
  • Systems Failure: If a few of the dependent systems fail, such as the air conditioning or power steering, you should immediately replace the serpentine belt.
  • Complete Breakdown: If the entire belt fails, your vehicle could break down in the Hillsboro area. Ensuring the belt is in top condition, and functioning properly can prevent these issues.

What Exactly is a Belt Tensioner? 

A belt-tensioner is present on drive belts on most modern vehicles. It uses an intuitive spring and pulley system that keeps the belt at a certain tension, which can prevent the belt from breaking or any other damage. These belt tensioners are designed to ensure the belt stays in one place, as a loose belt could lead to issues with the dependent systems, such as the power steering. To ensure your vehicle continues to operate effectively, you should replace the belt tensioner when the belt itself is replaced.

Learn More About Service Tips and Tricks at Truck Ranch!

Now that you know when to replace a serpentine belt and how long does a serpentine belt last, feel free to visit us at Truck Ranch in American Fork and talk to our experts about the best service tips and tricks, like why does my truck shake when I’m braking. It is critical that the serpentine belt in your vehicle is functioning properly, and won’t lead to mechanical issues.

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