What Is a Serpentine Belt?

A serpentine belt forms a vital part of a vehicle’s engine, at least for an internal combustion vehicle (EVs do not have serpentine belts). But, do you know what a serpentine belt really is and what a serpentine belt does? Where is the serpentine belt, and how long does your serpentine belt last?

Read on to discover more about this vital piece of your vehicle, which is responsible for powering several systems. Then, if you think your serpentine belt tensioner is having issues, or if you need a replacement serpentine belt, contact our service center in Sparta, and we’ll get you back on the road in no time!

What Does a Serpentine Belt Do?

Your car’s serpentine belt, also called a drive belt, is a winding belt used to power the alternator, power steering pump, water pump, and air conditioning system. The belt must remain in good condition to effectively power these systems inside your Ford. When a serpentine belt breaks, which it will at some point, you’ll know.

Where Is the Serpentine Belt Located?

You’ll need to know where the serpentine belt is located if you ever want to replace it yourself. Open the hood of your vehicle, and find your crank pulley at the front of the engine in most cars. Sometimes, it will be over to the side.

The serpentine belt is anywhere from three to four feet long and winds its way through various parts of your engine. The crank pulley is a heavy metal pulley that turns the belt. Another vital part is the tensioner, a weighted piece that keeps the belt taut as it moves. The tautness of the belt is how it’s able to move among the various parts and systems to keep them humming.

How Long Does a Serpentine Belt Last?

Serpentine belts can last anywhere from 50,000 to 100,000 miles. Exposure to heat and friction breaks them down over time. Driving conditions, the last time the belt was replaced, and the type of vehicle you drive can determine how often you need a new serpentine belt. If you never replace it, the belt will break eventually.

If your belt does break or shows signs of wear, schedule a service appointment near Onalaska to get a new one installed.

Signs It’s Time for a Replacement Serpentine Belt

Serpentine belts begin to peel, crack, slip, or fray over time. If you notice any of the following red flags, it’s probably time for a replacement:

• Squealing Noises: Strange noises indicate belt stretching, low tension, or that the belt and pulley aren’t correctly connected. 
• Wear & Tear: Signs of wear and tear are easily recognizable. You’ll see cracks, uneven wear, or fraying on the belt. 
• Systems Failure: If the power steering and/or air conditioning fail, your serpentine belt needs to be replaced immediately. If you suddenly find it harder to turn or if your air conditioning doesn’t get cold, chances are your belt has broken.
• Battery Light Comes On: If the AC and steering systems failed due to a serpentine belt, the battery light may come on too because the alternator stopped turning.
• Complete Breakdown: Total belt failure results in several difficulties for your vehicle, which can be dangerous for you and others on La Crosse roads. You’ll need to get a new one ASAP. 

Schedule Serpentine Belt Service Near West Salem!

We recommend checking your serpentine belt once a month to keep an eye on wear and tension. Replacing it before the belt breaks can keep you from having major repair costs later, such as to your battery, air conditioning, or power steering.

Contact us at Morrie's Sparta Ford to learn more about serpentine belt replacement and how much it costs. Need other types of maintenance, parts, or service? Check out our service specials for savings on oil changes, brakes, battery replacement, and tire service.